mcs/class/corlib/System/Console.cs

   1 //
   2 // System.Console.cs
   3 //
   4 // Author:
   5 //      Dietmar Maurer (dietmar@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) Ximian, Inc.  http://www.ximian.com
   9 // (C) 2004,2005 Novell, Inc. (http://www.novell.com)
  10 // Copyright 2013 Xamarin Inc. (http://www.xamarin.com)
  11
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Diagnostics;
  33 using System.IO;
  34 using System.Runtime.CompilerServices;
  35 using System.Runtime.InteropServices;
  36 using System.Security;
  37 using System.Security.Permissions;
  38 using System.Text;
  39
  40 namespace System
  41 {
  42         public static partial class Console
  43         {
  44 #if !NET_2_1
  45                 private class WindowsConsole
  46                 {
  47                         public static bool ctrlHandlerAdded = false;
  48                         private delegate bool WindowsCancelHandler (int keyCode);
  49                         private static WindowsCancelHandler cancelHandler = new WindowsCancelHandler (DoWindowsConsoleCancelEvent);
  50
  51                         [DllImport ("kernel32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
  52                         private static extern int GetConsoleCP ();
  53                         [DllImport ("kernel32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
  54                         private static extern int GetConsoleOutputCP ();
  55
  56                         [DllImport ("kernel32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
  57                         private static extern bool SetConsoleCtrlHandler (WindowsCancelHandler handler, bool addHandler);
  58
  59                         // Only call the event handler if Control-C was pressed (code == 0), nothing else
  60                         private static bool DoWindowsConsoleCancelEvent (int keyCode)
  61                         {
  62                                 if (keyCode == 0)
  63                                         DoConsoleCancelEvent ();
  64                                 return keyCode == 0;
  65                         }
  66
  67                         [MethodImpl (MethodImplOptions.NoInlining)]
  68                         public static int GetInputCodePage ()
  69                         {
  70                                 return GetConsoleCP ();
  71                         }
  72
  73                         [MethodImpl (MethodImplOptions.NoInlining)]
  74                         public static int GetOutputCodePage ()
  75                         {
  76                                 return GetConsoleOutputCP ();
  77                         }
  78
  79                         public static void AddCtrlHandler ()
  80                         {
  81                                 SetConsoleCtrlHandler (cancelHandler, true);
  82                                 ctrlHandlerAdded = true;
  83                         }
  84
  85                         public static void RemoveCtrlHandler ()
  86                         {
  87                                 SetConsoleCtrlHandler (cancelHandler, false);
  88                                 ctrlHandlerAdded = false;
  89                         }
  90                 }
  91 #endif
  92
  93                 internal static TextWriter stdout;
  94                 private static TextWriter stderr;
  95                 private static TextReader stdin;
  96
  97                 static Console ()
  98                 {
  99                         if (Environment.IsRunningOnWindows) {
 100                                 //
 101                                 // On Windows, follow the Windows tradition
 102                                 //
 103 #if NET_2_1
 104                                 // should never happen since Moonlight does not run on windows
 105                                 inputEncoding = outputEncoding = Encoding.Default;
 106 #else
 107                                 try {
 108                                         inputEncoding = Encoding.GetEncoding (WindowsConsole.GetInputCodePage ());
 109                                         outputEncoding = Encoding.GetEncoding (WindowsConsole.GetOutputCodePage ());
 110                                         // ArgumentException and NotSupportedException can be thrown as well
 111                                 } catch {
 112                                         // FIXME: I18N assemblies are not available when compiling mcs
 113                                         // Use Latin 1 as it is fast and UTF-8 is never used as console code page
 114                                         inputEncoding = outputEncoding = Encoding.Default;
 115                                 }
 116 #endif
 117                         } else {
 118                                 //
 119                                 // On Unix systems (128), do not output the
 120                                 // UTF-8 ZWNBSP (zero-width non-breaking space).
