StackOverflow2013

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PONeed to save as .png, but I get .jpg
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copied!<p>I am saving to the photo Album, I want the file to be a .png but it saves as a .jpeg? Is it even possible to save a .png to the Photo Album?</p> <p>here is my code:</p> <pre><code>CGContextRef MyCreateBitmapContext (int pixelsWide,int pixelsHigh) { CGContextRef context = NULL; //CGColorSpaceRef colorSpace; void * bitmapData; int bitmapByteCount; int bitmapBytesPerRow; bitmapBytesPerRow = (pixelsWide * 4); bitmapByteCount = (bitmapBytesPerRow * pixelsHigh); //colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB); CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); bitmapData = malloc( bitmapByteCount ); if (bitmapData == NULL) { fprintf (stderr, "Memory not allocated!"); return NULL; } context = CGBitmapContextCreate (bitmapData, pixelsWide, pixelsHigh, 8,//bits per component bitmapBytesPerRow, colorSpace, kCGImageAlphaPremultipliedLast); if (context== NULL) { free (bitmapData); fprintf (stderr, "Context not created!"); return NULL; } CGColorSpaceRelease( colorSpace ); return context; } </code></pre> <p>and:</p> <pre><code>- (IBAction)save:(id)sender{ myBitmapContext = MyCreateBitmapContext (400, 300); // ********** Your drawing code here ********** CGContextSetRGBFillColor (myBitmapContext, 1, 0, 0, 1); CGContextFillRect (myBitmapContext, CGRectMake (0, 0, 400, 300 )); // ********** Your drawing code here ********** CGImageRef imageRef = CGBitmapContextCreateImage(myBitmapContext); UIImage * image = [[UIImage alloc] initWithCGImage:imageRef]; //NSData* imdata = UIImagePNGRepresentation ( image );// get PNG representation //UIImage* im2 = [UIImage imageWithData:imdata]; // wrap UIImage around PNG representation UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil); // save to photo album [image release]; CGImageRelease(imageRef); CGContextRelease(myBitmapContext); } </code></pre> <p>many thanks for any ideas</p>

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