WM_NOTIFY
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.
See Also
NMHDR