Disable Slider Click
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Note: I'm guessing based on how I would implement it.
The thumb is probably a separate widget and has it's own mouse press events. I could be wrong though. Best course of action is to inspect the source of QSlider here and find out what exactly needs to be done. You could also try and find out by subclassing, reimplementing mousePressEvent to do nothing at all and see what happens. If that does what you need, you don't need to go into the source after all.
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