outMsg.Init(TestModuleID, buf, sizeof(buf));
outMsg.Init(kTestModuleID, buf, sizeof(buf));
    static void HandleMsg(ipcClientHandle client, const ipcMessage *msg)    {        printf("*** TestModule::HandleMsg [%s]\n", msg->Data());        ipcMessage outMsg;        static const char buf[] = "pong";        outMsg.Init(TestModuleID, buf, sizeof(buf));        IPC_SendMsg(client, &outMsg);    }