select folder which contain the n number of .bin file

[anh5kor]

I had a requirement where i have to select n number of .bin file for reading purpose.
So I implemented the code like below which is working fine

QDir directory("Documents");
    QString path = directory.filePath(" ");
    QStringList BinFileNames = QFileDialog::getOpenFileNames(this,tr("Open File"),path,tr(".bin"));
    BinFileSize = BinFileNames.size();

QDir directory("Documents");
    QString path = directory.filePath(" ");
    QStringList BinFileNames = QFileDialog::getOpenFileNames(this,tr("Open File"),path,tr(".bin"));
    BinFileSize = BinFileNames.size();

To copy to clipboard, switch view to plain text mode 

but now the requirement is like i have to select only the folder which contain all the .bin file.
So i tired to implement like below

QString Directory = QFileDialog::getExistingDirectory(this, tr("Choose Or Create Directory"),
                                                             "/home",
                                                               QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);

QString Directory = QFileDialog::getExistingDirectory(this, tr("Choose Or Create Directory"),
                                                             "/home",
                                                               QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);

To copy to clipboard, switch view to plain text mode 

but not getting how can i save all file path in a QStringList.
So in shot how can I get all the file form the selected folder and open for read purpose