code: func (v *Window) GetMnemonicsVisible() bool {
  	c := C.gtk_window_get_mnemonics_visible(v.native())
  	return gobool(c)
  }
docs: // SetAutoStartupNotification is a wrapper around
  // gtk_window_set_auto_startup_notification().
  // This doesn't seem write.  Might need to rethink?
  /*
  func (v *Window) SetAutoStartupNotification(setting bool) {
  	C.gtk_window_set_auto_startup_notification(gbool(setting))
  }
  */
  // GetMnemonicsVisible is a wrapper around
  // gtk_window_get_mnemonics_visible().