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HwndSource.IsDisposed Property

Gets a value that indicates whether Dispose has been called on this HwndSource.

Namespace:  System.Windows.Interop
Assembly:  PresentationCore (in PresentationCore.dll)

public override bool IsDisposed { get; }

Property Value

Type: System.Boolean
true if the object has had Dispose called on it; otherwise, false.

Dispose initiates related cleanup work for the HWND. If Dispose is called through a thread that is different from the main UI thread, the cleanup work may be deferred until it can be posted to the main UI thread. The Disposed event is raised and the value of IsDisposed becomes false as soon as Dispose is called. During this time, if you call Dispose again, Dispose raises an exception.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.