Strange problem in handling a notifier.

Question

hi,
while trying to handling the a notifier named kAIDocumentWritePreprocessNotifier( AIDocumentation.h) ----
If I copied (ctrl + c ) the content of current ai document, regardless of pasting(ctrl +v ) and closing
the application (Ai)  without saving(ctrl +s) the document, It still executing  Notify( AINotifierMessage* message )  for 2 times.
It should not execute when I am closing document with saving.
However it is not the case when no copy command is done on document.
I have checked this notifier with SDK sample and I found same problem. I tried the following code --
///////Start//////
// Register the notifier
ASErr ProjectNamePlugin::AddNotifier(SPInterfaceMessage *message)
     ASErr result = kNoErr;
try {
     result = sAINotifier->AddNotifier(fPluginRef, " Notifier", kAIDocumentWritePreprocessNotifier, &fNotifyHandle);
     aisdk::check_ai_error(result);
catch (ai::Error& ex) {
     result = ex;
catch(...)
     result = kCantHappenErr;
   rreturn result;
//Respond to the notifier
SErr ProjectNamePlugin::Notify(AINotifierMessage* message)
     ASErr result = kNoErr;
try
     if (message->notifier == fNotifyHandle)
          sADMBasic->MessageAlert("inside Notifier");
          aisdk::check_ai_error(result);
catch (ai::Error& ex) {
     result = ex;
catch(...)
     result = kCantHappenErr;
return result;
///////End//////
plz help.....

Answer 1

Sorry, I'm a little unclear on what the problem is. I think you're saying that if you subscribe to the kAIDocumentWritePreprocessNotifier you receive it twice, but only if you use CTRL+C?
I did a little testing, and it looks like you're partially right. You do get the kAIDocumentWritePreprocessNotifier twice when you quit while a document is open, but I get that twice even if I just open a document and immediately quit. If I open a document and close it immediately, I don't get the notifier. If I open a document selection something in the document, hit CTRL+C and then close the document, I get the kAIDocumentWritePreprocessNotifier but only once.
Given the documentation on the notifier, it does seem like somethign wacky is going on. I'm not sure why its being sent. The notifierData that comes with the message doesn't seem to include the document handle (unlike other document related notifiers) so you can't use that. I think your best bet is to track other notifiers, like kAIMetadataSyncNotifier, which is sent before a save. If you don't see that, I think you're safe to ignore the kAIDocumentWritePreprocessNotifier.