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WM_HELP

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; 

 

Parameters

lphi
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

DefWindowProc, HELPINFO

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