WM_NOTIFY

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
-
Header File
winuser.h
Unicode
No
Platform Notes
None

The WM_NOTIFY message informs the parent window of a control that an event has occurred in the control or that the control requires some kind of information.

WM_NOTIFY

idCtrl = (int) wParam;

pnmh = (LPNMHDR) lParam;

Parameters
idCtrl

Identifier of the control sending the message. This identifier is not guaranteed to be unique. An application should use the hwindFrom or idFrom member of the NMHDR structure (passed as the lParam parameter) to identify the control.

pnmh

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

Return Values
The return value is ignored except for notification messages that specify otherwise.