status.i4.v = wn_read_text_format(num_rows.i4.r, num_columns.i4.r)

	This routine returns the text format for the active graphic window.
	A previous call to wn_active(_c) is required.

	num_rows	number of text rows possible
	num_columns	number of text columns possible

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOSETUP		an active window has not been established

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_read_background_format, wn_text_size(_c), wn_text(_c),
	wn_display_value(_c), intro_graphics_windows

	C/C++ usage:

	int	status;
	int	num_rows;
	int	num_columns;

	status = wn_read_text_format(&num_rows,&num_columns);