xosd_get_number_lines - Retrieve the number of lines the xosd object
was initialized to display
#include <xosd.h>
int xosd_get_number_lines(xosd* osd);
xosd_get_number_lines will get the number of lines the xosd object was
initialized to display.
osd The on-screen display object to act on.
xosd_init(3xosd),