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HwndHost.WndProc Method

When overridden in a derived class, accesses the window process (handle) of the hosted child window.

Namespace: System.Windows.Interop
Assembly: PresentationFramework (in presentationframework.dll)

Protected Overridable Function WndProc ( _
	hwnd As IntPtr, _
	msg As Integer, _
	wParam As IntPtr, _
	lParam As IntPtr, _
	ByRef handled As Boolean _
) As IntPtr
Dim hwnd As IntPtr
Dim msg As Integer
Dim wParam As IntPtr
Dim lParam As IntPtr
Dim handled As Boolean
Dim returnValue As IntPtr

returnValue = Me.WndProc(hwnd, msg, wParam, lParam, handled)
protected IntPtr WndProc (
	IntPtr hwnd, 
	int msg, 
	IntPtr wParam, 
	IntPtr lParam, 
	/** @ref */ boolean handled
You cannot use methods in XAML.



The window handle of the hosted window.


The message to act upon.


Information that may be relevant to handling the message. This is typically used to store small pieces of information, such as flags.


Information that may be relevant to handling the message. This is typically used to reference an object.


Whether events resulting should be marked handled.

Security noteSecurity Note:

This type or member is not available in the Internet security zone.

Notes to Inheritors: The base implementation in HwndHost does not return a practical process, but will return IntPtr.Zero as a failsafe.

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