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CGImageRef UIGetScreenImage(); |
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- (UIImage *) getScreenImage:(UIView *)shotView{ |
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CGImageRef cgImage = UIGetScreenImage(); |
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void *imageBytes = NULL; |
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if (cgImage == NULL) |
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{ CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); |
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imageBytes = malloc(shotView.bounds.size.width * shotView.bounds.size.height * 4); |
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CGContextRef context = CGBitmapContextCreate(imageBytes, shotView.bounds.size.width, shotView.bounds.size.height, 8, shotView.bounds.size.width * 4, colorspace, kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Big); |
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CGColorSpaceRelease(colorspace); |
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for (UIWindow *window in [[UIApplication sharedApplication] windows]) |
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CGRect bounds = [window bounds];
CALayer *layer = [window layer];
CGContextSaveGState(context);
if ([layer contentsAreFlipped]) {
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{ CGRect bounds = [window bounds]; CALayer *layer = [window layer]; CGContextSaveGState(context); if ([layer contentsAreFlipped]) { CGContextTranslateCTM(context, 0.0f, bounds.size.height); |
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CGContextScaleCTM(context, 1.0f, -1.0f); |
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}
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} [layer renderInContext:(CGContextRef)context]; |
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CGContextRestoreGState(context); |
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}
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} cgImage = CGBitmapContextCreateImage(context); |
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CGContextRelease(context); |
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}
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} UIImage *resultingImage = [UIImage imageWithCGImage:cgImage]; |
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CGImageRelease(cgImage); |
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return resultingImage;
} |
}