App designer: Enable mouse scroll to change value on slider

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Kaia Sørland
Kaia Sørland on 25 Feb 2020
Answered: J. Alex Lee on 25 Feb 2020
In the app designer: Is it possible to change the value on the slider by scrolling? Or possibly by using arrows on the keyboard?

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Accepted Answer

J. Alex Lee
J. Alex Lee on 25 Feb 2020
Take a look at the UIFigure's following properties:
  • WindowScrollWheelFcn
  • WindowKeyPressFcn
  • WindowKeyReleasedFcn
If you need these only to work while the mouse is over the slider element, you can test the mouse's location with hittest().

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