TrackBar Control (Windows Forms)
The Windows Forms TrackBar control (also sometimes called a "slider" control) is used for navigating through a large amount of information or for visually adjusting a numeric setting. The TrackBar control has two parts: the thumb, also known as a slider, and the tick marks. The thumb is the part that can be adjusted. Its position corresponds to the Value property. The tick marks are visual indicators that are spaced at regular intervals. The track bar moves in increments that you specify and can be aligned horizontally or vertically. An example use of a track bar would be for setting cursor blink rate or mouse speed.