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Control.PreProcessControlMessage Method

Preprocesses keyboard or input messages within the message loop before they are dispatched.

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

public PreProcessControlState PreProcessControlMessage (
	ref Message msg
public PreProcessControlState PreProcessControlMessage (
	/** @ref */ Message msg
Not applicable.



A Message that represents the message to process.

Return Value

One of the PreProcessControlState values, depending on whether PreProcessMessage is true or false and whether IsInputKey or IsInputChar are true or false.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0