read_lx_format(num_rows.i4.r, num_columns.i4.r [,text_size.i4.r])

	This routine will read the screen format of the current graphical

	num_rows	returned number of rows
	num_columns	returned number of columns
	[text_size]	text size to calculate for (default is current size)

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	lx_row_to_pix(_c), lx_col_to_pix(_c), lxprint(_c), lxtext(_c),
	lxblnk(_c), wn_text(_c)