64 bit Illustrator CS6 plug-in - CSXSEvent bad pointers

Question

Hi
I am having difficulty with a x64 bit compile of our plug-in with regards to PlugPlug events dispatched from Flash panels. Under 32bit operation, all seems to be fine. XML is dispatched from Flash and it received without problem in the C++ plug-in. However under 64bit architecture, the CSXSEvent is received with invalid pointers. Here's the data received:
Under 32bit operation, the data field contains XML content without fail. However here it's acting strangely. I've tried compiling the Flash extension under different SDK versions (Extension Builder 3.4 & 4.5) plus also tried the CSXS extensions 2.0 & 3.0 but with no joy. The event is getting captured correctly, firing into the plug-in instantly, but the appId, extensionId and data are all missing.
I'm not doing anything special from Flash, this works fine under CS6 x32:
            protected function btnLogin_clickHandler(event:MouseEvent):void
                var objSaveEvent : CSXSEvent = new CSXSEvent("net.desl.ai.events.Security.Login", CSXSEventScope.APPLICATION);
                var objData: XML = new XML("<login><username>" + tbUsername.text + "</username><password>" + tbPassword.text + "</password></login>");
                objSaveEvent.data = objData;
                //Send the data to the plugin
                var blnResult : Boolean = CSXSInterface.getInstance().dispatchEvent(objSaveEvent);
Any help appreciated, or pointers of where I should look or have gone wrong.
Thanks

Answer 1

Hi
I have managed to resolve the issue. Here's what I found if it is of any interest to anyone else. I noticed that the event.data bytes were reversed (big/little endian order?). I managed to hack it by reversing the bytes by shifting the bits left and right (event.data << 32 | event.data >> 32). That actually displayed the XML from the Flash panel!
However the dispatch still did not work.
I looked deeper into the CS6 sample FreeGrid and noticed that the "Struct Member Alignment" on the project was set to 8 bytes (/Zp8). The settings on my project was actually set to 4 bytes (/Zp4). On changing that to 8 byte alignment, suddenly all functionality returned back to normal. I'm not sure how PlugPlug was sending the data through, but seemed it was coming into the  CSXSEvent structure incorrectly.
Not sure if this was a silly mistake on my part, but the 32 bit version has been happily working for quite a while now.
I've been using Visual Studio 2008 btw.
Thanks