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The slider may have its tracking capability set to '1' or '0' using the qsettracking command. A slider that has its tracking enabled will invoke the callback command continously throughout the drag. If tracking is disabled, the callback command will be invoked only when the user releases the mouse button. Tracking is enabled by default.
The slider may have tick marks in various locations (see the qsettickposition command for details).
Sliders may have their value set programmatically using qsetvalue.
See qhslider for examples on how to create sliders.
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