void ctl_gfx_controller_set_window_at_0x44_0x45_0x46(CTL_GFX_CONTROLLER_t *self, int x, int y, int w, int h);
ctl_gfx_controller_set_window_at_0x44_0x45_0x46 issues the "set window" command to a Samsung-like graphics controller with a single 16-bit vertical start/end register at 0x44 and horizontal start/end registers at 0x46 and 0x46.