Re: QTMovie grabing while playback
Re: QTMovie grabing while playback
- Subject: Re: QTMovie grabing while playback
- From: Jean-Daniel Dupas <email@hidden>
- Date: Wed, 23 Apr 2008 19:49:42 +0200
Le 23 avr. 08 à 19:30, Bob Smith a écrit :
On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote:
Nikolai,
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is displayed
in the Target_View. Check the header file for QTMovieView.h (near
the bottom). I think the the MyMovieFilter sample code uses this
method.
I cannot find this method in the documentation, where is it
described? Is it in the public interface? This is the perfect
solution to a similar problem I'm having with a Cocoa app using
QuickTime, but I don't want to use undocumented private APIs.
Yes, it's a public method even if the documentation is missing.
Undocumented does not mean private. You may considere that everything
that is declared in public headers is public (except if there is a
comment that say it's not, but it's unusual).
This method is not documented because this is a method introduce with
QTKit 7.2 and the documentation was not updated to reflect the change.
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