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How to catch update event?

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  • K Offline
    K Offline
    kitfox
    wrote on last edited by
    #1

    I need to update the CSS for a QWidget component when the user adjusts their preferences. Is there a way to tell when update() has been called so that I can set a new CSS style before it is repainted?

    mrjjM 1 Reply Last reply
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    • K kitfox

      I need to update the CSS for a QWidget component when the user adjusts their preferences. Is there a way to tell when update() has been called so that I can set a new CSS style before it is repainted?

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #2

      @kitfox
      Hi
      You could use an eventfilter to intercept the event before it reaches the widget.
      Sample here
      https://stackoverflow.com/questions/33883703/qt-event-when-anything-changed-on-the-window-screen-screenshot

      and doc about the filters
      http://doc.qt.io/qt-5/eventsandfilters.html
      Read this first :)

      1 Reply Last reply
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