text: #ifndef ABOUTPROGRAM_H
  #define ABOUTPROGRAM_H
  
  #include <QDialog>
  
  namespace Ui {
  class AboutProgram;
  }
  
  class AboutProgram : public QDialog
  {
      Q_OBJECT
  
  public:
      explicit AboutProgram(QWidget *parent = nullptr);
      ~AboutProgram();
  
  private slots:
      void on_pushButton_clicked();
  
  private:
      Ui::AboutProgram *ui;
  };
  
  #endif // ABOUTPROGRAM_H
  