class ZoomBar;
class SampleZoomPanel;
class AmpZoomPanel;
class ZoomBar;
class SampleZoomPanel;
class AmpZoomPanel;
+class ATrackZoomPanel;
+class VTrackZoomPanel;
class AutoZoom;
class AutoTypeMenu;
class ZoomTextBox;
class AutoZoom;
class AutoTypeMenu;
class ZoomTextBox;