## Class: TouchBarSegmentedControl > Create a segmented control (a button group) where one button has a selected state Process: [Main](../tutorial/quick-start.md#main-process) ### `new TouchBarSegmentedControl(options)` _Experimental_ * `options` Object * `segmentStyle` String (optional) - Style of the segments: * `automatic` - Default. The appearance of the segmented control is automatically determined based on the type of window in which the control is displayed and the position within the window. * `rounded` - The control is displayed using the rounded style. * `textured-rounded` - The control is displayed using the textured rounded style. * `round-rect` - The control is displayed using the round rect style. * `textured-square` - The control is displayed using the textured square style. * `capsule` - The control is displayed using the capsule style. * `small-square` - The control is displayed using the small square style. * `separated` - The segments in the control are displayed very close to each other but not touching. * `mode` String (optional) - The selection mode of the control: * `single` - Default. One item selected at a time, selecting one deselects the previously selected item. * `multiple` - Multiple items can be selected at a time. * `buttons` - Make the segments act as buttons, each segment can be pressed and released but never marked as active. * `segments` [SegmentedControlSegment[]](structures/segmented-control-segment.md) - An array of segments to place in this control. * `selectedIndex` Integer (optional) - The index of the currently selected segment, will update automatically with user interaction. When the mode is multiple it will be the last selected item. * `change` Function - Called when the user selects a new segment. * `selectedIndex` Integer - The index of the segment the user selected. * `isSelected` Boolean - Whether as a result of user selection the segment is selected or not. ### Instance Properties The following properties are available on instances of `TouchBarSegmentedControl`: #### `touchBarSegmentedControl.segmentStyle` A `String` representing the controls current segment style. Updating this value immediately updates the control in the touch bar. #### `touchBarSegmentedControl.segments` A `SegmentedControlSegment[]` array representing the segments in this control. Updating this value immediately updates the control in the touch bar. Updating deep properties inside this array **does not update the touch bar**. #### `touchBarSegmentedControl.selectedIndex` An `Integer` representing the currently selected segment. Changing this value immediately updates the control in the touch bar. User interaction with the touch bar will update this value automatically.