wn_get_active_screen

	status.i4.v = wn_get_active_screen()

	This routine retrieves the currently active output screen for
	graphic windows created by calls to wn_view(_c).

	This function returns ACNET status values as follows:

	GXPA_1			number "1" graphics screen
	GXPA_2			number "2" graphics screen (PAs only)

	This function requires the following include files:

	cbslib_h

	Related functions:

	wn_select_screen(_c), wn_screen_init(_c), wn_view(_c), wn_get_active,
	wn_active(_c), intro_graphics_windows

	C/C++ usage:

	int	status;

	status = wn_get_active_screen();