System.Drawing: added email to icon and test file headers

[mono.git] / mcs / class / System.Drawing / System.Drawing / Graphics.cs

//
// System.Drawing.Graphics.cs
//
// Authors:
//      Gonzalo Paniagua Javier (gonzalo@ximian.com) (stubbed out)
//      Alexandre Pigolkine(pigolkine@gmx.de)
//      Jordi Mas i Hernandez (jordi@ximian.com)
//      Sebastien Pouliot  <sebastien@ximian.com>
//
// Copyright (C) 2003 Ximian, Inc. (http://www.ximian.com)
// Copyright (C) 2004-2006 Novell, Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using System.Text;

namespace System.Drawing
{
#if !NET_2_0
        [ComVisible(false)]  
#endif
        public sealed class Graphics : MarshalByRefObject, IDisposable
#if NET_2_0
        , IDeviceContext
#endif
        {
                internal IntPtr nativeObject = IntPtr.Zero;
                internal IMacContext maccontext;
                private bool disposed = false;
                private static float defDpiX = 0;
                private static float defDpiY = 0;
                private IntPtr deviceContextHdc;

#if !NET_2_0
                [ComVisible(false)]
#endif
                public delegate bool EnumerateMetafileProc (EmfPlusRecordType recordType,
                                                            int flags,
                                                            int dataSize,
                                                            IntPtr data,
                                                            PlayRecordCallback callbackData);
                
#if !NET_2_0
                [ComVisible (false)]
#endif
                public delegate bool DrawImageAbort (IntPtr callbackData);

                internal Graphics (IntPtr nativeGraphics)
                {
                        nativeObject = nativeGraphics;
                }

                ~Graphics ()
                {
                        Dispose ();                     
                }               

                static internal float systemDpiX {
                        get {
                                if (defDpiX == 0) {
                                        Bitmap bmp = new Bitmap (1, 1);
                                        Graphics g = Graphics.FromImage (bmp);
                                        defDpiX = g.DpiX;
                                        defDpiY = g.DpiY;
                                }
                                return defDpiX;
                        }
                }

                static internal float systemDpiY {
                        get {
                                if (defDpiY == 0) {
                                        Bitmap bmp = new Bitmap (1, 1);
                                        Graphics g = Graphics.FromImage (bmp);
                                        defDpiX = g.DpiX;
                                        defDpiY = g.DpiY;
                                }
                                return defDpiY;
                        }
                }

                internal IntPtr NativeObject {
                        get {
                                return nativeObject;
                        }

                        set {
                                nativeObject = value;
                        }
                }
                
                [MonoTODO ("Metafiles, both WMF and EMF formats, aren't supported.")]
                public void AddMetafileComment (byte [] data)
                {
                        throw new NotImplementedException ();
                }

                public GraphicsContainer BeginContainer ()
                {
                        uint state;
                        Status status;
                        status = GDIPlus.GdipBeginContainer2 (nativeObject, out state);
                        GDIPlus.CheckStatus (status);

                        return new GraphicsContainer(state);
                }

                [MonoTODO ("The rectangles and unit parameters aren't supported in libgdiplus")]                
                public GraphicsContainer BeginContainer (Rectangle dstrect, Rectangle srcrect, GraphicsUnit unit)
                {
                        uint state;
                        Status status;
                        status = GDIPlus.GdipBeginContainerI (nativeObject, ref dstrect, ref srcrect, unit, out state);
                        GDIPlus.CheckStatus (status);

                        return new GraphicsContainer (state);
                }

                [MonoTODO ("The rectangles and unit parameters aren't supported in libgdiplus")]                
                public GraphicsContainer BeginContainer (RectangleF dstrect, RectangleF srcrect, GraphicsUnit unit)
                {
                        uint state;
                        Status status;
                        status = GDIPlus.GdipBeginContainer (nativeObject, ref dstrect, ref srcrect, unit, out state);
                        GDIPlus.CheckStatus (status);

                        return new GraphicsContainer (state);
                }

                
                public void Clear (Color color)
                {
                        Status status;
                        status = GDIPlus.GdipGraphicsClear (nativeObject, color.ToArgb ());
                        GDIPlus.CheckStatus (status);
                }
#if NET_2_0             
                [MonoLimitation ("Works on Win32 and on X11 (but not on Cocoa and Quartz)")]
                public void CopyFromScreen (Point upperLeftSource, Point upperLeftDestination, Size blockRegionSize)
                {
                        CopyFromScreen (upperLeftSource.X, upperLeftSource.Y, upperLeftDestination.X, upperLeftDestination.Y,
                                blockRegionSize, CopyPixelOperation.SourceCopy);                                
                }

                [MonoLimitation ("Works on Win32 and (for CopyPixelOperation.SourceCopy only) on X11 but not on Cocoa and Quartz")]
                public void CopyFromScreen (Point upperLeftSource, Point upperLeftDestination, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
                {
                        CopyFromScreen (upperLeftSource.X, upperLeftSource.Y, upperLeftDestination.X, upperLeftDestination.Y,
                                blockRegionSize, copyPixelOperation);
                }
                
                [MonoLimitation ("Works on Win32 and on X11 (but not on Cocoa and Quartz)")]
                public void CopyFromScreen (int sourceX, int sourceY, int destinationX, int destinationY, Size blockRegionSize)
                {
                        CopyFromScreen (sourceX, sourceY, destinationX, destinationY, blockRegionSize,
                                CopyPixelOperation.SourceCopy);
                }

                [MonoLimitation ("Works on Win32 and (for CopyPixelOperation.SourceCopy only) on X11 but not on Cocoa and Quartz")]
                public void CopyFromScreen (int sourceX, int sourceY, int destinationX, int destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
                {
                        if (!Enum.IsDefined (typeof (CopyPixelOperation), copyPixelOperation))
                                throw new InvalidEnumArgumentException (Locale.GetText ("Enum argument value '{0}' is not valid for CopyPixelOperation", copyPixelOperation));

                        if (GDIPlus.UseX11Drawable) {
                                CopyFromScreenX11 (sourceX, sourceY, destinationX, destinationY, blockRegionSize, copyPixelOperation);
                        } else if (GDIPlus.UseCarbonDrawable) {
                                CopyFromScreenMac (sourceX, sourceY, destinationX, destinationY, blockRegionSize, copyPixelOperation);
                        } else if (GDIPlus.UseCocoaDrawable) {
                                CopyFromScreenMac (sourceX, sourceY, destinationX, destinationY, blockRegionSize, copyPixelOperation);
                        } else {
                                CopyFromScreenWin32 (sourceX, sourceY, destinationX, destinationY, blockRegionSize, copyPixelOperation);
                        }
                }

                private void CopyFromScreenWin32 (int sourceX, int sourceY, int destinationX, int destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
                {
                        IntPtr window = GDIPlus.GetDesktopWindow ();
                        IntPtr srcDC = GDIPlus.GetDC (window);
                        IntPtr dstDC = GetHdc ();
                        GDIPlus.BitBlt (dstDC, destinationX, destinationY, blockRegionSize.Width,
                                blockRegionSize.Height, srcDC, sourceX, sourceY, (int) copyPixelOperation);

                        GDIPlus.ReleaseDC (IntPtr.Zero, srcDC);
                        ReleaseHdc (dstDC);                     
                }
                
                private void CopyFromScreenMac (int sourceX, int sourceY, int destinationX, int destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
                {
                        throw new NotImplementedException ();
                }

                private void CopyFromScreenX11 (int sourceX, int sourceY, int destinationX, int destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
                {
                        IntPtr window, image, defvisual, vPtr;
                        int AllPlanes = ~0, nitems = 0, pixel;

                        if (copyPixelOperation != CopyPixelOperation.SourceCopy)
                                throw new NotImplementedException ("Operation not implemented under X11");
                
