ViewBarDefault: ViewBarDefault is a standard ViewBar item.

ViewBarCheck: ViewBarCheck is a ViewBar item, which Checked property is automatically managed within the Click event.

ViewBarButtonGroup: ViewBarButtonGroup is a ViewBarCheck-type SmartItem, which behavior is linked to the other ViewBarCheck buttons (previous and next buttons) of the same group. Only one of these buttons can be Checked (or pressed).

ViewBarSmallDefault: ViewBarSmallDefault is a ViewBarDefault-type SmartItem, which Caption is displayed on the right side.

ViewBarSmallCheck: ViewBarSmallCheck is a ViewBarCheck-type SmartItem, which Caption is displayed on the right side.

ViewBarSmallButtonGroup: ViewBarSmallButtonGroup is a ViewBarButtonGroup-type SmartItem, which Caption is displayed on the right side.