Some advice on video frame grabbing

Doug Lerner doug at webcrossing.com
Sat Jan 31 04:20:52 EST 2004


On 1/31/04 6:14 PM, "Chipp Walters" <chipp at chipp.com> wrote:

>>> 
>>> set the defaultStack to "theStackWithTheVideo"
>> 
>> You mean the stack with the video grabber window in it?
> 
> Yep
>> 
>> Well, as a test I can do that in the sample stack. It would be hard to
>> do as
>> a test in my current app now considering how complicated it has gotten.
>> 
>> But weirdest of all - it worked one time! But I couldn't repeat it
>> after
>> that.
>> 
>> Also, sometimes the revCloseVideoGrabber that I call when I close the
>> video
>> grabber window (in closeStack) does not seem to get sent and I need to
>> invoke it manually.
>> 
> Still sounds like a defaultStack or topStack problem to me. Can't you
> just grow the window and add an image to test?

Yes, that is a good idea. That would be easy to do.

I think I am having a problem with "mixed signals" though. For example, I am
starting my "repeat loop" for QT inside openStack. I think I'll try and move
things around first.

By the by, the video grabber doesn't *really* reside in a stack anyway -
it's a special sort of a global window - so I don't see how defaultStack
settings could apply.

doug



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