GetEditionOpenerProc
GetEditionOpenerProc Locate the current edition opener procedure
#include <Editions.h> Edition Manager
EditionOpenerProcPtr * opener points to the current edition opener procedure
returns Error Code; 0=no error
Use the GetEditionOpenerProc function to locate the current edition
opener procedure.
opener returns the pointer to the current edition opener procedure.
Returns: an operating system Error Code.
noErr (0) No error

Notes: The Edition Manager never opens or closes an edition container
directly--it calls the current edition opener. To override the standard
edition opener function, you should create an opener function that contains
the following parameters.
OSErr MyOpener (EditionOpenerVerb selector,
Selector is set to one of the edition opener verbs (eoOpen, eoClose,
eoOpenNew, eoCloseNew, eoCanSubscribe). PB contains an edition opener
parameter block record. See Subscribing to Non-Edition Files for
more information on writing an edition opener.