DispatcherOperationCallback Delegate

Represents a delegate to use for dispatcher operations.

Namespace:  System.Windows.Threading
Assembly:  WindowsBase (in WindowsBase.dll)

public delegate Object DispatcherOperationCallback(
	Object arg
)

Parameters

arg
Type: System.Object
An argument passed to the callback.

Return Value

Type: System.Object
The object returned by the callback.

It is not necessary to use this delegate for dispatcher operations, but DispatcherOperationCallback and SendOrPostCallback use dynamic invoking.

Partial Trust applications do not support dynamic invoking, so you must use either DispatcherOperationCallback or SendOrPostCallback if the application is going to be running in Partial Trust.

.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.
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