I don't know if this would be the most efficient way, but if you can get your image as a CGImageRef you can use the functions below. They work for me. You might want to handle errors better.
There are tips at <http://www.cocoadev.com/index.pl?ConvertNSImageToCGImage> for getting a CGImageRef. --Andy ========== BOOL ALExportCGImageWithType(CGImageRef imageRef, NSString *imageFilePath, CFStringRef imageTypeRef) { NSURL *imageFileURL = [NSURL fileURLWithPath:imageFilePath]; if (imageFileURL == nil) { NSLog(@"[ERROR] %s -- Could not create an NSURL from '%@'.", __PRETTY_FUNCTION__, imageFilePath); return NO; } CGImageDestinationRef imageDestRef = CGImageDestinationCreateWithURL((CFURLRef)imageFileURL, imageTypeRef, 1, NULL); if (imageDestRef == NULL) { NSLog(@"[ERROR] %s -- Failed to create CGImageDestinationRef.", __PRETTY_FUNCTION__); return NO; } CGImageDestinationAddImage(imageDestRef, imageRef, NULL); if (!CGImageDestinationFinalize(imageDestRef)) { NSLog(@"[ERROR] %s -- Failed to save image to '%@' with type '%@'.", __PRETTY_FUNCTION__, imageFilePath, imageTypeRef); return NO; } return YES; } BOOL ALExportCGImageAsPNG(CGImageRef imageRef, NSString *imageFilePath) { return ALExportCGImageWithType(imageRef, imageFilePath, kUTTypePNG); } _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
