objective-c - CGRect 和 NSRect 之间有什么区别吗？

Question

CGRect 和 NSRect 有区别吗？特别是，我想知道原点的位置。有什么我需要了解的重要差异吗？

Answer 1

它们是一样的。 This link有更多信息。复制到此处以供快速引用:

CGRect is the CoreGraphics equivalent of NSRect.

They are deliberately made to have the same layout in memory. As such, it is allowed to convert an NSRect to a CGRect by doing this:

CGRect cgrect = *(CGRect *)&nsrect;

CoreGraphics also provides a CGRectMake() function which works the same as NSMakeRect() (note the reversal of verb and object in the names) except it returns a CGRect.