Form.ProcessKeyPreview Method (System.Windows.Forms)

ProcessKeyPreview Method

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

Form..::.ProcessKeyPreview Method

This member overrides Control..::.ProcessKeyPreview(Message%), and more complete documentation might be available in that topic.

Previews a keyboard message.

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

Syntax

Visual Basic

<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
Protected Overrides Function ProcessKeyPreview ( _
    ByRef m As Message _
) As Boolean

[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
protected override bool ProcessKeyPreview(
    ref Message m
)

Visual C++

[SecurityPermissionAttribute(SecurityAction::LinkDemand, Flags = SecurityPermissionFlag::UnmanagedCode)]
protected:
virtual bool ProcessKeyPreview(
    Message% m
) override

[<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)>]
abstract ProcessKeyPreview : 
        m:Message byref -> bool 
[<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)>]
override ProcessKeyPreview : 
        m:Message byref -> bool

Parameters

m: Type: System.Windows.Forms..::.Message%
A Message, passed by reference, that represents the window message to process.

Return Value

Type: System..::.Boolean
true if the message was processed by the control; otherwise, false.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

Form Class

System.Windows.Forms Namespace