Acrobat SDK 9: how is AVAppOpenDialog a replaceable method in DMSIntegration sample?

Question

When I try to replace the Open Dialog call in PluginImportReplaceAndRegister(void), the error received is: "Attempt to replace an unreplaceable selector" and indeed, it is not in the list of replaceable methods in the Core API reference. 
gcbAVAppOpenDialog = (void *)ASCallbackCreateReplacement(AVAppOpenDialogSEL, ECAVAppOpenDialog);  REPLACE(gAcroViewHFT, AVAppOpenDialogSEL, gcbAVAppOpenDialog);
However, the DMSIntegration sample replaces AVAppOpenDialog as follows:
ACCB1  ASBool   ACCB2   PluginImportReplaceAndRegister  ()
                // Create the replacement function callback(s)
                // Replace AVAppOpenDialog
                gcbAVAppOpenDialog  = ( void *)ASCallbackCreateReplacement(AVAppOpenDialogSEL, 
                                MyAVAppOpenDialog);
                REPLACE(gAcroViewHFT, AVAppOpenDialogSEL,  gcbAVAppOpenDialog);
Am I missing something or is the sample wrong?
Many thanks,
Evan

Answer 1

Hello,
Actually, I was using using Acrobat 9 SDK with Acrobat 8.  When I tried the same code with Acrobat 9, it worked so I assume the method was added to the replaceable list in version 9.
thanks,
Evan