CWnd::GetForegroundWindow
Returns a pointer to the foreground window (the window with which the user is currently working).
static CWnd* PASCAL GetForegroundWindow( );
Возвращаемое значение
A pointer to the foreground window. This may be a temporary CWnd object.
Заметки
The foreground window applies only to top-level windows (frame windows or dialog boxes).
Требования
Header: afxwin.h