C4 saving part of an image

Question

Hei, I went through the example for saving images and afterwards I wanted to save only a part of the screen. I managed to save the part starting at the upper left corner of the

Answer 1

This method what I wrote for this is works perfectly:

+ (UIImage*) getTheArea:(CGRect)area inView:(UIView*)view{

    if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
        UIGraphicsBeginImageContextWithOptions(CGSizeMake(area.size.width, area.size.height), NO, [UIScreen mainScreen].scale);
    else
        UIGraphicsBeginImageContext(view.bounds.size);

    CGContextRef c = UIGraphicsGetCurrentContext();
    CGContextTranslateCTM(c, -area.origin.x, -area.origin.y);    // <-- shift everything up by 40px when drawing.
    [view.layer renderInContext:c];
    UIImage* thePrintScreen = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return thePrintScreen;
}

for example, if you want to make a printscreen of your main view, in (100,50,100,100)

UIImage* image = [self getTheArea:CGRectMake(100,50,100,100) inView:view];