Change the offset of the xosd window
#include <xosd.h>
int xosd_set_vertical_offset (xosd* osd, int offset);
xosd_set_vertical_offset changes the number of pixels the XOSD window is offset from the top or bottom of the screen. This is normally set to a value such as 48 to avoid desktop-panels, such as those provided by GNOME or KDE.
The on-screen display object to act on.
Offset from the top or bottom of the screen, in pixels.
On success, a zero is returned. On error, -1 is returned.
xosd_init(3), xosd_set_pos(3).