Menubar in mainwindow form

[jacek]

Try this:

#include <QApplication>
#include <QMainWindow>
 
#include "ui_test.h"
 
int main(int argc, char *argv[]){
    QApplication app(argc, argv);
    QMainWindow *window = new QMainWindow();
    Ui::Test ui;
    ui.setupUi(window);
 
    window->show();
    return app.exec();
}

#include <QApplication>
#include <QMainWindow>
 
#include "ui_test.h"

int main(int argc, char *argv[]){
    QApplication app(argc, argv);
    QMainWindow *window = new QMainWindow();
    Ui::Test ui;
    ui.setupUi(window);
    
    window->show();
    return app.exec();
}

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but first check whether you have set the objectName property of your form to "Test".