Hallo,

my program is split into several cpp and h files.

The GUI window is in dialog.cpp and dialog.h

The scan is in scan.cpp and scan. h

Save is in file.cpp and file.h

Scan is storing the results in a public QVector. When i hit a button in GUI i can see the output of QVector in the debug. When I hit save, nothing from the QVector is saved. Debugger shows QVector empty.

dialog.h
Qt Code: 
  1. private:
  2.     Ui::Dialog *ui;    
  3.     FM_rds mRds;
  4.     Scan mScan;
  5.     Tune mTune;
  6.     Mute mMute;
  7.     File mFile;
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dialog.cpp (show content of QVector in Debug and save button)
Qt Code: 
  1. void Dialog::on_pushButton_clicked()
  2. {
  3.     qDebug() << "dab_vev_vec: " << mScan.dab_vec_vec;
  4. }
  5.  
  6. void Dialog::on_pushButton_2_clicked()
  7. {
  8.     mFile.dab_write_file();
  9. }
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file.h
Qt Code: 
  1. #include <scan.h>
  2.  
  3. private:
  4.  
  5.     Scan mScan;
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file.cpp
Qt Code: 
  1. for(int i = 0; i < mScan.dab_vec_vec.size(); i++){
  2.  
  3.             dab_vec_vec_to_line = mScan.dab_vec_vec[i][0] + "," + mScan.dab_vec_vec[i][1] + "," + mScan.dab_vec_vec[i][2] + "," + mScan.dab_vec_vec[i][3];
  4.             qDebug() << "i: " << i << "dabvecvectoline: " << dab_vec_vec_to_line;
  5.             unsort_list.append(dab_vec_vec_to_line);       
  6.     }
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scan.h
Qt Code: 
  1. public:
  2.  
  3.     QVector<QVector<QString>> dab_vec_vec;
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