How to print text with the right font

[Mihaill]

Hi!
How to print text with the right font?
If I do so, the font does not change.

    QString testText = "test1";

    int id = QFontDatabase::addApplicationFont(":/fonts/code128.ttf"); 
    QString family = QFontDatabase::applicationFontFamilies(id).at(0); 
    QFont font(family);  
    font.setPixelSize(30);

    QStaticText testStaticText;
    testStaticText.setText(testText);
    QTransform  transform;
    testStaticText.prepare(transform,font);

    QPrinter printer;

    QPainter painter;
    painter.begin(&printer);
    painter.drawStaticText(0, 0, testStaticText);
    painter.end();

[Mihaill]

it is work

    painter.setFont(font);
    painter.drawText(0, 0, 200, 30, Qt::AlignLeft|Qt::AlignTop, testText); //int x, int y, int width, int height,