Slider

In a GUI (Graphical User Interface), a slider (also known as a track bar) is a graphical control element used to set or change a value. They are usually oriented horizontally and serve many purposes. For example, the image shows the playback slider in Windows Media Player, which moves to different parts of a video or audio file.

Slider examples

Examples of slider functions include the following.

• Adjusting mouse cursor sensitivity.
• Changing screen brightness on a laptop or smartphone.
• Increasing color saturation in a photo editing program.
• Turning up headphones or speaker volume.
• Zooming in and out of a document or web page.

A slider may appear similar to a scroll bar. However, sliders differ in that they can manipulate specific elements or values on a web page or program without changing the overall look or screen layout.

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