1 // Permission is hereby granted, free of charge, to any person obtaining
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2 // a copy of this software and associated documentation files (the
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3 // "Software"), to deal in the Software without restriction, including
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4 // without limitation the rights to use, copy, modify, merge, publish,
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5 // distribute, sublicense, and/or sell copies of the Software, and to
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6 // permit persons to whom the Software is furnished to do so, subject to
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7 // the following conditions:
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9 // The above copyright notice and this permission notice shall be
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10 // included in all copies or substantial portions of the Software.
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12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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20 // Copyright (c) 2007 Novell, Inc.
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24 using System.Threading;
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25 using System.ComponentModel;
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29 // Some implementation details:
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30 // http://msdn.microsoft.com/msdnmag/issues/06/06/NETMatters/default.aspx
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31 namespace System.Windows.Forms
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33 public sealed class WindowsFormsSynchronizationContext : SynchronizationContext, IDisposable
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35 private static bool auto_installed;
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36 private static Control invoke_control;
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37 private static SynchronizationContext previous_context;
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39 #region Public Constructor
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40 public WindowsFormsSynchronizationContext ()
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44 static WindowsFormsSynchronizationContext ()
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46 invoke_control = new Control ();
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47 invoke_control.CreateControl ();
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48 auto_installed = true;
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49 previous_context = SynchronizationContext.Current;
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53 #region Public Properties
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54 [EditorBrowsable (EditorBrowsableState.Advanced)]
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55 public static bool AutoInstall {
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56 get { return auto_installed; }
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57 set { auto_installed = value; }
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61 #region Public Methods
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62 public override SynchronizationContext CreateCopy ()
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64 return base.CreateCopy ();
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67 public void Dispose ()
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71 public override void Post (SendOrPostCallback d, object state)
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73 invoke_control.BeginInvoke (d, new object[] { state });
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76 public override void Send (SendOrPostCallback d, object state)
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78 invoke_control.Invoke (d, new object[] { state });
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81 public static void Uninstall ()
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83 if (previous_context == null)
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84 previous_context = new SynchronizationContext ();
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86 SynchronizationContext.SetSynchronizationContext (previous_context);
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