Game Programming using Qt 5 Beginner's Guide - Second Edition

Time for action – Changing the texts on the labels from the code

Printing text to the console is not as impressive as changing the text in our form. We don't have GUI for letting users enter their names yet, so we'll hardcode some names for now. Let's change the implementation of our slot to the following:

void MainWindow::startNewGame()
{
    ui->player1Name->setText(tr("Alice"));
    ui->player2Name->setText(tr("Bob"));
}

Now, when you run the application and click on the button, the labels in the form will change. Let's break down this code into pieces:

• As mentioned earlier, the first label's object is accessible in our class as ui->player1Name and has the QLabel * type.
• We're calling the setText method of the QLabel class. This is the setter ...