HwndSourceHook Delegate

Definition

Represents the method that handles Win32 window messages.

C#
public delegate IntPtr HwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled);

Parameters

hwnd
IntPtr

The window handle.

msg
Int32

The message ID.

wParam
IntPtr

The message's wParam value.

lParam
IntPtr

The message's lParam value.

handled
Boolean

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

Return Value

IntPtr

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

Remarks

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

Extension Methods

GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to

Product Versions
.NET Framework 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

See also