 121                                 //
 122                                 int code_page = 0;
 123                                 EncodingHelper.InternalCodePage (ref code_page);
 124
 125                                 if (code_page != -1 && ((code_page & 0x0fffffff) == 3 // UTF8Encoding.UTF8_CODE_PAGE
 126                                         || ((code_page & 0x10000000) != 0)))
 127                                         inputEncoding = outputEncoding = EncodingHelper.UTF8Unmarked;
 128                                 else
 129                                         inputEncoding = outputEncoding = Encoding.Default;
 130                         }
 131
 132                         SetupStreams (inputEncoding, outputEncoding);
 133                 }
 134
 135                 static void SetupStreams (Encoding inputEncoding, Encoding outputEncoding)
 136                 {
 137 #if !NET_2_1
 138                         if (!Environment.IsRunningOnWindows && ConsoleDriver.IsConsole) {
 139                                 stdin = new CStreamReader (OpenStandardInput (0), inputEncoding);
 140                                 stdout = TextWriter.Synchronized (new CStreamWriter (OpenStandardOutput (0), outputEncoding, true) { AutoFlush = true });
 141                                 stderr = TextWriter.Synchronized (new CStreamWriter (OpenStandardError (0), outputEncoding, true) { AutoFlush = true });
 142                         } else
 143 #endif
 144                         {
 145                                 stdin = TextReader.Synchronized (new UnexceptionalStreamReader (OpenStandardInput (0), inputEncoding));
 146
 147 #if MONOTOUCH
 148                                 stdout = new NSLogWriter ();
 149                                 stderr = new NSLogWriter ();
 150 #else
 151                                 stdout = TextWriter.Synchronized (new UnexceptionalStreamWriter (OpenStandardOutput (0), outputEncoding) { AutoFlush = true });
 152                                 stderr = TextWriter.Synchronized (new UnexceptionalStreamWriter (OpenStandardError (0), outputEncoding) { AutoFlush = true });
 153
 154 #if MONODROID
 155                                 if (LogcatTextWriter.IsRunningOnAndroid ()) {
 156                                         stdout = TextWriter.Synchronized (new LogcatTextWriter ("mono-stdout", stdout));
 157                                         stderr = TextWriter.Synchronized (new LogcatTextWriter ("mono-stderr", stderr));
 158                                 }
 159 #endif // MONODROID
 160 #endif // MONOTOUCH
 161                         }
 162
 163                         GC.SuppressFinalize (stdout);
 164                         GC.SuppressFinalize (stderr);
 165                         GC.SuppressFinalize (stdin);
 166                 }
 167
 168                 public static TextWriter Error {
 169                         get {
 170                                 return stderr;
 171                         }
 172                 }
 173
 174                 public static TextWriter Out {
 175                         get {
 176                                 return stdout;
 177                         }
 178                 }
 179
 180                 public static TextReader In {
 181                         get {
 182                                 return stdin;
 183                         }
 184                 }
 185
 186                 private static Stream Open (IntPtr handle, FileAccess access, int bufferSize)
 187                 {
 188                         try {
 189                                 // TODO: Should use __ConsoleStream from reference sources
 190                                 return new FileStream (handle, access, false, bufferSize, false, true);
 191                         } catch (IOException) {
 192                                 return Stream.Null;
 193                         }
 194                 }
 195
 196                 public static Stream OpenStandardError ()
 197                 {
 198                         return OpenStandardError (0);
 199                 }
 200
 201                 // calling any FileStream constructor with a handle normally
 202                 // requires permissions UnmanagedCode permissions. In this
 203                 // case we assert this permission so the console can be used
 204                 // in partial trust (i.e. without having UnmanagedCode).
