I'm having problems validating an NSSegmentedControl in a toolbar.
I have tried implementing both -validateUserInterfaceItem: and - validateToolbarItem: but neither is called for the segmented control. They are called for other simple buttons in the toolbar.
There's a note in the documentation for -validateToolbarItem: that "NSToolbar only calls this method for image items", which might explain it. So what do I need to do to make this work for the segmented control? I've read all the toolbar and validation documentation I can find but I'm none the wiser - nothing so far stands out as the obvious right way to proceed.
My toolbar is currently wholly set up in IB, with no code in my app at all.
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