A Boolean value indicating whether the size of the menu needs to be calculated.
- macOS 10.0+
When the value of this property is
true, the next attempt to obtain size information about the menu cause the
calc method to be called. When the value of the property is
false, the size information is obtained from the currently cached values.
Subclasses that drastically change the way a menu item is drawn can change the value of this property to update the menu item information. Other parts of your application should not need to change this property directly. The cell checks this value of this property as necessary when the content of its menu item changes.