HANDLE_WM_NOTIFY macro

Calls a function that processes the WM_NOTIFY message.

Syntax


void HANDLE_WM_NOTIFY(
   HWND     hwnd,
   WPARAM   wParam,
   LPARAM   lParam,
   function fn
);

Parameters

hwnd

Type: HWND

A handle to the window that received WM_NOTIFY.

wParam

Type: WPARAM

The first parameter of WM_NOTIFY.

lParam

Type: LPARAM

The second parameter of WM_NOTIFY.

fn

Type: function

The function that is to process WM_NOTIFY.

Return value

Returns a value whose meaning depends on the fn parameter.

Remarks

The HANDLE_WM_NOTIFY macro is defined as follows.

#define HANDLE_WM_NOTIFY(hwnd, wParam, lParam, fn) \ 

    (fn)((hwnd), (int)(wParam), (NMHDR*)(lParam))

The macro can be used inside a dialog window procedure to simplify the calling of an application-defined function that requires an NMHDR parameter.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Commctrl.h

 

 

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