 205                 [SecurityPermission (SecurityAction.Assert, UnmanagedCode = true)]
 206                 public static Stream OpenStandardError (int bufferSize)
 207                 {
 208                         return Open (MonoIO.ConsoleError, FileAccess.Write, bufferSize);
 209                 }
 210
 211                 public static Stream OpenStandardInput ()
 212                 {
 213                         return OpenStandardInput (0);
 214                 }
 215
 216                 // calling any FileStream constructor with a handle normally
 217                 // requires permissions UnmanagedCode permissions. In this
 218                 // case we assert this permission so the console can be used
 219                 // in partial trust (i.e. without having UnmanagedCode).
 220                 [SecurityPermission (SecurityAction.Assert, UnmanagedCode = true)]
 221                 public static Stream OpenStandardInput (int bufferSize)
 222                 {
 223                         return Open (MonoIO.ConsoleInput, FileAccess.Read, bufferSize);
 224                 }
 225
 226                 public static Stream OpenStandardOutput ()
 227                 {
 228                         return OpenStandardOutput (0);
 229                 }
 230
 231                 // calling any FileStream constructor with a handle normally
 232                 // requires permissions UnmanagedCode permissions. In this
 233                 // case we assert this permission so the console can be used
 234                 // in partial trust (i.e. without having UnmanagedCode).
 235                 [SecurityPermission (SecurityAction.Assert, UnmanagedCode = true)]
 236                 public static Stream OpenStandardOutput (int bufferSize)
 237                 {
 238                         return Open (MonoIO.ConsoleOutput, FileAccess.Write, bufferSize);
 239                 }
 240
 241                 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
 242                 public static void SetError (TextWriter newError)
 243                 {
 244                         if (newError == null)
 245                                 throw new ArgumentNullException ("newError");
 246
 247                         stderr = newError;
 248                 }
 249
 250                 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
 251                 public static void SetIn (TextReader newIn)
 252                 {
 253                         if (newIn == null)
 254                                 throw new ArgumentNullException ("newIn");
 255
 256                         stdin = newIn;
 257                 }
 258
 259                 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
 260                 public static void SetOut (TextWriter newOut)
 261                 {
 262                         if (newOut == null)
 263                                 throw new ArgumentNullException ("newOut");
 264
 265                         stdout = newOut;
 266                 }
 267
 268                 public static void Write (bool value)
 269                 {
 270                         stdout.Write (value);
 271                 }
 272
 273                 public static void Write (char value)
 274                 {
 275                         stdout.Write (value);
 276                 }
 277
 278                 public static void Write (char[] buffer)
 279                 {
 280                         stdout.Write (buffer);
 281                 }
 282
 283                 public static void Write (decimal value)
 284                 {
 285                         stdout.Write (value);
 286                 }
 287
 288                 public static void Write (double value)
 289                 {
 290                         stdout.Write (value);
 291                 }
 292
 293                 public static void Write (int value)
 294                 {
 295                         stdout.Write (value);
 296                 }
 297
 298                 public static void Write (long value)
 299                 {
 300                         stdout.Write (value);
 301                 }
 302
 303                 public static void Write (object value)
 304                 {
 305                         stdout.Write (value);
 306                 }
 307
 308                 public static void Write (float value)
 309                 {
 310                         stdout.Write (value);
 311                 }
 312
 313                 public static void Write (string value)
 314                 {
 315                         stdout.Write (value);
 316                 }
 317
 318                 [CLSCompliant (false)]
 319                 public static void Write (uint value)
 320                 {
 321                         stdout.Write (value);
 322                 }
 323
 324                 [CLSCompliant (false)]
 325                 public static void Write (ulong value)
 326                 {
