// Return first available unused keycode
func (x *X) UnusedKeycode() (C.KeyCode, error) {
if x.unusedKeycode > 0 {
return x.unusedKeycode, nil
}
var min_keycode C.int
var max_keycode C.int
C.XDisplayKeycodes(x.dpy, &min_keycode, &max_keycode)
for i := min_keycode; i <= max_keycode; i++ {
var keysyms_per_keycode C.int
keysym := C.XGetKeyboardMapping(x.dpy, C.KeyCode(i), 1, &keysyms_per_keycode)
if *keysym == 0 {
x.unusedKeycode = C.KeyCode(i)
return x.unusedKeycode, nil
}
}
return 0, fmt.Errorf("Unable to find an unused keycode")
}
func (k *Keyboard) KeyDown(c KeyCode) bool {
return gobool(C.keyboard_is_key_down(k.cptr, C.KeyCode(c)))
}