                        if (GDIPlus.Display == IntPtr.Zero) {
                                GDIPlus.Display = GDIPlus.XOpenDisplay (IntPtr.Zero);
                        }

                        window = GDIPlus.XRootWindow (GDIPlus.Display, 0);
                        defvisual = GDIPlus.XDefaultVisual (GDIPlus.Display, 0);
                        XVisualInfo visual = new XVisualInfo ();

                        /* Get XVisualInfo for this visual */
                        visual.visualid = GDIPlus.XVisualIDFromVisual(defvisual);
                        vPtr = GDIPlus.XGetVisualInfo (GDIPlus.Display, 0x1 /* VisualIDMask */, ref visual, ref nitems);
                        visual = (XVisualInfo) Marshal.PtrToStructure(vPtr, typeof (XVisualInfo));
#if false
                        Console.WriteLine ("visual\t{0}", visual.visual);
                        Console.WriteLine ("visualid\t{0}", visual.visualid);
                        Console.WriteLine ("screen\t{0}", visual.screen);
                        Console.WriteLine ("depth\t{0}", visual.depth);
                        Console.WriteLine ("klass\t{0}", visual.klass);
                        Console.WriteLine ("red_mask\t{0:X}", visual.red_mask);
                        Console.WriteLine ("green_mask\t{0:X}", visual.green_mask);
                        Console.WriteLine ("blue_mask\t{0:X}", visual.blue_mask);
                        Console.WriteLine ("colormap_size\t{0}", visual.colormap_size);
                        Console.WriteLine ("bits_per_rgb\t{0}", visual.bits_per_rgb);
#endif
                        image = GDIPlus.XGetImage (GDIPlus.Display, window, sourceX, sourceY, blockRegionSize.Width,
                                blockRegionSize.Height, AllPlanes, 2 /* ZPixmap*/);
                        if (image == IntPtr.Zero) {
                                string s = String.Format ("XGetImage returned NULL when asked to for a {0}x{1} region block", 
                                        blockRegionSize.Width, blockRegionSize.Height);
                                throw new InvalidOperationException (s);
                        }
                                
                        Bitmap bmp = new Bitmap (blockRegionSize.Width, blockRegionSize.Height);
                        int red, blue, green;
                        int red_mask = (int) visual.red_mask;
                        int blue_mask = (int) visual.blue_mask;
                        int green_mask = (int) visual.green_mask;
                        for (int y = 0; y < blockRegionSize.Height; y++) {
                                for (int x = 0; x < blockRegionSize.Width; x++) {
                                        pixel = GDIPlus.XGetPixel (image, x, y);

                                        switch (visual.depth) {
                                                case 16: /* 16bbp pixel transformation */
                                                        red = (int) ((pixel & red_mask ) >> 8) & 0xff;
                                                        green = (int) (((pixel & green_mask ) >> 3 )) & 0xff;
                                                        blue = (int) ((pixel & blue_mask ) << 3 ) & 0xff;
                                                        break;
                                                case 24:
                                                case 32:
                                                        red = (int) ((pixel & red_mask ) >> 16) & 0xff;
                                                        green = (int) (((pixel & green_mask ) >> 8 )) & 0xff;
                                                        blue = (int) ((pixel & blue_mask )) & 0xff;
                                                        break;
                                                default:
                                                        string text = Locale.GetText ("{0}bbp depth not supported.", visual.depth);
                                                        throw new NotImplementedException (text);
                                        }
                                                
                                        bmp.SetPixel (x, y, Color.FromArgb (255, red, green, blue));                                                     
                                }
                        }

                        DrawImage (bmp, destinationX, destinationY);
                        bmp.Dispose ();
                        GDIPlus.XDestroyImage (image);
                        GDIPlus.XFree (vPtr);
                }
#endif

                public void Dispose ()
                {
                        Status status;
                        if (! disposed) {
                                if (GDIPlus.UseCarbonDrawable || GDIPlus.UseCocoaDrawable) {
                                        Flush ();
                                        if (maccontext != null)
                                                maccontext.Release ();
                                }

                                status = GDIPlus.GdipDeleteGraphics (nativeObject);
                                nativeObject = IntPtr.Zero;
                                GDIPlus.CheckStatus (status);
                                disposed = true;                                
                        }

                        GC.SuppressFinalize(this);
                }

                
                public void DrawArc (Pen pen, Rectangle rect, float startAngle, float sweepAngle)
                {
                        DrawArc (pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
                }

                
                public void DrawArc (Pen pen, RectangleF rect, float startAngle, float sweepAngle)
                {
                        DrawArc (pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
                }

                
                public void DrawArc (Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
                {
                        Status status;
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        
                        status = GDIPlus.GdipDrawArc (nativeObject, pen.nativeObject,
                                        x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                // Microsoft documentation states that the signature for this member should be
                // public void DrawArc( Pen pen,  int x,  int y,  int width,  int height,   int startAngle,
                // int sweepAngle. However, GdipDrawArcI uses also float for the startAngle and sweepAngle params
                public void DrawArc (Pen pen, int x, int y, int width, int height, int startAngle, int sweepAngle)
                {
                        Status status;
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        status = GDIPlus.GdipDrawArcI (nativeObject, pen.nativeObject,
                                                x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawBezier (Pen pen, PointF pt1, PointF pt2, PointF pt3, PointF pt4)
                {
                        Status status;
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        status = GDIPlus.GdipDrawBezier (nativeObject, pen.nativeObject,
                                                        pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X,
                                                        pt3.Y, pt4.X, pt4.Y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawBezier (Pen pen, Point pt1, Point pt2, Point pt3, Point pt4)
                {
                        Status status;
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        status = GDIPlus.GdipDrawBezierI (nativeObject, pen.nativeObject,
                                                        pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X,
                                                        pt3.Y, pt4.X, pt4.Y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawBezier (Pen pen, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4)
                {
                        Status status;
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        status = GDIPlus.GdipDrawBezier (nativeObject, pen.nativeObject, x1,
                                                        y1, x2, y2, x3, y3, x4, y4);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawBeziers (Pen pen, Point [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        int length = points.Length;
                        Status status;

                        if (length < 4)
                                return;

                        for (int i = 0; i < length - 1; i += 3) {
                                Point p1 = points [i];
                                Point p2 = points [i + 1];
                                Point p3 = points [i + 2];
                                Point p4 = points [i + 3];

                                status = GDIPlus.GdipDrawBezier (nativeObject, 
                                                        pen.nativeObject,
                                                        p1.X, p1.Y, p2.X, p2.Y, 
                                                        p3.X, p3.Y, p4.X, p4.Y);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public void DrawBeziers (Pen pen, PointF [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        int length = points.Length;
                        Status status;

                        if (length < 4)
                                return;

                        for (int i = 0; i < length - 1; i += 3) {
                                PointF p1 = points [i];
                                PointF p2 = points [i + 1];
                                PointF p3 = points [i + 2];
                                PointF p4 = points [i + 3];

                                status = GDIPlus.GdipDrawBezier (nativeObject, 
                                                        pen.nativeObject,
                                                        p1.X, p1.Y, p2.X, p2.Y, 
                                                        p3.X, p3.Y, p4.X, p4.Y);
                                GDIPlus.CheckStatus (status);
                        }
                }

                
                public void DrawClosedCurve (Pen pen, PointF [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawClosedCurve (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawClosedCurve (Pen pen, Point [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawClosedCurveI (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }
                        
                // according to MSDN fillmode "is required but ignored" which makes _some_ sense since the unmanaged 
                // GDI+ call doesn't support it (issue spotted using Gendarme's AvoidUnusedParametersRule)
                public void DrawClosedCurve (Pen pen, Point [] points, float tension, FillMode fillmode)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawClosedCurve2I (nativeObject, pen.nativeObject, points, points.Length, tension);
                        GDIPlus.CheckStatus (status);
                }