 327                         stdout.Write (value);
 328                 }
 329
 330                 public static void Write (string format, object arg0)
 331                 {
 332                         stdout.Write (format, arg0);
 333                 }
 334
 335                 public static void Write (string format, params object[] arg)
 336                 {
 337                         if (arg == null)
 338                                 stdout.Write (format);
 339                         else
 340                                 stdout.Write (format, arg);
 341                 }
 342
 343                 public static void Write (char[] buffer, int index, int count)
 344                 {
 345                         stdout.Write (buffer, index, count);
 346                 }
 347
 348                 public static void Write (string format, object arg0, object arg1)
 349                 {
 350                         stdout.Write (format, arg0, arg1);
 351                 }
 352
 353                 public static void Write (string format, object arg0, object arg1, object arg2 )
 354                 {
 355                         stdout.Write (format, arg0, arg1, arg2);
 356                 }
 357
 358                 [CLSCompliant (false)]
 359                 public static void Write (string format, object arg0, object arg1, object arg2, object arg3, __arglist)
 360                 {
 361                         ArgIterator iter = new ArgIterator (__arglist);
 362                         int argCount = iter.GetRemainingCount();
 363
 364                         object[] args = new object [argCount + 4];
 365                         args [0] = arg0;
 366                         args [1] = arg1;
 367                         args [2] = arg2;
 368                         args [3] = arg3;
 369                         for (int i = 0; i < argCount; i++) {
 370                                 TypedReference typedRef = iter.GetNextArg ();
 371                                 args [i + 4] = TypedReference.ToObject (typedRef);
 372                         }
 373
 374                         stdout.Write (String.Format (format, args));
 375                 }
 376
 377                 public static void WriteLine ()
 378                 {
 379                         stdout.WriteLine ();
 380                 }
 381
 382                 public static void WriteLine (bool value)
 383                 {
 384                         stdout.WriteLine (value);
 385                 }
 386
 387                 public static void WriteLine (char value)
 388                 {
 389                         stdout.WriteLine (value);
 390                 }
 391
 392                 public static void WriteLine (char[] buffer)
 393                 {
 394                         stdout.WriteLine (buffer);
 395                 }
 396
 397                 public static void WriteLine (decimal value)
 398                 {
 399                         stdout.WriteLine (value);
 400                 }
 401
 402                 public static void WriteLine (double value)
 403                 {
 404                         stdout.WriteLine (value);
 405                 }
 406
 407                 public static void WriteLine (int value)
 408                 {
 409                         stdout.WriteLine (value);
 410                 }
 411
 412                 public static void WriteLine (long value)
 413                 {
 414                         stdout.WriteLine (value);
 415                 }
 416
 417                 public static void WriteLine (object value)
 418                 {
 419                         stdout.WriteLine (value);
 420                 }
 421
 422                 public static void WriteLine (float value)
 423                 {
 424                         stdout.WriteLine (value);
 425                 }
 426
 427                 public static void WriteLine (string value)
 428                 {
 429                         stdout.WriteLine (value);
 430                 }
 431
 432                 [CLSCompliant (false)]
 433                 public static void WriteLine (uint value)
 434                 {
 435                         stdout.WriteLine (value);
 436                 }
 437
 438                 [CLSCompliant (false)]
 439                 public static void WriteLine (ulong value)
 440                 {
 441                         stdout.WriteLine (value);
 442                 }
 443
 444                 public static void WriteLine (string format, object arg0)
 445                 {
 446                         stdout.WriteLine (format, arg0);
 447                 }
 448
 449                 public static void WriteLine (string format, params object[] arg)
 450                 {
 451                         if (arg == null)
 452                                 stdout.WriteLine (format);
 453                         else
 454                                 stdout.WriteLine (format, arg);
 455                 }
 456
