KeyCode left_code = XKeysymToKeycode (dpy, XStringToKeysym("Left"));
KeyCode right_code = XKeysymToKeycode (dpy, XStringToKeysym("Right"));
KeyCode plus_code = XKeysymToKeycode (dpy, XStringToKeysym("plus"));
KeyCode left_code = XKeysymToKeycode (dpy, XStringToKeysym("Left"));
KeyCode right_code = XKeysymToKeycode (dpy, XStringToKeysym("Right"));
KeyCode plus_code = XKeysymToKeycode (dpy, XStringToKeysym("plus"));