HwndSourceHook Delegate

HwndSourceHook Delegate

Represents the method that handles Win32 window messages.

Namespace: System.Windows.Interop
Assembly: PresentationCore (in presentationcore.dll)

public delegate IntPtr HwndSourceHook (
	IntPtr hwnd,
	int msg,
	IntPtr wParam,
	IntPtr lParam,
	ref bool handled
)
/** @delegate */
public delegate IntPtr HwndSourceHook (
	IntPtr hwnd, 
	int msg, 
	IntPtr wParam, 
	IntPtr lParam, 
	/** @ref */ boolean handled
)
In XAML, you can use delegates but you cannot define your own.

Parameters

hwnd

The window handle.

msg

The message ID.

wParam

The message's wParam value.

lParam

The message's lParam value.

handled

A value that indicates whether the message was handled. Set the value to true if the message was handled; otherwise, false.

Return Value

The appropriate return value depends on the particular message. See the message documentation details for the Win32 message being handled.

Use the AddHook method to register this handler to receive messages.

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

Community Additions

ADD
Show:
© 2016 Microsoft