 457                 public static void WriteLine (char[] buffer, int index, int count)
 458                 {
 459                         stdout.WriteLine (buffer, index, count);
 460                 }
 461
 462                 public static void WriteLine (string format, object arg0, object arg1)
 463                 {
 464                         stdout.WriteLine (format, arg0, arg1);
 465                 }
 466
 467                 public static void WriteLine (string format, object arg0, object arg1, object arg2)
 468                 {
 469                         stdout.WriteLine (format, arg0, arg1, arg2);
 470                 }
 471
 472                 [CLSCompliant (false)]
 473                 public static void WriteLine (string format, object arg0, object arg1, object arg2, object arg3, __arglist)
 474                 {
 475                         ArgIterator iter = new ArgIterator (__arglist);
 476                         int argCount = iter.GetRemainingCount();
 477
 478                         object[] args = new object [argCount + 4];
 479                         args [0] = arg0;
 480                         args [1] = arg1;
 481                         args [2] = arg2;
 482                         args [3] = arg3;
 483                         for (int i = 0; i < argCount; i++) {
 484                                 TypedReference typedRef = iter.GetNextArg ();
 485                                 args [i + 4] = TypedReference.ToObject (typedRef);
 486                         }
 487
 488                         stdout.WriteLine (String.Format (format, args));
 489                 }
 490
 491 #if !NET_2_1
 492                 public static int Read ()
 493                 {
 494                         if ((stdin is CStreamReader) && ConsoleDriver.IsConsole) {
 495                                 return ConsoleDriver.Read ();
 496                         } else {
 497                                 return stdin.Read ();
 498                         }
 499                 }
 500
 501                 public static string ReadLine ()
 502                 {
 503                         if ((stdin is CStreamReader) && ConsoleDriver.IsConsole) {
 504                                 return ConsoleDriver.ReadLine ();
 505                         } else {
 506                                 return stdin.ReadLine ();
 507                         }
 508                 }
 509 #else
 510                 public static int Read ()
 511                 {
 512                         return stdin.Read ();
 513                 }
 514
 515                 public static string ReadLine ()
 516                 {
 517                         return stdin.ReadLine ();
 518                 }
 519
 520 #endif
 521
 522                 // FIXME: Console should use these encodings when changed
 523                 static Encoding inputEncoding;
 524                 static Encoding outputEncoding;
 525
 526                 public static Encoding InputEncoding {
 527                         get { return inputEncoding; }
 528                         set {
 529                                 inputEncoding = value;
 530                                 SetupStreams (inputEncoding, outputEncoding);
 531                         }
 532                 }
 533
 534                 public static Encoding OutputEncoding {
 535                         get { return outputEncoding; }
 536                         set {
 537                                 outputEncoding = value;
 538                                 SetupStreams (inputEncoding, outputEncoding);
 539                         }
 540                 }
 541
 542 #if !NET_2_1
 543                 public static ConsoleColor BackgroundColor {
 544                         get { return ConsoleDriver.BackgroundColor; }
 545                         set { ConsoleDriver.BackgroundColor = value; }
 546                 }
 547
 548                 public static int BufferHeight {
 549                         get { return ConsoleDriver.BufferHeight; }
 550                         [MonoLimitation ("Implemented only on Windows")]
 551                         set { ConsoleDriver.BufferHeight = value; }
 552                 }
 553
 554                 public static int BufferWidth {
 555                         get { return ConsoleDriver.BufferWidth; }
 556                         [MonoLimitation ("Implemented only on Windows")]
 557                         set { ConsoleDriver.BufferWidth = value; }
 558                 }
 559
 560                 [MonoLimitation ("Implemented only on Windows")]
 561                 public static bool CapsLock {
 562                         get { return ConsoleDriver.CapsLock; }
 563                 }
 564
 565                 public static int CursorLeft {
 566                         get { return ConsoleDriver.CursorLeft; }
 567                         set { ConsoleDriver.CursorLeft = value; }
 568                 }
 569
 570                 public static int CursorTop {
