A newbie question in Qt

Question

MainWindow::MainWindow(QWidget *parent) :  
    QMainWindow(parent),  
    ui(new Ui::MainWindow)  
{  
    ui->setupUi(this);  
}

In this secti

Answer 1

This is actually a C++ question. What you're looking at are called initialization lists. The QMainWindow(parent) calls that constructor for MainWindow's superclass (QMainWindow) and ui(new Ui::MainWindow) constructs ui member.