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SendOrPostCallback Delegate

Represents a method to be called when a message is to be dispatched to a synchronization context.

Namespace:  System.Threading
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Delegate Sub SendOrPostCallback ( _
	state As Object _
)

Parameters

state
Type: System.Object

The object passed to the delegate.

SendOrPostCallback represents a callback method that you want to execute when a message is to be dispatched to a synchronization context. Create the delegate by passing your callback method to the SendOrPostCallback constructor. Your method must have the signature shown here.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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