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Asked: 2026-05-11T17:33:50+00:00

I am doing manual layouting for my Cocoa application and at some point I

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I am doing manual layouting for my Cocoa application and at some point I need to figure out what the inner size of a NSView subclass is. (E.g. What is the height available for my child view inside of a NSBox?)

One of the reasons is that I am using a coordinate system with origin at the top-left and need to perform coordinate transformations.

I could not figure out a way to get this size so far and would be glad if somebody can give me a hint.

Another very interesting property I would like to know is the minimum size of a view.

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1 Answer

  1. Editorial Team

    -bounds is the one you’re looking for in most views. NSBox is a bit of a special case, however, since you want to look at the bounds of the box’s content view, not the bounds of the box view itself (the box view includes the title, edges, etc.). Also, the bounds rect is always the real size of the box, while the frame rect can be modified relative to the bounds to apply transformations to the view’s contents (such as squashing a 200×200 image into a 200×100 frame).

    So, for most views you just use [parentView bounds], and for NSBox you’ll use [[theBox contentView] bounds], and you’ll use [[theBox contentView] addSubview: myView] rather than [parentView addSubview: myView] to add your content.

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