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Creating a QCRenderer from a QCComposition

Hi,

I am trying to create a QCRenderer with a QCComposition object like this

QCRenderer *renderer = [[QCRenderer alloc] initWithComposition:composition colorSpace:NULL];

But when I create the QCRenderer I have the following exception

*** NSRunLoop ignoring exception '-[QCRenderer initWithComposition:colorSpace:]: Argument "colorSpace" does not verify "(CGColorSpaceGetModel(colorSpace) == kCGColorSpaceModelRGB) && (CGColorSpaceGetType(colorSpace) != kCGColorSpaceDeviceRGB)"'

How can I create a Color Space working with my QCRenderer ?

Christophe

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