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Re: AU automation gestures/scroll wheel events
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Re: AU automation gestures/scroll wheel events


  • Subject: Re: AU automation gestures/scroll wheel events
  • From: Jim Wintermyre <email@hidden>
  • Date: Fri, 5 Jun 2009 20:31:39 -0700

ii) Using the mouse scroll wheel for GUI elements poses the problem of when to send begin and end gestures. I'm thinking the best way would be to simply measure elapsed time between events and send an end gesture if elapsed time is greater than a timeout value. Anyone got any better ideas?

Yeah, that's a tough one. We have the same problem. We let the user move the mouse over a knob and then move it by adjusting the scroll wheel. But sending the begin/end gestures on each scroll wheel movement notification (several per typical "scroll") breaks in touch automation mode. The timer thought might be the best workaround, just cancel it immediately if some other param change starts before the timeout is reached. Yes, this will break if the user actually intended to leave the last value "pressed" for a while, but you simply can't do that with a non-pressable scroll wheel. Typically users only want the scroll wheel for quick adjustments of knobs anyway, as a shortcut to having to click and drag. For something where they want to leave it at a certain value for a while, they just have to click and drag.


Jim

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