Draw line

suggest change

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetLineWidth(context, 5.0);
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
CGContextMoveToPoint(context, 200, 400);
CGContextAddLineToPoint(context, 100, 100);
CGContextStrokePath(context);
CGColorSpaceRelease(colorspace);

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