WM_ACTIVATEAPP
The
WM_ACTIVATEAPP message is sent when a window belonging to a different
application than the active window is about to be activated. The message is
sent to the application whose window is being activated and to the application
whose window is being deactivated.
WM_ACTIVATEAPP
fActive = (BOOL) wParam; // activation flag
dwThreadID = (DWORD) lParam: // thread identifier
Parameters
fActive
Value of wParam.
Specifies whether the window is being activated or deactivated. This parameter
is TRUE if the window is being activated; it is FALSE if the window is being
deactivated.
dwThreadID
Value of lParam.
Specifies a thread identifier. If the fActive parameter is TRUE, dwThreadID
is the identifier of the thread that owns the window being deactivated. If fActive
is FALSE, dwThreadID is the identifier of the thread that owns the
window being activated.
Return Values
If an
application processes this message, it should return zero.
See Also