How to determine an NSSlider's thumb position onscreen?

  • Hi all,

    Anyone know how to get the screen position of an NSSlider's thumb?

    NSSliderCell has a method knobRectFlipped: which works perfectly, though I note the docs say "You should never invoke this method explicitly. It’s included so you can override it".  I don't see any other way though...

    (Since someone will ask: I want to position a custom floating window adjacent to a slider's thumb when the user drags the thumb.  The window would act a bit like a tool tip, showing the numerical value of the thing being adjusted.  I suppose I could abuse the tooltip, but I'm already using it to explain what the control is for.)


    Sean McBride, B. Eng                <sean...>
    Rogue Research              
    Mac Software Developer              Montréal, Québec, Canada
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