                // according to MSDN fillmode "is required but ignored" which makes _some_ sense since the unmanaged 
                // GDI+ call doesn't support it (issue spotted using Gendarme's AvoidUnusedParametersRule)
                public void DrawClosedCurve (Pen pen, PointF [] points, float tension, FillMode fillmode)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawClosedCurve2 (nativeObject, pen.nativeObject, points, points.Length, tension);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawCurve (Pen pen, Point [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurveI (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawCurve (Pen pen, PointF [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawCurve (Pen pen, PointF [] points, float tension)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve2 (nativeObject, pen.nativeObject, points, points.Length, tension);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawCurve (Pen pen, Point [] points, float tension)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve2I (nativeObject, pen.nativeObject, points, points.Length, tension);              
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawCurve (Pen pen, PointF [] points, int offset, int numberOfSegments)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve3 (nativeObject, pen.nativeObject,
                                                        points, points.Length, offset,
                                                        numberOfSegments, 0.5f);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawCurve (Pen pen, Point [] points, int offset, int numberOfSegments, float tension)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve3I (nativeObject, pen.nativeObject,
                                                        points, points.Length, offset,
                                                        numberOfSegments, tension);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawCurve (Pen pen, PointF [] points, int offset, int numberOfSegments, float tension)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        
                        Status status;
                        status = GDIPlus.GdipDrawCurve3 (nativeObject, pen.nativeObject,
                                                        points, points.Length, offset,
                                                        numberOfSegments, tension);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawEllipse (Pen pen, Rectangle rect)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        
                        DrawEllipse (pen, rect.X, rect.Y, rect.Width, rect.Height);
                }

                public void DrawEllipse (Pen pen, RectangleF rect)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        DrawEllipse (pen, rect.X, rect.Y, rect.Width, rect.Height);
                }

                public void DrawEllipse (Pen pen, int x, int y, int width, int height)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status;
                        status = GDIPlus.GdipDrawEllipseI (nativeObject, pen.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawEllipse (Pen pen, float x, float y, float width, float height)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawEllipse (nativeObject, pen.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawIcon (Icon icon, Rectangle targetRect)
                {
                        if (icon == null)
                                throw new ArgumentNullException ("icon");

                        DrawImage (icon.GetInternalBitmap (), targetRect);
                }

                public void DrawIcon (Icon icon, int x, int y)
                {
                        if (icon == null)
                                throw new ArgumentNullException ("icon");

                        DrawImage (icon.GetInternalBitmap (), x, y);
                }

                public void DrawIconUnstretched (Icon icon, Rectangle targetRect)
                {
                        if (icon == null)
                                throw new ArgumentNullException ("icon");

                        DrawImageUnscaled (icon.GetInternalBitmap (), targetRect);
                }
                
                public void DrawImage (Image image, RectangleF rect)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        
                        Status status = GDIPlus.GdipDrawImageRect(nativeObject, image.NativeObject, rect.X, rect.Y, rect.Width, rect.Height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, PointF point)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        
                        Status status = GDIPlus.GdipDrawImage (nativeObject, image.NativeObject, point.X, point.Y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point [] destPoints)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        
                        Status status = GDIPlus.GdipDrawImagePointsI (nativeObject, image.NativeObject, destPoints, destPoints.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point point)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        DrawImage (image, point.X, point.Y);
                }

                public void DrawImage (Image image, Rectangle rect)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        DrawImage (image, rect.X, rect.Y, rect.Width, rect.Height);
                }

                public void DrawImage (Image image, PointF [] destPoints)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        Status status = GDIPlus.GdipDrawImagePoints (nativeObject, image.NativeObject, destPoints, destPoints.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, int x, int y)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageI (nativeObject, image.NativeObject, x, y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, float x, float y)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImage (nativeObject, image.NativeObject, x, y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, Rectangle srcRect, GraphicsUnit srcUnit)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRectI (nativeObject, image.NativeObject,
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height,
                                srcUnit, IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, RectangleF destRect, RectangleF srcRect, GraphicsUnit srcUnit)
                {                       
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject,
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height,
                                srcUnit, IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        
                        Status status = GDIPlus.GdipDrawImagePointsRectI (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y, 
                                srcRect.Width, srcRect.Height, srcUnit, IntPtr.Zero, 
                                null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        
                        Status status = GDIPlus.GdipDrawImagePointsRect (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y, 
                                srcRect.Width, srcRect.Height, srcUnit, IntPtr.Zero, 
                                null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit, 
                                ImageAttributes imageAttr)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        Status status = GDIPlus.GdipDrawImagePointsRectI (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y,
                                srcRect.Width, srcRect.Height, srcUnit,
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, float x, float y, float width, float height)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRect(nativeObject, image.NativeObject, x, y,
                           width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, 
                                ImageAttributes imageAttr)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        Status status = GDIPlus.GdipDrawImagePointsRect (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y,
                                srcRect.Width, srcRect.Height, srcUnit, 
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, int x, int y, Rectangle srcRect, GraphicsUnit srcUnit)
                {                       
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImagePointRectI(nativeObject, image.NativeObject, x, y, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, int x, int y, int width, int height)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectI (nativeObject, image.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, float x, float y, RectangleF srcRect, GraphicsUnit srcUnit)
                {                       
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImagePointRect (nativeObject, image.nativeObject, x, y, srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, srcUnit);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, ImageAttributes imageAttr, DrawImageAbort callback)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        Status status = GDIPlus.GdipDrawImagePointsRect (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y,
                                srcRect.Width, srcRect.Height, srcUnit, 
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, callback, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit, ImageAttributes imageAttr, DrawImageAbort callback)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");
                        
                        Status status = GDIPlus.GdipDrawImagePointsRectI (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y,
                                srcRect.Width, srcRect.Height, srcUnit, 
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, callback, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit, ImageAttributes imageAttr, DrawImageAbort callback, int callbackData)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        if (destPoints == null)
                                throw new ArgumentNullException ("destPoints");

                        Status status = GDIPlus.GdipDrawImagePointsRectI (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y, 
                                srcRect.Width, srcRect.Height, srcUnit, 
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, callback, (IntPtr) callbackData);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, float srcX, float srcY, float srcWidth, float srcHeight, GraphicsUnit srcUnit)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject,
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcX, srcY, srcWidth, srcHeight, srcUnit, IntPtr.Zero, 
                                null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);                                   
                }
                
