This message indicates that the user pressed the F1 key. If a menu is active when F1 is pressed, WM_HELP is sent to the window associated with the menu; otherwise, WM_HELP is sent to the window that has the keyboard focus. If no Window has the keyboard focus, WM_HELP is sent to the currently active window.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
WM_HELP lphi = (LPHELPINFO) lParam;
Parameters
lphi
Long pointer to a HELPINFO structure that contains information about the menu item, control, dialog box, or window for which Help is requested.
Return Values
Returns TRUE
Remarks
The DefWindowProc function passes WM_HELP to the parent window of a child window or to the owner of a top-level window.
See Also