How to find button name?

[part-time roadman]

I'm currently trying to find the button name with this but it says 'expression must have class type'.

QPushButton* button = (QPushButton*)sender();
QString btn = button.objectName();

[mrjj]

Hi
When casting QWidgets please use the Qt version and not c-casts.

void MainWindow::on_pushButton_2_clicked()
{

    QPushButton *but = qobject_cast<QPushButton * >( sender() );
    if (but)
        qDebug() << but ->objectName();
}

Note that if sender is not a QPushButtonm then "but" will be null and will crash
if you use it. Hence always use the if check :)