The ASlider control is a window containing a thumb, numerical and text labels, and optional tick marks. When the user moves the thumb, using either the mouse or the direction keys, the control fires notification events to indicate the change.
The ASlider control supports a variety of styles from three main groups: slider, knob, and meter.
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Slider controls are useful when you want to select a discrete value. For example, you could use a slider to set the size of a displayed image by moving the slider to a given tick mark rather than by typing a number.
The value of the ASlider can be changed by dragging the scroll box or clicking on the arrows or by using the keyboard arrow keys, page down page up (similar to clicking between the arrow and the box), home and end keys. The slider position is proportional and is determined by ThumbValue property.