#include <Handler.h>#include <Looper.h>#include <Message.h>#include <stdio.h>const int32 kMessage = 'MeXX';class Looper : public BLooper {public:Looper();virtual void MessageReceived(BMessage *message);};class Handler : public BHandler {public:Handler();virtual void MessageReceived(BMessage *message);};int main(){Looper *looper = new Looper();Handler *handler = new Handler();looper->AddHandler(new Handler());looper->AddHandler(new Handler());looper->AddHandler(handler);looper->AddHandler(new Handler());looper->AddHandler(new Handler());looper->Run();looper->PostMessage(new BMessage(kMessage), handler);snooze(1000000);looper->Lock();looper->Quit();}Looper::Looper():BLooper("looper"){}voidLooper::MessageReceived(BMessage *message){switch (message->what) {case kMessage:printf("Message received by Looper\n");break;default:BLooper::MessageReceived(message);break;}}Handler::Handler():BHandler("handler"){}voidHandler::MessageReceived(BMessage *message){switch (message->what) {default:BHandler::MessageReceived(message);break;}}