ComponentDispatcher.ThreadPreprocessMessage Event (System.Windows.Interop)

ThreadPreprocessMessage Event

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

ComponentDispatcher..::.ThreadPreprocessMessage Event

Occurs when the message pump receives a keyboard message.

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

Syntax

Visual Basic (Declaration)

Public Shared Event ThreadPreprocessMessage As ThreadMessageEventHandler

Visual Basic (Usage)

Dim handler As ThreadMessageEventHandler

AddHandler ComponentDispatcher.ThreadPreprocessMessage, handler

public static event ThreadMessageEventHandler ThreadPreprocessMessage

Visual C++

public:
static  event ThreadMessageEventHandler^ ThreadPreprocessMessage {
    void add (ThreadMessageEventHandler^ value);
    void remove (ThreadMessageEventHandler^ value);
}

JScript

JScript does not support events.

XAML

You cannot use this event in XAML.

Remarks

This event should be raised after ThreadFilterMessage, if that event is not handled.

.NET Framework Security

UIPermission
to access any member of this class. Associated enumeration: Unrestricted

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

Version Information

.NET Framework

Supported in: 3.5, 3.0

Reference

ComponentDispatcher Class

ComponentDispatcher Members

System.Windows.Interop Namespace

IKeyboardInputSink

RaiseThreadMessage

ThreadFilterMessage

Other Resources

Sharing Message Loops Between Win32 and WPF

WPF and Win32 Interoperation Overview