Please how can i detect the difference between the trackbar old and new positions, i.e if I slide the track bar from 0 to say 180,the output textbox above should indicate 1 but when slide it backwards to say 45, the output textbox should indicate 2,but when the value remains the same the output textbox should indicate 0
The idea is to be able to know when the trackbar is making a downwards/negative or upwards/positive movements
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