 571                         get { return ConsoleDriver.CursorTop; }
 572                         set { ConsoleDriver.CursorTop = value; }
 573                 }
 574
 575                 public static int CursorSize {
 576                         get { return ConsoleDriver.CursorSize; }
 577                         set { ConsoleDriver.CursorSize = value; }
 578                 }
 579
 580                 public static bool CursorVisible {
 581                         get { return ConsoleDriver.CursorVisible; }
 582                         set { ConsoleDriver.CursorVisible = value; }
 583                 }
 584
 585                 public static ConsoleColor ForegroundColor {
 586                         get { return ConsoleDriver.ForegroundColor; }
 587                         set { ConsoleDriver.ForegroundColor = value; }
 588                 }
 589
 590                 public static bool KeyAvailable {
 591                         get { return ConsoleDriver.KeyAvailable; }
 592                 }
 593
 594                 public static int LargestWindowHeight {
 595                         get { return ConsoleDriver.LargestWindowHeight; }
 596                 }
 597
 598                 public static int LargestWindowWidth {
 599                         get { return ConsoleDriver.LargestWindowWidth; }
 600                 }
 601
 602                 [MonoLimitation ("Only works on windows")]
 603                 public static bool NumberLock {
 604                         get { return ConsoleDriver.NumberLock; }
 605                 }
 606
 607                 public static string Title {
 608                         get { return ConsoleDriver.Title; }
 609                         set { ConsoleDriver.Title = value; }
 610                 }
 611
 612                 public static bool TreatControlCAsInput {
 613                         get { return ConsoleDriver.TreatControlCAsInput; }
 614                         set { ConsoleDriver.TreatControlCAsInput = value; }
 615                 }
 616
 617                 [MonoLimitation ("Only works on windows")]
 618                 public static int WindowHeight {
 619                         get { return ConsoleDriver.WindowHeight; }
 620                         set { ConsoleDriver.WindowHeight = value; }
 621                 }
 622
 623                 [MonoLimitation ("Only works on windows")]
 624                 public static int WindowLeft {
 625                         get { return ConsoleDriver.WindowLeft; }
 626                         set { ConsoleDriver.WindowLeft = value; }
 627                 }
 628
 629                 [MonoLimitation ("Only works on windows")]
 630                 public static int WindowTop {
 631                         get { return ConsoleDriver.WindowTop; }
 632                         set { ConsoleDriver.WindowTop = value; }
 633                 }
 634
 635                 [MonoLimitation ("Only works on windows")]
 636                 public static int WindowWidth {
 637                         get { return ConsoleDriver.WindowWidth; }
 638                         set { ConsoleDriver.WindowWidth = value; }
 639                 }
 640
 641                 public static bool IsErrorRedirected {
 642                         get {
 643                                 return ConsoleDriver.IsErrorRedirected;
 644                         }
 645                 }
 646
 647                 public static bool IsOutputRedirected {
 648                         get {
 649                                 return ConsoleDriver.IsOutputRedirected;
 650                         }
 651                 }
 652
 653                 public static bool IsInputRedirected {
 654                         get {
 655                                 return ConsoleDriver.IsInputRedirected;
 656                         }
 657                 }
 658
 659                 public static void Beep ()
 660                 {
 661                         Beep (1000, 500);
 662                 }
 663
 664                 public static void Beep (int frequency, int duration)
 665                 {
 666                         if (frequency < 37 || frequency > 32767)
 667                                 throw new ArgumentOutOfRangeException ("frequency");
 668
 669                         if (duration <= 0)
 670                                 throw new ArgumentOutOfRangeException ("duration");
 671
 672                         ConsoleDriver.Beep (frequency, duration);
 673                 }
 674
 675                 public static void Clear ()
 676                 {
 677                         ConsoleDriver.Clear ();
 678                 }
 679
 680                 [MonoLimitation ("Implemented only on Windows")]
 681                 public static void MoveBufferArea (int sourceLeft, int sourceTop, int sourceWidth, int sourceHeight,
 682                                                 int targetLeft, int targetTop)
 683                 {
