How about call filter module from automation module plug-in?

DescriptorTypeID hiddenEventID;

  Auto_Desc descriptor;

  Auto_Desc result(false);

  sPSActionControl->StringIDToTypeID(HiddenUniqueString, &hiddenEventID);

  error = sPSActionControl->Play(&result,

    hiddenEventID,

    descriptor.get(),

    plugInDialogSilent);

  if(error != kSPNoError)

  MessageBoxA(NULL, "Error", "Error", MB_OK);

HiddenUniqueString is the unique value.

What's the reason?

Please explain with the simple code.