TcxCustomTrackBar Class

Serves as the base for track bar editors.

Declaration

TcxCustomTrackBar = class(
    TcxCustomEdit,
    IcxTrackBar,
    IcxTrackBarPostProvider
)

Remarks

Track bar editors allow end-users to edit values using a thumb. The edit value can be changed using any of the following methods:

Dragging the thumb with the mouse;
Clicking the track bar at the required position;
Clicking the change buttons;
Pressing the arrow keys, or the Page Up, Page Down, Home, or End key when the track bar editor is focused. Pressing any of these keys while holding down the Shift key adjusts the current selection.

Track bars can also display a scale showing the range of edit values, marking each possible thumb position by a number and/or line.

The TcxCustomTrackBar class implements the essential functionality required by track bar editors. The derived TcxTrackBar and TcxDBTrackBar controls simply publish the inherited properties and events. Do not create instances of the TcxCustomTrackBar class to add a track bar to forms. Use its descendants instead. The TcxCustomTrackBar class can be used as the base class if you need to create custom track bar editors.

The TdxCustomZoomTrackBar class, which also inherits from the TcxCustomTrackBar class, extends its ancestor with members that are specific to zoom track bars.