                public void DrawImage (Image image, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, ImageAttributes imageAttr, DrawImageAbort callback, int callbackData)
                {
                        Status status = GDIPlus.GdipDrawImagePointsRect (nativeObject, image.NativeObject,
                                destPoints, destPoints.Length , srcRect.X, srcRect.Y,
                                srcRect.Width, srcRect.Height, srcUnit, 
                                imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, callback, (IntPtr) callbackData);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, int srcX, int srcY, int srcWidth, int srcHeight, GraphicsUnit srcUnit)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRectI (nativeObject, image.NativeObject,
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcX, srcY, srcWidth, srcHeight, srcUnit, IntPtr.Zero, 
                                null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, float srcX, float srcY, float srcWidth, float srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject,
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcX, srcY, srcWidth, srcHeight, srcUnit,
                                imageAttrs != null ? imageAttrs.NativeObject : IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, Rectangle destRect, int srcX, int srcY, int srcWidth, int srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttr)
                {                       
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRectI (nativeObject, image.NativeObject, 
                                        destRect.X, destRect.Y, destRect.Width, 
                                        destRect.Height, srcX, srcY, srcWidth, srcHeight,
                                        srcUnit, imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, null, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, Rectangle destRect, int srcX, int srcY, int srcWidth, int srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttr, DrawImageAbort callback)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRectI (nativeObject, image.NativeObject, 
                                        destRect.X, destRect.Y, destRect.Width, 
                                        destRect.Height, srcX, srcY, srcWidth, srcHeight,
                                        srcUnit, imageAttr != null ? imageAttr.NativeObject : IntPtr.Zero, callback,
                                        IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawImage (Image image, Rectangle destRect, float srcX, float srcY, float srcWidth, float srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs, DrawImageAbort callback)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject, 
                                        destRect.X, destRect.Y, destRect.Width, 
                                        destRect.Height, srcX, srcY, srcWidth, srcHeight,
                                        srcUnit, imageAttrs != null ? imageAttrs.NativeObject : IntPtr.Zero, 
                                        callback, IntPtr.Zero);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, float srcX, float srcY, float srcWidth, float srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs, DrawImageAbort callback, IntPtr callbackData)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject, 
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcX, srcY, srcWidth, srcHeight, srcUnit, 
                                imageAttrs != null ? imageAttrs.NativeObject : IntPtr.Zero, callback, callbackData);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawImage (Image image, Rectangle destRect, int srcX, int srcY, int srcWidth, int srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs, DrawImageAbort callback, IntPtr callbackData)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        Status status = GDIPlus.GdipDrawImageRectRect (nativeObject, image.NativeObject, 
                                destRect.X, destRect.Y, destRect.Width, destRect.Height,
                                srcX, srcY, srcWidth, srcHeight, srcUnit,
                                imageAttrs != null ? imageAttrs.NativeObject : IntPtr.Zero, callback, callbackData);
                        GDIPlus.CheckStatus (status);
                }               
                
                public void DrawImageUnscaled (Image image, Point point)
                {
                        DrawImageUnscaled (image, point.X, point.Y);
                }
                
                public void DrawImageUnscaled (Image image, Rectangle rect)
                {
                        DrawImageUnscaled (image, rect.X, rect.Y, rect.Width, rect.Height);
                }
                
                public void DrawImageUnscaled (Image image, int x, int y)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");
                        DrawImage (image, x, y, image.Width, image.Height);
                }

                public void DrawImageUnscaled (Image image, int x, int y, int width, int height)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");

                        // avoid creating an empty, or negative w/h, bitmap...
                        if ((width <= 0) || (height <= 0))
                                return;

                        using (Image tmpImg = new Bitmap (width, height)) {
                                using (Graphics g = FromImage (tmpImg)) {
                                        g.DrawImage (image, 0, 0, image.Width, image.Height);
                                        DrawImage (tmpImg, x, y, width, height);
                                }
                        }
                }

#if NET_2_0
                public void DrawImageUnscaledAndClipped (Image image, Rectangle rect)
                {
                        if (image == null)
                                throw new ArgumentNullException ("image");

                        int width = (image.Width > rect.Width) ? rect.Width : image.Width;
                        int height = (image.Height > rect.Height) ? rect.Height : image.Height;

                        DrawImageUnscaled (image, rect.X, rect.Y, width, height);                       
                }
#endif

                public void DrawLine (Pen pen, PointF pt1, PointF pt2)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawLine (nativeObject, pen.nativeObject,
                                                pt1.X, pt1.Y, pt2.X, pt2.Y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawLine (Pen pen, Point pt1, Point pt2)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawLineI (nativeObject, pen.nativeObject,
                                                pt1.X, pt1.Y, pt2.X, pt2.Y);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawLine (Pen pen, int x1, int y1, int x2, int y2)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawLineI (nativeObject, pen.nativeObject, x1, y1, x2, y2);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawLine (Pen pen, float x1, float y1, float x2, float y2)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawLine (nativeObject, pen.nativeObject, x1, y1, x2, y2);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawLines (Pen pen, PointF [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipDrawLines (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawLines (Pen pen, Point [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipDrawLinesI (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawPath (Pen pen, GraphicsPath path)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (path == null)
                                throw new ArgumentNullException ("path");
                        Status status = GDIPlus.GdipDrawPath (nativeObject, pen.nativeObject, path.nativePath);
                        GDIPlus.CheckStatus (status);
                }
                
                public void DrawPie (Pen pen, Rectangle rect, float startAngle, float sweepAngle)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        DrawPie (pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
                }
                
                public void DrawPie (Pen pen, RectangleF rect, float startAngle, float sweepAngle)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        DrawPie (pen, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
                }
                
                public void DrawPie (Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawPie (nativeObject, pen.nativeObject, x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }
                
                // Microsoft documentation states that the signature for this member should be
                // public void DrawPie(Pen pen, int x,  int y,  int width,   int height,   int startAngle
                // int sweepAngle. However, GdipDrawPieI uses also float for the startAngle and sweepAngle params
                public void DrawPie (Pen pen, int x, int y, int width, int height, int startAngle, int sweepAngle)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawPieI (nativeObject, pen.nativeObject, x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawPolygon (Pen pen, Point [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipDrawPolygonI (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawPolygon (Pen pen, PointF [] points)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipDrawPolygon (nativeObject, pen.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawRectangle (Pen pen, Rectangle rect)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        DrawRectangle (pen, rect.Left, rect.Top, rect.Width, rect.Height);
                }

                public void DrawRectangle (Pen pen, float x, float y, float width, float height)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawRectangle (nativeObject, pen.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawRectangle (Pen pen, int x, int y, int width, int height)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("pen");
                        Status status = GDIPlus.GdipDrawRectangleI (nativeObject, pen.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawRectangles (Pen pen, RectangleF [] rects)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("image");
                        if (rects == null)
                                throw new ArgumentNullException ("rects");
                        Status status = GDIPlus.GdipDrawRectangles (nativeObject, pen.nativeObject, rects, rects.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawRectangles (Pen pen, Rectangle [] rects)
                {
                        if (pen == null)
                                throw new ArgumentNullException ("image");
                        if (rects == null)
                                throw new ArgumentNullException ("rects");
                        Status status = GDIPlus.GdipDrawRectanglesI (nativeObject, pen.nativeObject, rects, rects.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void DrawString (string s, Font font, Brush brush, RectangleF layoutRectangle)
                {
                        DrawString (s, font, brush, layoutRectangle, null);
                }

                public void DrawString (string s, Font font, Brush brush, PointF point)
                {
                        DrawString (s, font, brush, new RectangleF (point.X, point.Y, 0, 0), null);
                }

                public void DrawString (string s, Font font, Brush brush, PointF point, StringFormat format)
                {
                        DrawString(s, font, brush, new RectangleF(point.X, point.Y, 0, 0), format);
                }

                public void DrawString (string s, Font font, Brush brush, float x, float y)
                {
                        DrawString (s, font, brush, new RectangleF (x, y, 0, 0), null);
                }

                public void DrawString (string s, Font font, Brush brush, float x, float y, StringFormat format)
                {
                        DrawString (s, font, brush, new RectangleF(x, y, 0, 0), format);
                }

                public void DrawString (string s, Font font, Brush brush, RectangleF layoutRectangle, StringFormat format)
                {
                        if (font == null)
                                throw new ArgumentNullException ("font");
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (s == null || s.Length == 0)
                                return;

                        Status status = GDIPlus.GdipDrawString (nativeObject, s, s.Length, font.NativeObject, ref layoutRectangle, format != null ? format.NativeObject : IntPtr.Zero, brush.nativeObject);
                        GDIPlus.CheckStatus (status);
                }

                public void EndContainer (GraphicsContainer container)
                {
#if NET_2_0
                        if (container == null)
                                throw new ArgumentNullException ("container");
#endif
                        Status status = GDIPlus.GdipEndContainer(nativeObject, container.NativeObject);
                        GDIPlus.CheckStatus (status);
                }

                private const string MetafileEnumeration = "Metafiles enumeration, for both WMF and EMF formats, isn't supported.";

