UpDownButton
fUpDownButton = new UpDownButton(buttonRect, new BMessage(VIEW_LIST));
UpDownButton * fUpDownButton;
UpDownButton::UpDownButton(BRect _rect, BMessage *msg, uint32 resizeFlags)
UpDownButton::~UpDownButton()
UpDownButton::Draw(BRect updateRect)
UpDownButton::MouseDown(BPoint point)
UpDownButton::MouseMoved(BPoint point, uint32 transit, const BMessage *message)
UpDownButton::MouseUp(BPoint point)
class UpDownButton : public BControl
UpDownButton(BRect rect, BMessage *msg, uint32 resizeFlags = 0);
~UpDownButton();