1     NSRect rect = {0, 0, 200,200};
2     NSValue *rectValue = http://www.mamicode.com/[NSValue valueWithBytes:&rect objCType:@encode(NSRect)];
3     NSRect newRect;
4     [rectValue getValue:&newRect];
5     NSLog(@"%f,%f,%f,%f",newRect.origin.x,newRect.origin.y,newRect.size.width,newRect.size.height);