Control.DefWndProc Method (System.Windows.Forms)

DefWndProc Method

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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

Control..::.DefWndProc Method

Sends the specified message to the default window procedure.

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

Syntax

Visual Basic (Declaration)

<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
<SecurityPermissionAttribute(SecurityAction.InheritanceDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
Protected Overridable Sub DefWndProc ( _
    ByRef m As Message _
)

Visual Basic (Usage)

Dim m As Message

Me.DefWndProc(m)

[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
[SecurityPermissionAttribute(SecurityAction.InheritanceDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
protected virtual void DefWndProc(
    ref Message m
)

Visual C++

[SecurityPermissionAttribute(SecurityAction::LinkDemand, Flags = SecurityPermissionFlag::UnmanagedCode)]
[SecurityPermissionAttribute(SecurityAction::InheritanceDemand, Flags = SecurityPermissionFlag::UnmanagedCode)]
protected:
virtual void DefWndProc(
    Message% m
)

JScript

protected function DefWndProc(
    m : Message
)

Parameters

m: Type: System.Windows.Forms..::.Message%
The Windows Message to process.

Remarks

For more information about processing Windows messages, see the WindowProc function documentation in the MSDN library at http://msdn.microsoft.com/library.

.NET Framework Security

SecurityPermission
for inheriting classes to call unmanaged code. Associated enumeration: SecurityPermissionFlag..::.UnmanagedCode.
SecurityPermission
for the immediate caller to call unmanaged code. Associated enumeration: SecurityPermissionFlag..::.UnmanagedCode.

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

Control Class

Control Members

System.Windows.Forms Namespace

WndProc