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Re: QuickTime, Cocoa, et al
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Re: QuickTime, Cocoa, et al


  • Subject: Re: QuickTime, Cocoa, et al
  • From: "Douglas A. Welton" <email@hidden>
  • Date: Wed, 07 Jun 2006 21:03:43 -0400

on 6/7/06 6:58 PM, Joseph Kelly at email@hidden wrote:

> Question 1: So is this even possible, or am I doing something the
> wrong way in my drawing code? I've seen a samplecode example that
> uses an overlay window, but that won't work for me, which is my segue
> into:

You might want to check out the CaptureAndCompressIPBMovie sample code.  The
application does some simple "drawing" on a captured QT movie.

> Question 2: we've got a UI that lets users layer view "objects" on
> top of each other (including QuickTime movies!) I've read that NSView
> is absolutely not up to this task -- that it has some z-ordering
> issues etc. So far, however, I've got a screen full of overlapping
> NSViews, and they seems to work okay (outside of the quicktime
> issues) and an occasional z-order glitch. So what's the final verdict
> on overlapping NSViews? And has anyone found any alternatives to this?

Do your objects know how to draw themselves?  If so, I would suggest that
you have one view that can reliably handle the z-ordering draw all the
enclosed objects...

just my two cents.

- douglas

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References: 
 >QuickTime, Cocoa, et al (From: Joseph Kelly <email@hidden>)

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