void stdvga_set_scan_lines(u8 lines);
u16 stdvga_get_vde(void);
int stdvga_get_window(struct vgamode_s *vmode_g, int window);
int stdvga_set_window(struct vgamode_s *vmode_g, int window, int val);
void stdvga_set_scan_lines(u8 lines);
u16 stdvga_get_vde(void);
int stdvga_get_window(struct vgamode_s *vmode_g, int window);
int stdvga_set_window(struct vgamode_s *vmode_g, int window, int val);