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, RectangleF srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, Rectangle srcRect, GraphicsUnit srcUnit, EnumerateMetafileProc callback, IntPtr callbackData)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point [] destPoints, Rectangle srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Rectangle destRect, Rectangle srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, Point destPoint, Rectangle srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, RectangleF destRect, RectangleF srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF [] destPoints, RectangleF srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }

                [MonoTODO (MetafileEnumeration)]
                public void EnumerateMetafile (Metafile metafile, PointF destPoint, RectangleF srcRect, GraphicsUnit unit, EnumerateMetafileProc callback, IntPtr callbackData, ImageAttributes imageAttr)
                {
                        throw new NotImplementedException ();
                }
        
                public void ExcludeClip (Rectangle rect)
                {
                        Status status = GDIPlus.GdipSetClipRectI (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, CombineMode.Exclude);
                        GDIPlus.CheckStatus (status);
                }

                public void ExcludeClip (Region region)
                {
                        if (region == null)
                                throw new ArgumentNullException ("region");
                        Status status = GDIPlus.GdipSetClipRegion (nativeObject, region.NativeObject, CombineMode.Exclude);
                        GDIPlus.CheckStatus (status);
                }

                
                public void FillClosedCurve (Brush brush, PointF [] points)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillClosedCurve (nativeObject, brush.NativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }
                
                public void FillClosedCurve (Brush brush, Point [] points)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillClosedCurveI (nativeObject, brush.NativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                
                public void FillClosedCurve (Brush brush, PointF [] points, FillMode fillmode)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        FillClosedCurve (brush, points, fillmode, 0.5f);
                }
                
                public void FillClosedCurve (Brush brush, Point [] points, FillMode fillmode)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        FillClosedCurve (brush, points, fillmode, 0.5f);
                }

                public void FillClosedCurve (Brush brush, PointF [] points, FillMode fillmode, float tension)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillClosedCurve2 (nativeObject, brush.NativeObject, points, points.Length, tension, fillmode);
                        GDIPlus.CheckStatus (status);
                }

                public void FillClosedCurve (Brush brush, Point [] points, FillMode fillmode, float tension)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillClosedCurve2I (nativeObject, brush.NativeObject, points, points.Length, tension, fillmode);
                        GDIPlus.CheckStatus (status);
                }

                public void FillEllipse (Brush brush, Rectangle rect)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        FillEllipse (brush, rect.X, rect.Y, rect.Width, rect.Height);
                }

                public void FillEllipse (Brush brush, RectangleF rect)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        FillEllipse (brush, rect.X, rect.Y, rect.Width, rect.Height);
                }

                public void FillEllipse (Brush brush, float x, float y, float width, float height)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        Status status = GDIPlus.GdipFillEllipse (nativeObject, brush.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void FillEllipse (Brush brush, int x, int y, int width, int height)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        Status status = GDIPlus.GdipFillEllipseI (nativeObject, brush.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPath (Brush brush, GraphicsPath path)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (path == null)
                                throw new ArgumentNullException ("path");
                        Status status = GDIPlus.GdipFillPath (nativeObject, brush.NativeObject,  path.NativeObject);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPie (Brush brush, Rectangle rect, float startAngle, float sweepAngle)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        Status status = GDIPlus.GdipFillPie (nativeObject, brush.NativeObject, rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPie (Brush brush, int x, int y, int width, int height, int startAngle, int sweepAngle)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        Status status = GDIPlus.GdipFillPieI (nativeObject, brush.NativeObject, x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPie (Brush brush, float x, float y, float width, float height, float startAngle, float sweepAngle)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        Status status = GDIPlus.GdipFillPie (nativeObject, brush.NativeObject, x, y, width, height, startAngle, sweepAngle);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPolygon (Brush brush, PointF [] points)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillPolygon2 (nativeObject, brush.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPolygon (Brush brush, Point [] points)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillPolygon2I (nativeObject, brush.nativeObject, points, points.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPolygon (Brush brush, Point [] points, FillMode fillMode)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillPolygonI (nativeObject, brush.nativeObject, points, points.Length, fillMode);
                        GDIPlus.CheckStatus (status);
                }

                public void FillPolygon (Brush brush, PointF [] points, FillMode fillMode)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (points == null)
                                throw new ArgumentNullException ("points");
                        Status status = GDIPlus.GdipFillPolygon (nativeObject, brush.nativeObject, points, points.Length, fillMode);
                        GDIPlus.CheckStatus (status);
                }

                public void FillRectangle (Brush brush, RectangleF rect)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        FillRectangle (brush, rect.Left, rect.Top, rect.Width, rect.Height);
                }

                public void FillRectangle (Brush brush, Rectangle rect)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        FillRectangle (brush, rect.Left, rect.Top, rect.Width, rect.Height);
                }

                public void FillRectangle (Brush brush, int x, int y, int width, int height)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        
                        Status status = GDIPlus.GdipFillRectangleI (nativeObject, brush.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void FillRectangle (Brush brush, float x, float y, float width, float height)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        
                        Status status = GDIPlus.GdipFillRectangle (nativeObject, brush.nativeObject, x, y, width, height);
                        GDIPlus.CheckStatus (status);
                }

                public void FillRectangles (Brush brush, Rectangle [] rects)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (rects == null)
                                throw new ArgumentNullException ("rects");

                        Status status = GDIPlus.GdipFillRectanglesI (nativeObject, brush.nativeObject, rects, rects.Length);
                        GDIPlus.CheckStatus (status);
                }

                public void FillRectangles (Brush brush, RectangleF [] rects)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (rects == null)
                                throw new ArgumentNullException ("rects");

                        Status status = GDIPlus.GdipFillRectangles (nativeObject, brush.nativeObject, rects, rects.Length);
                        GDIPlus.CheckStatus (status);
                }

                
                public void FillRegion (Brush brush, Region region)
                {
                        if (brush == null)
                                throw new ArgumentNullException ("brush");
                        if (region == null)
                                throw new ArgumentNullException ("region");
                        
                        Status status = GDIPlus.GdipFillRegion (nativeObject, brush.NativeObject, region.NativeObject);                  
                        GDIPlus.CheckStatus(status);
                }

                
                public void Flush ()
                {
                        Flush (FlushIntention.Flush);
                }

                
                public void Flush (FlushIntention intention)
                {
                        if (nativeObject == IntPtr.Zero) {
                                return;
                        }

                        Status status = GDIPlus.GdipFlush (nativeObject, intention);
                        GDIPlus.CheckStatus (status);                    

                        if (maccontext != null)
                                maccontext.Synchronize ();
                }

                [EditorBrowsable (EditorBrowsableState.Advanced)]               
                public static Graphics FromHdc (IntPtr hdc)
                {
                        IntPtr graphics;
                        Status status = GDIPlus.GdipCreateFromHDC (hdc, out graphics);
                        GDIPlus.CheckStatus (status);
                        return new Graphics (graphics);
                }

                [MonoTODO]
                [EditorBrowsable (EditorBrowsableState.Advanced)]
                public static Graphics FromHdc (IntPtr hdc, IntPtr hdevice)
                {
                        throw new NotImplementedException ();
                }

                [EditorBrowsable (EditorBrowsableState.Advanced)]
                [SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
                public static Graphics FromHdcInternal (IntPtr hdc)
                {
                        GDIPlus.Display = hdc;
                        return null;
                }

                [EditorBrowsable (EditorBrowsableState.Advanced)]               
                public static Graphics FromHwnd (IntPtr hwnd)
                {
                        IntPtr graphics;

                        if (GDIPlus.UseCocoaDrawable) {
                                CocoaContext context = MacSupport.GetCGContextForNSView (hwnd);
                                GDIPlus.GdipCreateFromContext_macosx (context.ctx, context.width, context.height, out graphics);

                                Graphics g = new Graphics (graphics);
                                g.maccontext = context;

