Communicate between html extension and c++ plugin

Hi All,

I am developing a html extension for InDesign CC2014. There is a scenario where I need to communicate between the extension and C++ InDesign plugin.

I followed the instructions at http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/cs-extension-builder/pdfs/CC_Extension_SDK.pdf and wrote the extension part of the code. The c++ part of the code hasn't changed from the Flex versions so had no problem there.

I tried to invoke the extension from the plugin and it worked. I registered an event in the plugin to listen for and dispatched another event from the plugin. But the panel doesn't seem to listen or dispatch any event. On the c++ plugin part, the registration and dispatch error codes returned were success codes so the problem is not with the plugin.

Here is the code for the html panel,

I register the event to listen for at the time of page load.

function onLoaded() {
    var csInterface = new CSInterface();

 // Register the named event handler
  csInterface.addEventListener("com.mypluginevent.test", myEventHandler); 

}
//Create a named event handler callback function
function myEventHandler(event)
{
  alert("Event captured!");
}

// This function is called on a button click
function onClick()
{
  // Create your local CSInterface instance
  var csInterface = new CSInterface();
  var event = new CSEvent("com.myhtmlevent.test", "APPLICATION"); 

  event.data = "This is a test!";
  csInterface.dispatchEvent(event);
}

Here is the C++ part of the code where I dispatch the "com.mypluginevent.test" event.

csxs::event::Event event = {"com.mypluginevent.test",
                              csxs::event::kEventScopeApplication,
                              "myEventHandler",
                              NULL,
                              NULL};

csxs::event::EventErrorCode err = sdkPlugPlugInstance.DispatchEvent(&event);

I always get success on dispatching the event, yet the extension does not catch it.

Can anyone tell what I am doing wrong?