The width of the image used to indicate the state of the menu item.
- macOS 10.0+
If the menu item has multiple images associated with it (to indicate any of the available states: on, off, or mixed), this property contains the width of the largest image. You can set the state images for a menu item using the setOnStateImage:, setOffStateImage:, and setMixedStateImage: methods of
To change the state of the cell’s menu item, use the setState: method of