                                return g;
                        }

                        if (GDIPlus.UseCarbonDrawable) {
                                CarbonContext context = MacSupport.GetCGContextForView (hwnd);
                                GDIPlus.GdipCreateFromContext_macosx (context.ctx, context.width, context.height, out graphics);
                                
                                Graphics g = new Graphics (graphics);
                                g.maccontext = context;
                                
                                return g;
                        }
                        if (GDIPlus.UseX11Drawable) {
                                if (GDIPlus.Display == IntPtr.Zero) {
                                        GDIPlus.Display = GDIPlus.XOpenDisplay (IntPtr.Zero);
                                        if (GDIPlus.Display == IntPtr.Zero)
                                                throw new NotSupportedException ("Could not open display (X-Server required. Check you DISPLAY environment variable)");
                                }
                                if (hwnd == IntPtr.Zero) {
                                        hwnd = GDIPlus.XRootWindow (GDIPlus.Display, GDIPlus.XDefaultScreen (GDIPlus.Display));
                                }

                                return FromXDrawable (hwnd, GDIPlus.Display);

                        }

                        Status status = GDIPlus.GdipCreateFromHWND (hwnd, out graphics);
                        GDIPlus.CheckStatus (status);

                        return new Graphics (graphics);
                }
                
                [EditorBrowsable (EditorBrowsableState.Advanced)]
                [SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
                public static Graphics FromHwndInternal (IntPtr hwnd)
                {
                        return FromHwnd (hwnd);
                }

                public static Graphics FromImage (Image image)
                {
                        IntPtr graphics;

                        if (image == null) 
                                throw new ArgumentNullException ("image");

                        if ((image.PixelFormat & PixelFormat.Indexed) != 0)
                                throw new Exception (Locale.GetText ("Cannot create Graphics from an indexed bitmap."));

                        Status status = GDIPlus.GdipGetImageGraphicsContext (image.nativeObject, out graphics);
                        GDIPlus.CheckStatus (status);
                        Graphics result = new Graphics (graphics);
                                
                        if (GDIPlus.RunningOnUnix ()) {
                                Rectangle rect  = new Rectangle (0,0, image.Width, image.Height);
                                GDIPlus.GdipSetVisibleClip_linux (result.NativeObject, ref rect);
                        }
                                
                        return result;
                }

                internal static Graphics FromXDrawable (IntPtr drawable, IntPtr display)
                {
                        IntPtr graphics;

                        Status s = GDIPlus.GdipCreateFromXDrawable_linux (drawable, display, out graphics);
                        GDIPlus.CheckStatus (s);
                        return new Graphics (graphics);
                }

                [MonoTODO]
                public static IntPtr GetHalftonePalette ()
                {
                        throw new NotImplementedException ();
                }

#if !NET_2_0
                [EditorBrowsable (EditorBrowsableState.Advanced)]
#endif
                public IntPtr GetHdc ()
                {
                        GDIPlus.CheckStatus (GDIPlus.GdipGetDC (this.nativeObject, out deviceContextHdc));
                        return deviceContextHdc;
                }
                
                public Color GetNearestColor (Color color)
                {
                        int argb;
                        
                        Status status = GDIPlus.GdipGetNearestColor (nativeObject, out argb);
                        GDIPlus.CheckStatus (status);

                        return Color.FromArgb (argb);
                }

                
                public void IntersectClip (Region region)
                {
                        if (region == null)
                                throw new ArgumentNullException ("region");
                        Status status = GDIPlus.GdipSetClipRegion (nativeObject, region.NativeObject, CombineMode.Intersect);
                        GDIPlus.CheckStatus (status);
                }
                
                public void IntersectClip (RectangleF rect)
                {
                        Status status = GDIPlus.GdipSetClipRect (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, CombineMode.Intersect);
                        GDIPlus.CheckStatus (status);
                }

                public void IntersectClip (Rectangle rect)
                {                       
                        Status status = GDIPlus.GdipSetClipRectI (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, CombineMode.Intersect);
                        GDIPlus.CheckStatus (status);
                }

                public bool IsVisible (Point point)
                {
                        bool isVisible = false;

                        Status status = GDIPlus.GdipIsVisiblePointI (nativeObject, point.X, point.Y, out isVisible);
                        GDIPlus.CheckStatus (status);

                        return isVisible;
                }

                
                public bool IsVisible (RectangleF rect)
                {
                        bool isVisible = false;

                        Status status = GDIPlus.GdipIsVisibleRect (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, out isVisible);
                        GDIPlus.CheckStatus (status);

                        return isVisible;
                }

                public bool IsVisible (PointF point)
                {
                        bool isVisible = false;

                        Status status = GDIPlus.GdipIsVisiblePoint (nativeObject, point.X, point.Y, out isVisible);
                        GDIPlus.CheckStatus (status);

                        return isVisible;
                }
                
                public bool IsVisible (Rectangle rect)
                {
                        bool isVisible = false;

                        Status status = GDIPlus.GdipIsVisibleRectI (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, out isVisible);
                        GDIPlus.CheckStatus (status);

                        return isVisible;
                }
                
                public bool IsVisible (float x, float y)
                {
                        return IsVisible (new PointF (x, y));
                }
                
                public bool IsVisible (int x, int y)
                {
                        return IsVisible (new Point (x, y));
                }
                
                public bool IsVisible (float x, float y, float width, float height)
                {
                        return IsVisible (new RectangleF (x, y, width, height));
                }

                
                public bool IsVisible (int x, int y, int width, int height)
                {
                        return IsVisible (new Rectangle (x, y, width, height));
                }

                
                public Region[] MeasureCharacterRanges (string text, Font font, RectangleF layoutRect, StringFormat stringFormat)
                {
                        if ((text == null) || (text.Length == 0))
                                return new Region [0];

                        if (font == null)
                                throw new ArgumentNullException ("font");

                        if (stringFormat == null)
                                throw new ArgumentException ("stringFormat");

                        int regcount = stringFormat.GetMeasurableCharacterRangeCount ();
                        if (regcount == 0)
                                return new Region[0];

                        IntPtr[] native_regions = new IntPtr [regcount];
                        Region[] regions = new Region [regcount];
                        
                        for (int i = 0; i < regcount; i++) {
                                regions[i] = new Region ();
                                native_regions[i] = regions[i].NativeObject;
                        }
                        
                        Status status = GDIPlus.GdipMeasureCharacterRanges (nativeObject, text, text.Length,
                                font.NativeObject, ref layoutRect, stringFormat.NativeObject, regcount, out native_regions[0]); 
                        GDIPlus.CheckStatus (status);                           

                        return regions;                                                 
                }

                private unsafe SizeF GdipMeasureString (IntPtr graphics, string text, Font font, ref RectangleF layoutRect,
                        IntPtr stringFormat)
                {
                        if ((text == null) || (text.Length == 0))
                                return SizeF.Empty;

                        if (font == null)
                                throw new ArgumentNullException ("font");

                        RectangleF boundingBox = new RectangleF ();

                        Status status = GDIPlus.GdipMeasureString (nativeObject, text, text.Length, font.NativeObject, 
                                ref layoutRect, stringFormat, out boundingBox, null, null);
                        GDIPlus.CheckStatus (status);

