Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

NativeWindow::DefWndProc Method

Invokes the default window procedure associated with this window.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public:
void DefWndProc(
	Message% m
)

Parameters

m
Type: System.Windows.Forms::Message%

The message that is currently being processed.

Typically, you only call the DefWndProc method when you are intercepting window messages and would like the default window procedure to handle the message. DefWndProc should not be called to send a window message to the window; call the Win32 SendMessage function instead.

It is an error to call DefWndProc when the Handle property is 0.

Notes to Inheritors:

Override this method in a derived class to implement generalized custom message handling for a specific native window or .NET Windows Forms Control. Custom processing can be performed before, after, or instead of a call to the base class implementation of this method, which performs standard message processing.

In contrast, adding customized message handling for an application can be accomplished through the AddMessageFilter method of the Application class.

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.