Version Legato 1.1n (GoFiler 4.24a) introduced trackbar support. This is a Windows common control allowing for the adjustment of a visual slider. Trackbars are commonly employed to allow users to adjust things that have a range of values, such as the magnification of a document or image, the position inside a document, or the volume of the playback on an audio/video file. Trackbars are similar in many ways to scrollbar controls.
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