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POCan I release a CGPDFDocumentRef if I have retained one of it's CGPDFPageRefs and hope the page does not go away?
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2013-11-14T11:12:20.770
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2017-05-04T08:59:48.043
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Specifically, for the sake of encapsulation, I would like to use an accessor like: <pre><code>- (CGPDFPageRef)pageCreate { // Assume url exists and is valid NSURL *url = [self url]; CGPDFDocumentRef document = CGPDFDocumentCreateWithURL((__bridge CFURLRef)url); CGPDFPageRef result = CGPDFDocumentGetPage(document,1); CGPDFPageRetain(result); CGPDFDocumentRelease(document); return result; } </code></pre> I'm assuming that those using the method would know the page has been retained (thus putting the word create in the method name even if it's slightly misleading) and that they need to release it when they have finished using it. The question is... would the page be valid since I have released the document or would I be trying to access a released thing? 
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<ios><objective-c><cocoa><pdf><quartz-graphics>
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Can I release a CGPDFDocumentRef if I have retained one of it's CGPDFPageRefs and hope the page does not go away?
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1. USRiccardo De Menna
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