- (void) showHideHudControls;
- (IBAction) SettingsChanged: (id) sender;
- (IBAction) pictureSliderChanged: (id) sender;
- (IBAction)showPictureSettings:(id)sender;
- (void) showHideHudControls;
- (IBAction) SettingsChanged: (id) sender;
- (IBAction) pictureSliderChanged: (id) sender;
- (IBAction)showPictureSettings:(id)sender;