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#define INCL_WINMESSAGEMGR
 
WM_ACTIVATE
fActive = (BOOL) SHORT1FROMMP(mp1);    /* activation/deactiv. flag */
hwnd = (HWND) HWNDFROMMP(mp2);         /* window handle            */
 
A WM_ACTIVATE message is sent when a window is being activated or
deactivated. This message is sent first to the window procedure of the main
window being deactivated and then to the window procedure of the main window
being activated.
 
Parameter  Description
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fActive    Low word of mp1. Indicates whether the window is being activated
           or deactivated. A value of TRUE means the window is being
           activated. A value of FALSE indicates the window is being
           deactivated.
 
hwnd       Low and high word of mp2. Identifies the window being activated
           or deactivated.
 
Return Value
 
An application should return zero if it processes this message.
 
Comments
 
When a window gains the focus, it receives a WM_ACTIVATE message, a
WM_SETSELECTION message, and a WM_SETFOCUS message (in that order). When the
window loses the focus, it receives a WM_SETFOCUS message, a
WM_SETSELECTION message, and a WM_ACTIVATE message (in that order).
 
See Also
 
WM_FOCUSCHANGE, WM_SETFOCUS, WM_SETSELECTION
 
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