| Re: Number of colors of widget appliation [message #18052 is a reply to message #17982] |
Wed, 24 November 1999 00:00   |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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davidf@dfanning.com (David Fanning) writes:
> Humm. Yes. Well, I suppose I could believe some funny business
> with private color tables. But I would still make sure
> I tried the expose event idea. If that didn't work,
> something would be *seriously* wrong. :-(
Hmm. Looking back at my notes, I didn't try expose events, but I
*did* try tracking events, which should be the appropriate thing.
Tracking events are generated whenever the mouse enters or leaves the
widget, while expose events only happen when a part of the window is
exposed and needs to be redrawn.
The point remains: IDL doesn't switch the color tables when entering
draw widgets. LOADCT may load a new color table internally into IDL,
but it never becomes active on the screen.
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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