Trackbar - Changed Event
Changed is a change in the component
Member of Trackbar (PRIM_TKBR)
The Changed event is fired after the value of an trackbar has been modified.
In this example, when a Volume trackbar is changed, the value is applied to a video control.
Evtroutine Handling(#Volume.Changed)
#Video.Volume := #Volumne.Value
Endroutine
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