Re: "ghost" knobs on sliders?
Re: "ghost" knobs on sliders?
- Subject: Re: "ghost" knobs on sliders?
- From: "John C. Warner" <email@hidden>
- Date: Wed, 30 Mar 2005 08:31:16 -0500
On 30 Mar, 2005, at 7:50 AM, Chris Stephens wrote:
Hi folks,
Thanks for all the help with my recent slider query: I'm sorted now
and progressing.
I now have my application's sliders responding to physical movements
of the knobs on the hardware device.
When I programmatically request a dump of all the controls (the
hardware device has a command to let me do this) the slider knobs fly
obediently to their positions - but sometimes leave a "ghost" image of
the knob in the centre position where they all were a moment before.
You can see the effect at
http://www.elucid.com.au/images/ghost-knobs.jpg .
Is this a known phenomenon? How should I fix it?
Maybe you've already seen this, but I think someone's already been down
the same road. <http://www.cocoadev.com/index.pl?TrackingSlider>
-John
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