FORWARD_WM_NOTIFY macro (commctrl.h)

Sends or posts the WM_NOTIFY message.

Syntax

VOID FORWARD_WM_NOTIFY(
   HWND     hwnd,
   int      idFrom,
   NMHDR    *pnmhdr,
   function fn
);

Parameters

hwnd

Type: HWND

A handle to the window that receives the WM_NOTIFY message.

idFrom

Type: int

The identifier of the control sending the message.

pnmhdr

Type: NMHDR*

A pointer to an NMHDR structure that contains the notification code and additional information. For some notification codes, this parameter points to a larger structure that has the NMHDR structure as its first member.

fn

Type: function

The function that sends or posts the WM_NOTIFY message. This parameter can be either the SendMessage or PostMessage function.

Return value

Type: VOID

Returns a value whose meaning depends on the fn parameter.

Remarks

The FORWARD_WM_NOTIFY macro is defined as follows.

#define FORWARD_WM_NOTIFY(hwnd, idFrom, pnmhdr, fn) \ 

    (void)(fn)((hwnd), WM_NOTIFY, (WPARAM)(int)(id), \ 
    (LPARAM)(NMHDR*)(pnmhdr)) 

Requirements