IMessageFilter Interface (System.Windows.Forms)

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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

IMessageFilter Interface

Defines a message filter interface.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)

Syntax

Visual Basic (Declaration)

Public Interface IMessageFilter

Visual Basic (Usage)

Dim instance As IMessageFilter

public interface IMessageFilter

Visual C++

public interface class IMessageFilter

JScript

public interface IMessageFilter

Remarks

This interface allows an application to capture a message before it is dispatched to a control or form.

A class that implements the IMessageFilter interface can be added to the application's message pump to filter out a message or perform other operations before the message is dispatched to a form or control. To add the message filter to an application's message pump, use the AddMessageFilter method in the Application class.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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, 2.0, 1.1, 1.0

Reference

IMessageFilter Members

System.Windows.Forms Namespace

IMessageFilter

Application

AddMessageFilter