                        return new SizeF (boundingBox.Width, boundingBox.Height);
                }

                public SizeF MeasureString (string text, Font font)
                {
                        return MeasureString (text, font, SizeF.Empty);
                }

                public SizeF MeasureString (string text, Font font, SizeF layoutArea)
                {
                        RectangleF rect = new RectangleF (0, 0, layoutArea.Width, layoutArea.Height);
                        return GdipMeasureString (nativeObject, text, font, ref rect, IntPtr.Zero);
                }

                public SizeF MeasureString (string text, Font font, int width)
                {                               
                        RectangleF rect = new RectangleF (0, 0, width, Int32.MaxValue);
                        return GdipMeasureString (nativeObject, text, font, ref rect, IntPtr.Zero);
                }

                public SizeF MeasureString (string text, Font font, SizeF layoutArea, StringFormat stringFormat)
                {
                        RectangleF rect = new RectangleF (0, 0, layoutArea.Width, layoutArea.Height);
                        IntPtr format = (stringFormat == null) ? IntPtr.Zero : stringFormat.NativeObject;
                        return GdipMeasureString (nativeObject, text, font, ref rect, format);
                }

                public SizeF MeasureString (string text, Font font, int width, StringFormat format)
                {
                        RectangleF rect = new RectangleF (0, 0, width, Int32.MaxValue);
                        IntPtr stringFormat = (format == null) ? IntPtr.Zero : format.NativeObject;
                        return GdipMeasureString (nativeObject, text, font, ref rect, stringFormat);
                }

                public SizeF MeasureString (string text, Font font, PointF origin, StringFormat stringFormat)
                {
                        RectangleF rect = new RectangleF (origin.X, origin.Y, 0, 0);
                        IntPtr format = (stringFormat == null) ? IntPtr.Zero : stringFormat.NativeObject;
                        return GdipMeasureString (nativeObject, text, font, ref rect, format);
                }

                public SizeF MeasureString (string text, Font font, SizeF layoutArea, StringFormat stringFormat, 
                        out int charactersFitted, out int linesFilled)
                {       
                        charactersFitted = 0;
                        linesFilled = 0;

                        if ((text == null) || (text.Length == 0))
                                return SizeF.Empty;

                        if (font == null)
                                throw new ArgumentNullException ("font");

                        RectangleF boundingBox = new RectangleF ();
                        RectangleF rect = new RectangleF (0, 0, layoutArea.Width, layoutArea.Height);

                        IntPtr format = (stringFormat == null) ? IntPtr.Zero : stringFormat.NativeObject;

                        unsafe {
                                fixed (int* pc = &charactersFitted, pl = &linesFilled) {
                                        Status status = GDIPlus.GdipMeasureString (nativeObject, text, text.Length, 
                                        font.NativeObject, ref rect, format, out boundingBox, pc, pl);
                                        GDIPlus.CheckStatus (status);
                                }
                        }
                        return new SizeF (boundingBox.Width, boundingBox.Height);
                }

                public void MultiplyTransform (Matrix matrix)
                {
                        MultiplyTransform (matrix, MatrixOrder.Prepend);
                }

                public void MultiplyTransform (Matrix matrix, MatrixOrder order)
                {
                        if (matrix == null)
                                throw new ArgumentNullException ("matrix");

                        Status status = GDIPlus.GdipMultiplyWorldTransform (nativeObject, matrix.nativeMatrix, order);
                        GDIPlus.CheckStatus (status);
                }

                [EditorBrowsable (EditorBrowsableState.Advanced)]
                [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
                public void ReleaseHdc (IntPtr hdc)
                {
                        ReleaseHdcInternal (hdc);
                }

#if NET_2_0
                [SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
                public void ReleaseHdc ()
                {
                        ReleaseHdcInternal (deviceContextHdc);
                }
#endif

                [MonoLimitation ("Can only be used when hdc was provided by Graphics.GetHdc() method")]
#if NET_2_0
                [EditorBrowsable (EditorBrowsableState.Never)]
#else
                [EditorBrowsable (EditorBrowsableState.Advanced)]
#endif
                [SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
                public void ReleaseHdcInternal (IntPtr hdc)
                {
                        Status status = Status.InvalidParameter;
                        if (hdc == deviceContextHdc) {
                                status = GDIPlus.GdipReleaseDC (nativeObject, deviceContextHdc);
                                deviceContextHdc = IntPtr.Zero;
                        }
                        GDIPlus.CheckStatus (status);
                }
                
                public void ResetClip ()
                {
                        Status status = GDIPlus.GdipResetClip (nativeObject);
                        GDIPlus.CheckStatus (status);
                }

                public void ResetTransform ()
                {
                        Status status = GDIPlus.GdipResetWorldTransform (nativeObject);
                        GDIPlus.CheckStatus (status);
                }

                public void Restore (GraphicsState gstate)
                {                       
                        // the possible NRE thrown by gstate.nativeState match MS behaviour
                        Status status = GDIPlus.GdipRestoreGraphics (nativeObject, gstate.nativeState);
                        GDIPlus.CheckStatus (status);
                }

                public void RotateTransform (float angle)
                {
                        RotateTransform (angle, MatrixOrder.Prepend);
                }

                public void RotateTransform (float angle, MatrixOrder order)
                {
                        Status status = GDIPlus.GdipRotateWorldTransform (nativeObject, angle, order);
                        GDIPlus.CheckStatus (status);
                }

                public GraphicsState Save ()
                {                                               
                        uint saveState;
                        Status status = GDIPlus.GdipSaveGraphics (nativeObject, out saveState);
                        GDIPlus.CheckStatus (status);

                        GraphicsState state = new GraphicsState ();
                        state.nativeState = saveState;
                        return state;
                }

                public void ScaleTransform (float sx, float sy)
                {
                        ScaleTransform (sx, sy, MatrixOrder.Prepend);
                }

                public void ScaleTransform (float sx, float sy, MatrixOrder order)
                {
                        Status status = GDIPlus.GdipScaleWorldTransform (nativeObject, sx, sy, order);
                        GDIPlus.CheckStatus (status);
                }

                
                public void SetClip (RectangleF rect)
                {
                        SetClip (rect, CombineMode.Replace);
                }

                
                public void SetClip (GraphicsPath path)
                {
                        SetClip (path, CombineMode.Replace);
                }

                
                public void SetClip (Rectangle rect)
                {
                        SetClip (rect, CombineMode.Replace);
                }

                
                public void SetClip (Graphics g)
                {
                        SetClip (g, CombineMode.Replace);
                }

                
                public void SetClip (Graphics g, CombineMode combineMode)
                {
                        if (g == null)
                                throw new ArgumentNullException ("g");
                        
                        Status status = GDIPlus.GdipSetClipGraphics (nativeObject, g.NativeObject, combineMode);
                        GDIPlus.CheckStatus (status);
                }

                
                public void SetClip (Rectangle rect, CombineMode combineMode)
                {
                        Status status = GDIPlus.GdipSetClipRectI (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, combineMode);
                        GDIPlus.CheckStatus (status);
                }

                
                public void SetClip (RectangleF rect, CombineMode combineMode)
                {
                        Status status = GDIPlus.GdipSetClipRect (nativeObject, rect.X, rect.Y, rect.Width, rect.Height, combineMode);
                        GDIPlus.CheckStatus (status);
                }

                
                public void SetClip (Region region, CombineMode combineMode)
                {
                        if (region == null)
                                throw new ArgumentNullException ("region");
                        Status status =   GDIPlus.GdipSetClipRegion(nativeObject,  region.NativeObject, combineMode); 
                        GDIPlus.CheckStatus (status);
                }

                
                public void SetClip (GraphicsPath path, CombineMode combineMode)
                {
                        if (path == null)
                                throw new ArgumentNullException ("path");
                        Status status = GDIPlus.GdipSetClipPath (nativeObject, path.NativeObject, combineMode);
                        GDIPlus.CheckStatus (status);
                }

                
                public void TransformPoints (CoordinateSpace destSpace, CoordinateSpace srcSpace, PointF [] pts)
                {
                        if (pts == null)
                                throw new ArgumentNullException ("pts");

                        IntPtr ptrPt =  GDIPlus.FromPointToUnManagedMemory (pts);
            
                        Status status = GDIPlus.GdipTransformPoints (nativeObject, destSpace, srcSpace,  ptrPt, pts.Length);
                        GDIPlus.CheckStatus (status);
                        
