Cocoa CGImageRef的PicHandle 此项目是一个通用的C++插件，具有核心图形支持。我无法成功地将PicHandle转换为CGImageRef。从CFDataRef保存图像会导致图像损坏 if(pic) { Handle thePictureFileHandle; thePictureFileHandle = NewHandleClear(512); HandAndHand((Handle)pic,thePictureFileHandle); dataProvider= CGDataProviderCreateWithData(NULL,(void*)*thePictureFileHandle,GetHandleSize( (Handle)thePictureFileHandle ),NULL ); CFDataRef data = CGDataProviderCopyData(dataProvider); CGImageSourceRef source = CGImageSourceCreateWithDataProvider(dataProvider, NULL); if ( source ) { cgImageRef = CGImageSourceCreateImageAtIndex(source, 0, NULL); } CGDataProviderRelease(dataProvider); CFRelease( source ); CFRelease( data ); }

在

CGImageSourceCreateImageAtIndex

中，您需要传递字典，说明您的数据是

PICT

。 请参阅Apple文档。你需要像这样做

CFDictionaryRef   myOptions = NULL;
CFStringRef       myKeys[1];
CFTypeRef         myValues[1];

myKeys[0] = kCGImageSourceTypeIdentifierHint;
myValues[0] = (CFTypeRef)kUTTypePICT;
myOptions = CFDictionaryCreate(NULL, (const void **) myKeys,
               (const void **) myValues, 1,
               &kCFTypeDictionaryKeyCallBacks,
               & kCFTypeDictionaryValueCallBacks);

cgImageRef = CGImageSourceCreateImageAtIndex(source, 0, myOptions);

CFRelease(myOptions);