text: #include <QApplication>
  #include <QDebug>
  #include "window.h"
  #include "data_provider.h"
  
  int main(int argc, char *argv[])
  {
      QApplication app(argc, argv);
      DataProvider dp;
      Window window;
  
      QObject::connect(&dp, &DataProvider::img_captured, &window, &Window::handleImgCaptured);
  
      window.setFixedSize(480, 800);
      window.setStyleSheet("background-color: white;");
      window.show();
  
      return app.exec();
  }
  