#includeIn this example, we create a new QFont object and set its family to "Courier". We then call setFixedPitch and pass in true, indicating that we want the font to have a fixed pitch. We then create a QLabel and set its font to our new QFont object. Finally, we show the label using the QApplication's exec method. This example creates a label with the text "This is some text in a fixed pitch font." and displays it using a fixed pitch font. The QFont class is part of the Qt library.#include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QFont font("Courier"); font.setFixedPitch(true); QLabel label("This is some text in a fixed pitch font."); label.setFont(font); label.show(); return app.exec(); }