MAXScript Tools and Interaction with 3ds Max > Interacting with the 3ds Max User Interface > Trackbar >

# trackbar

The following methods are associated with the Trackbar:

    trackbar.getPreviousKeyTime()

Gets the previous key time. If no previous key is present, returns undefined .

EXAMPLE
    at time sliderTime trackbar.getPreviousKeyTime()

    trackbar.getNextKeyTime()

Gets the next key time. If no next key is present, returns undefined .

The following 3ds Max System Global Variables are associated with the Trackbar:

    trackbar.filterName

Get and set the filter specifying which types of keys to show in the Trackbar.

The valid values are: #all , #TMOnly , #currentTM , #object and #mat .

    trackbar.visibleBoolean

Get and set whether the trackbar is visible - true if the trackbar is visible, false if invisible

#### See Also

- Status Bar

- Interface: StatusPanel

- Interface: FrameTagManager

- Exploring the Trackbar Filter Callback Functions

- Trackbar Keys Filter Callback Function Examples