                        GDIPlus.FromUnManagedMemoryToPoint (ptrPt, pts);
                }


                public void TransformPoints (CoordinateSpace destSpace, CoordinateSpace srcSpace, Point [] pts)
                {                                               
                        if (pts == null)
                                throw new ArgumentNullException ("pts");
                        IntPtr ptrPt =  GDIPlus.FromPointToUnManagedMemoryI (pts);
            
                        Status status = GDIPlus.GdipTransformPointsI (nativeObject, destSpace, srcSpace, ptrPt, pts.Length);
                        GDIPlus.CheckStatus (status);
                        
                        GDIPlus.FromUnManagedMemoryToPointI (ptrPt, pts);
                }

                
                public void TranslateClip (int dx, int dy)
                {
                        Status status = GDIPlus.GdipTranslateClipI (nativeObject, dx, dy);
                        GDIPlus.CheckStatus (status);
                }

                
                public void TranslateClip (float dx, float dy)
                {
                        Status status = GDIPlus.GdipTranslateClip (nativeObject, dx, dy);
                        GDIPlus.CheckStatus (status);
                }

                public void TranslateTransform (float dx, float dy)
                {
                        TranslateTransform (dx, dy, MatrixOrder.Prepend);
                }

                
                public void TranslateTransform (float dx, float dy, MatrixOrder order)
                {                       
                        Status status = GDIPlus.GdipTranslateWorldTransform (nativeObject, dx, dy, order);
                        GDIPlus.CheckStatus (status);
                }

                public Region Clip {
                        get {
                                Region reg = new Region();
                                Status status = GDIPlus.GdipGetClip (nativeObject, reg.NativeObject);
                                GDIPlus.CheckStatus (status);
                                return reg;                             
                        }
                        set {
                                SetClip (value, CombineMode.Replace);
                        }
                }

                public RectangleF ClipBounds {
                        get {
                                RectangleF rect = new RectangleF ();
                                Status status = GDIPlus.GdipGetClipBounds (nativeObject, out rect);
                                GDIPlus.CheckStatus (status);
                                return rect;
                        }
                }

                public CompositingMode CompositingMode {
                        get {
                                CompositingMode mode;
                                Status status = GDIPlus.GdipGetCompositingMode (nativeObject, out mode);
                                GDIPlus.CheckStatus (status);

                                return mode;
                        }
                        set {
                                Status status = GDIPlus.GdipSetCompositingMode (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }

                }

                public CompositingQuality CompositingQuality {
                        get {
                                CompositingQuality quality;

                                Status status = GDIPlus.GdipGetCompositingQuality (nativeObject, out quality);
                                GDIPlus.CheckStatus (status);
                                return quality;
                        }
                        set {
                                Status status = GDIPlus.GdipSetCompositingQuality (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public float DpiX {
                        get {
                                float x;

                                Status status = GDIPlus.GdipGetDpiX (nativeObject, out x);
                                GDIPlus.CheckStatus (status);
                                return x;
                        }
                }

                public float DpiY {
                        get {
                                float y;

                                Status status = GDIPlus.GdipGetDpiY (nativeObject, out y);
                                GDIPlus.CheckStatus (status);
                                return y;
                        }
                }

                public InterpolationMode InterpolationMode {
                        get {                           
                                InterpolationMode imode = InterpolationMode.Invalid;
                                Status status = GDIPlus.GdipGetInterpolationMode (nativeObject, out imode);
                                GDIPlus.CheckStatus (status);
                                return imode;
                        }
                        set {
                                Status status = GDIPlus.GdipSetInterpolationMode (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public bool IsClipEmpty {
                        get {
                                bool isEmpty = false;

                                Status status = GDIPlus.GdipIsClipEmpty (nativeObject, out isEmpty);
                                GDIPlus.CheckStatus (status);
                                return isEmpty;
                        }
                }

                public bool IsVisibleClipEmpty {
                        get {
                                bool isEmpty = false;

                                Status status = GDIPlus.GdipIsVisibleClipEmpty (nativeObject, out isEmpty);
                                GDIPlus.CheckStatus (status);
                                return isEmpty;
                        }
                }

                public float PageScale {
                        get {
                                float scale;

                                Status status = GDIPlus.GdipGetPageScale (nativeObject, out scale);
                                GDIPlus.CheckStatus (status);
                                return scale;
                        }
                        set {
                                Status status = GDIPlus.GdipSetPageScale (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public GraphicsUnit PageUnit {
                        get {
                                GraphicsUnit unit;
                                
                                Status status = GDIPlus.GdipGetPageUnit (nativeObject, out unit);
                                GDIPlus.CheckStatus (status);
                                return unit;
                        }
                        set {
                                Status status = GDIPlus.GdipSetPageUnit (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                [MonoTODO ("This property does not do anything when used with libgdiplus.")]
                public PixelOffsetMode PixelOffsetMode {
                        get {
                                PixelOffsetMode pixelOffset = PixelOffsetMode.Invalid;
                                
                                Status status = GDIPlus.GdipGetPixelOffsetMode (nativeObject, out pixelOffset);
                                GDIPlus.CheckStatus (status);
                                return pixelOffset;
                        }
                        set {
                                Status status = GDIPlus.GdipSetPixelOffsetMode (nativeObject, value); 
                                GDIPlus.CheckStatus (status);
                        }
                }

                public Point RenderingOrigin {
                        get {
                                int x, y;
                                Status status = GDIPlus.GdipGetRenderingOrigin (nativeObject, out x, out y);
                                GDIPlus.CheckStatus (status);
                                return new Point (x, y);
                        }

                        set {
                                Status status = GDIPlus.GdipSetRenderingOrigin (nativeObject, value.X, value.Y);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public SmoothingMode SmoothingMode {
                        get {
                                SmoothingMode mode = SmoothingMode.Invalid;

                                Status status = GDIPlus.GdipGetSmoothingMode (nativeObject, out mode);
                                GDIPlus.CheckStatus (status);
                                return mode;
                        }

                        set {
                                Status status = GDIPlus.GdipSetSmoothingMode (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                [MonoTODO ("This property does not do anything when used with libgdiplus.")]
                public int TextContrast {
                        get {   
                                int contrast;
                                        
                                Status status = GDIPlus.GdipGetTextContrast (nativeObject, out contrast);
                                GDIPlus.CheckStatus (status);
                                return contrast;
                        }

                        set {
                                Status status = GDIPlus.GdipSetTextContrast (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public TextRenderingHint TextRenderingHint {
                        get {
                                TextRenderingHint hint;

                                Status status = GDIPlus.GdipGetTextRenderingHint (nativeObject, out hint);
                                GDIPlus.CheckStatus (status);
                                return hint;        
                        }

                        set {
                                Status status = GDIPlus.GdipSetTextRenderingHint (nativeObject, value);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public Matrix Transform {
                        get {
                                Matrix matrix = new Matrix ();
                                Status status = GDIPlus.GdipGetWorldTransform (nativeObject, matrix.nativeMatrix);
                                GDIPlus.CheckStatus (status);
                                return matrix;
                        }
                        set {
                                if (value == null)
                                        throw new ArgumentNullException ("value");
                                
                                Status status = GDIPlus.GdipSetWorldTransform (nativeObject, value.nativeMatrix);
                                GDIPlus.CheckStatus (status);
                        }
                }

                public RectangleF VisibleClipBounds {
                        get {
                                RectangleF rect;
                                        
                                Status status = GDIPlus.GdipGetVisibleClipBounds (nativeObject, out rect);
                                GDIPlus.CheckStatus (status);
                                return rect;
                        }
                }

#if NET_2_0
                [MonoTODO]
                [EditorBrowsable (EditorBrowsableState.Never)]
                public object GetContextInfo ()
                {
                        // only known source of information @ http://blogs.wdevs.com/jdunlap/Default.aspx
                        throw new NotImplementedException ();
                }
#endif
        }
}