How to resize only one side of NSWIndow programmatically?

Question

From the Apple documentation, we can modify the resizing value(multipliers) by assigning new values to ResizeIncrements.

But The minimum value is 1 so, I was wondering if resizing only one side (only Width or only Height at a time) is possible.

I've tried to use callback, resetting the size of the NSWindow each time the user drag to resize it, but it's not working.

Edit:

To be more specific, I'd like to know if restricting the resizing option to only one side is possible.

Answer 1

Yes simply override windowWillResize:size: and return whatever value you want to allow.

I don't believe resizeIncrements will affect this; that just sets the increments to allow but the window delegate will have the final say.