icesimon's Blog

Just use some simple steps can let you check debug messages!

1. Open the main.cpp in your project. Only need to add two code snippets!

2. First： Insert this before int main

   void myMessageOutput(QtMsgType type, const char* msg) 
   

   {
   std::fprintf(stdout, "%s\n", msg);
   std::fflush (stdout);
   }

3. Second：Inset snippet after Application app(argc, argv);

   qInstallMsgHandler(myMessageOutput);
   

4. Here are the whole code snippets

   void myMessageOutput(QtMsgType type, const char* msg) 
   {
       std::fprintf(stdout, "%s\n", msg);
       std::fflush(stdout);
   }
   Q_DECL_EXPORT int main(int argc, char **argv) 
   {
       Application app(argc, argv);
       qInstallMsgHandler(myMessageOutput);
   
       // localization support
       QTranslator translator;
       QString locale_string = QLocale().name();
       QString filename = QString( "YourApp_%1" ).arg( locale_string );
       if (translator.load(filename, "app/native/qm")) 
       {
           app.installTranslator( &translator );
       }
       new YourApp(&app);
       return Application::exec();
   }
   

Enjoy all your dubeg messages! ^^