存储mousedown位置 [英] Store mousedown locations

问题描述

我的可可应用程式会计算每个mousedown活动的位置。下次单击鼠标时，该位置将被新的位置覆盖。如何存储位置？

My cocoa app calculates the location for every mousedown event. The next time the mouse is clicked, the location is overwritten by the new one. How can I store the locations? Is it possible to create an array with mousedown locations?

感谢

推荐答案

p>当然可以。因为你处理一个原始结构（NSPoint），你需要将它包装在一个对象中，然后你可以把它放在NSArray中。 NSValue是一个现成的类，允许你这样做，看看 [NSValue valueWithPoint：aPoint]; 。

Sure you can. Since you're dealing with a primitive struct (NSPoint) you'll need to wrap that in an object before you can put it in an NSArray though. NSValue is a ready-made class that allows you to do this, take a look at [NSValue valueWithPoint:aPoint];.

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