Scroll Bar
A control for shifting the contents of a window left and right on horizontal scroll bars or up and down on vertical ones.
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Slider
This control can be used to adjust a value within a limited range. Sometimes the value chosen with the slider will be displayed. On some sliders there will be only a few values that can be chosen, as with the screen resolution selector.
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Spinner
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Tree View
Tree views appear in a variety of forms, but share the same basic characteristics: items containing sub-items containing sub-items and so on. On some tree views each item will have an associated tick boxes. Click on the + symbol next to an item to see the sub-items it contains. The symbol will then change to a -, which you can click to hide the sub-items.
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