Treat NULL as character in QByteArray

I am using QT4.8 and I need to send an array to another device which includes some 0x00 values. However, QByteArray treats 0x00 value as of the end of the string. I wonder if it is even possible, what I am trying to achieve. here is my test code:-

zeroissue::zeroissue(QWidget *parent, Qt::WFlags flags)
    : QMainWindow(parent, flags)
{
    ui.setupUi(this);
    unsigned char zero = 0x00;
    QByteArray test;
    test.append("this is a test");
    test.append(zero);
    test.append("test complete");
    qDebug() << "test = " << test;
}

Please suggest me a way to treat 0x00 as a character in QByteArray.

I wonder if it is even possible,

Yes, it is. From QByteArray's documentation:

QByteArray can be used to store both raw bytes (including '\0's) and traditional 8-bit '\0'-terminated strings.

The following main funtion works as expected

int main(int argc, char** argv)
{
   char null_char = '\0';
   QByteArray test;
   test.append("this is a test");
   std::cout << "size(): " << test.size() << std::endl;

   test.append(null_char);
   std::cout << "size(): " << test.size() << std::endl;

   test.append("test complete");
   std::cout << "size(): " << test.size() << std::endl;

   return 0;
}

and produces the following expected output:

size(): 14
size(): 15
size(): 28

When you use

qDebug() << "test = " << test;

you should see the embedded null character in the output. See https://doc.qt.io/qt-5/qdebug.html#operator-lt-lt-20 for additional details.