Re: QTMovie grabing while playback

FROM : Jean-Daniel Dupas
DATE : Wed Apr 23 19:49:42 2008

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.