Qt5 with MacOS : How to add entries in the application menu?

Question

I'm writing an app using Qt5. That app runs on Window, Linux and now on MacOS.

In order to make sure my app meets the apple's requirements, I would like to add entries in the application menu (preferences, about...).

Does anyone know how to do so ?

An old doc about Qt4.8 describes that the menu is handle by Qt but it doesn't describe what to do.

Answer 1

I saw this question and was looking for an answer. The comments were helpful, but here is a more complete code example that should help others out.

mainwindow.h: Add these include statements

#include <QMenu>
#include <QAction>

...

private:
    Ui::MainWindow *ui;
    QMenu *mainMenu;
    QAction *aboutAction;

mainwindow.cpp: initializer function

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    this->aboutAction = new QAction(0);
    this->aboutAction->setMenuRole(QAction::AboutRole);
    ui->setupUi(this);
    this->mainMenuBar = new QMenuBar(0);
    this->mainMenu = new QMenu(0);
    this->mainMenuBar->addMenu(this->mainMenu);
    this->mainMenu->addAction(this->aboutAction);
    this->setMenuBar(this->mainMenuBar);
}

Using QT 5.3.2 and Snow Leopard OS X 10.6.8, QT Creator 3.0.1.

Since you are using the AboutRole, there is no need to specify the QString parameter of QAction. It automatically defaults to what you want.