90 lines
2.7 KiB
C#
90 lines
2.7 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2007 Novell, Inc.
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//
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using System;
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using System.Threading;
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using System.ComponentModel;
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// Some implementation details:
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// http://msdn.microsoft.com/msdnmag/issues/06/06/NETMatters/default.aspx
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namespace System.Windows.Forms
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{
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public sealed class WindowsFormsSynchronizationContext : SynchronizationContext, IDisposable
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{
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private static bool auto_installed;
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private static Control invoke_control;
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private static SynchronizationContext previous_context;
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#region Public Constructor
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public WindowsFormsSynchronizationContext ()
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{
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}
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static WindowsFormsSynchronizationContext ()
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{
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invoke_control = new Control ();
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invoke_control.CreateControl ();
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auto_installed = true;
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previous_context = SynchronizationContext.Current;
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}
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#endregion
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#region Public Properties
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[EditorBrowsable (EditorBrowsableState.Advanced)]
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public static bool AutoInstall {
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get { return auto_installed; }
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set { auto_installed = value; }
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}
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#endregion
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#region Public Methods
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public override SynchronizationContext CreateCopy ()
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{
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return base.CreateCopy ();
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}
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public void Dispose ()
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{
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}
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public override void Post (SendOrPostCallback d, object state)
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{
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invoke_control.BeginInvoke (d, new object[] { state });
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}
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public override void Send (SendOrPostCallback d, object state)
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{
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invoke_control.Invoke (d, new object[] { state });
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}
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public static void Uninstall ()
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{
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if (previous_context == null)
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previous_context = new SynchronizationContext ();
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SynchronizationContext.SetSynchronizationContext (previous_context);
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}
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#endregion
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}
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}
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