window_give_focus (ul_windowlib)

	status.i4.v = window_give_focus()

	This routine makes a request to give focus to the calling program's
	background window.

	This function returns status values as follows:

	CBS_OK			focus request successfully made
	CBS_NOTENB		invalid calling environment

	This function requires the following include files:

	ul_windowlib_h:windowlib_h, acnet_errors_h

	Related functions:

	window_has_focus, window_wait_for_focus

	C/C++ usage:

	int	status;

	status = window_give_focus();