The WM_HELP 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.
WM_HELP lphi = (LPHELPINFO) lParam;
Returns TRUE.
The DefWindowProc function passes WM_HELP to the parent window of a child window or to the owner of a top-level window.
file: /Techref/os/win/api/win32/mess/src/msg24_10.htm, 1KB, , updated: 2000/4/7 11:14, local time: 2024/12/23 16:16,
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