xcode: trying to capture a partial screen

Question

I must be doing something wrong, but I could use some advice on the following:

I am trying to capture a partial screen on both iPad and iPad retina.

I can get the portrait views ok, but I cannot get the right side of a landscape view to be in bounds.

This is the code I'm using (I did not have this problem before UIGetScreenImage() was made contraband)..

CGRect screenRect = [[UIScreen mainScreen] bounds]; UIGraphicsBeginImageContext(screenRect.size); CGContextRef ctx = UIGraphicsGetCurrentContext(); [[UIColor blackColor] set]; CGContextFillRect(ctx, screenRect); [self.view.layer renderInContext:ctx]; UIImage *img = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); CGImageRef imageRef = CGImageCreateWithImageInRect([img CGImage], CGRectMake (0, 100, self.view.bounds.size.width, (self.view.bounds.size.height - 200))); UIImage *img2Save = [UIImage imageWithCGImage:imageRef]; CGImageRelease(imageRef); // Request to save the image to camera roll UIImageWriteToSavedPhotosAlbum(img2Save, self, nil, nil);

These are the two images I get for portrait, and landscape:

Portrait

Landscape

Alec Sanger · Accepted Answer · 2012-05-17 01:49:45Z

1

If you are using your window as your frame, it will always show up in portrait mode. You can set screenRect to a full-screen view, which should work in both portrait and landscape mode.

answered May 17, 2012 at 1:49

Alec Sanger

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2 Comments

ICL1901 Over a year ago

Thank you. I'm googling and binging.. Do you have a preferred method to set this. The best I can find is to check orientation, and set coordinates manually. David

ICL1901 Over a year ago

I found this SO post - stackoverflow.com/questions/5677716/… that gives me a better convenience method. But you put me in the right direction, and i greatly appreciate that. So I'm marking this closed.. Thank you again.

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