Handles a change in the value of a PPD option that the pane supports.
- macOS 10.4+
The PPD option that changed.
The new value of the PPD option.
The printing system invokes this method to inform your custom pane that the value of a PPD option you claimed to support via the
supported method has changed. Typically, this method is invoked if the user changes the value of a supported PPD option to resolve a conflict with the value of another option.
In this optional method, you can update any internal data you maintain for this PPD option.
The printing system does not invoke this method in OS X v10.4.