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2014/10/15 ¤U¤È 10:11:23
iphone Programming Glossary: mheightmemory leak when using CGImageCreateWithJPEGDataProvider http://stackoverflow.com/questions/12211158/memory-leak-when-using-cgimagecreatewithjpegdataprovider CGImageRetain image sometimes memory leak in this line. mBitmap CGImageCreateCopy image mWidth CGImageGetWidth image mHeight CGImageGetHeight image CGImageRelease image return self void dealloc if mBitmap NULL CGImageRelease mBitmap mBitmap NULL..
How to make one color transparent on a UIImage? http://stackoverflow.com/questions/633722/how-to-make-one-color-transparent-on-a-uiimage imageWithCGImage New CGImageRef createMask UIImage temp CGImageRef ref temp.CGImage int mWidth CGImageGetWidth ref int mHeight CGImageGetHeight ref int count mWidth mHeight 4 void bufferdata malloc count CGColorSpaceRef colorSpaceRef CGColorSpaceCreateDeviceRGB.. temp CGImageRef ref temp.CGImage int mWidth CGImageGetWidth ref int mHeight CGImageGetHeight ref int count mWidth mHeight 4 void bufferdata malloc count CGColorSpaceRef colorSpaceRef CGColorSpaceCreateDeviceRGB CGBitmapInfo bitmapInfo kCGBitmapByteOrderDefault.. renderingIntent kCGRenderingIntentDefault CGContextRef cgctx CGBitmapContextCreate bufferdata mWidth mHeight 8 mWidth 4 colorSpaceRef kCGImageAlphaPremultipliedFirst CGRect rect 0 0 mWidth mHeight CGContextDrawImage cgctx rect ref..
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