Hi I have some problem. I want to translate my programm on fly. I have this code
Qt Code: 
  1. void MainWindow::changeLanguage(QAction *action)
  2. {
  3.  
  4.     if(action == engLAction){
  5.     QTranslator translator;
  6.         translator.load(QString("programm_en"), "." );
  7.     qApp->installTranslator(&translator);
  8.     }
  9.     else if(action == czeLAction){
  10.     QTranslator translator;
  11.         translator.load(QString("programm_cs"), "." );
  12.     qApp->installTranslator(&translator);
  13.     }
  14.  
  15. }
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before make I use "lupdate programm.pro" and "lrelease programm.pro" then I translate documents in *.ts and use "lrelease programm.pro" again. Then I use make.
But when I try to change language on fly nothing happens Could someone help me, where I make mistake? thanks to all