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IMessageFilter Interface

Definition

Defines a message filter interface.

C#
public interface IMessageFilter
Derived

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.

Methods

PreFilterMessage(Message)

Filters out a message before it is dispatched.

Applies to

Product Versions
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

See also