 684                         ConsoleDriver.MoveBufferArea (sourceLeft, sourceTop, sourceWidth, sourceHeight, targetLeft, targetTop);
 685                 }
 686
 687                 [MonoLimitation ("Implemented only on Windows")]
 688                 public static void MoveBufferArea (int sourceLeft, int sourceTop, int sourceWidth, int sourceHeight,
 689                                                 int targetLeft, int targetTop, Char sourceChar,
 690                                                 ConsoleColor sourceForeColor, ConsoleColor sourceBackColor)
 691                 {
 692                         ConsoleDriver.MoveBufferArea (sourceLeft, sourceTop, sourceWidth, sourceHeight, targetLeft, targetTop,
 693                                                         sourceChar, sourceForeColor, sourceBackColor);
 694                 }
 695
 696                 public static ConsoleKeyInfo ReadKey ()
 697                 {
 698                         return ReadKey (false);
 699                 }
 700
 701                 public static ConsoleKeyInfo ReadKey (bool intercept)
 702                 {
 703                         return ConsoleDriver.ReadKey (intercept);
 704                 }
 705
 706                 public static void ResetColor ()
 707                 {
 708                         ConsoleDriver.ResetColor ();
 709                 }
 710
 711                 [MonoLimitation ("Only works on windows")]
 712                 public static void SetBufferSize (int width, int height)
 713                 {
 714                         ConsoleDriver.SetBufferSize (width, height);
 715                 }
 716
 717                 public static void SetCursorPosition (int left, int top)
 718                 {
 719                         ConsoleDriver.SetCursorPosition (left, top);
 720                 }
 721
 722                 public static void SetWindowPosition (int left, int top)
 723                 {
 724                         ConsoleDriver.SetWindowPosition (left, top);
 725                 }
 726
 727                 public static void SetWindowSize (int width, int height)
 728                 {
 729                         ConsoleDriver.SetWindowSize (width, height);
 730                 }
 731
 732                 static ConsoleCancelEventHandler cancel_event;
 733                 public static event ConsoleCancelEventHandler CancelKeyPress {
 734                         add {
 735                                 if (ConsoleDriver.Initialized == false)
 736                                         ConsoleDriver.Init ();
 737
 738                                 cancel_event += value;
 739
 740                                 if (Environment.IsRunningOnWindows && !WindowsConsole.ctrlHandlerAdded)
 741                                         WindowsConsole.AddCtrlHandler();
 742                         }
 743                         remove {
 744                                 if (ConsoleDriver.Initialized == false)
 745                                         ConsoleDriver.Init ();
 746
 747                                 cancel_event -= value;
 748
 749                                 if (cancel_event == null && Environment.IsRunningOnWindows)
 750                                 {
 751                                         // Need to remove our hook if there's nothing left in the event
 752                                         if (WindowsConsole.ctrlHandlerAdded)
 753                                                 WindowsConsole.RemoveCtrlHandler();
 754                                 }
 755                         }
 756                 }
 757
 758                 delegate void InternalCancelHandler ();
 759
 760 #pragma warning disable 414
 761                 //
 762                 // Used by console-io.c
 763                 //
 764                 static readonly InternalCancelHandler cancel_handler = new InternalCancelHandler (DoConsoleCancelEvent);
 765 #pragma warning restore 414
 766
 767                 internal static void DoConsoleCancelEvent ()
 768                 {
 769                         bool exit = true;
 770                         if (cancel_event != null) {
 771                                 ConsoleCancelEventArgs args = new ConsoleCancelEventArgs (ConsoleSpecialKey.ControlC);
 772                                 Delegate [] delegates = cancel_event.GetInvocationList ();
 773                                 foreach (ConsoleCancelEventHandler d in delegates){
 774                                         try {
 775                                                 // Sender is always null here.
 776                                                 d (null, args);
 777                                         } catch {} // Ignore any exception.
 778                                 }
 779                                 exit = !args.Cancel;
 780                         }
 781
 782                         if (exit)
 783                                 Environment.Exit (58);
 784                 }
 785 #endif
 786         }
 787 }
 788