Adding Menu Bar with no result..

1XU7

Hello!!

I have created a QMainWindow based form (that does not have .ui) and configured it for having MenuBar available and activated.. but there is no menu bar visible in my application.. do i'm missing something? Thanks..

Christian Ehrlicher

Works fine for me:

#include <QtWidgets>

int main(int argc, char *argv[])
{
    QApplication::setAttribute(Qt::AA_DontUseNativeDialogs);
    QMainWindow mainWin;
    mainWin.menuBar()->addMenu(new QMenu("Preferences"));
    mainWin.show();
    return app.exec();
}

Christian Ehrlicher

Please do not post images but actual text - it's unreadable.
What I can see is that you create a second QMenuBar for unknown reasons. Use the one from QMainWindow or properly set the QMenuBar to the QMainWindow.

1XU7

Right, thanks... im sorry.. just put an image to illustrate result app window and code...

Anonymous_Banned275

The image posted is perfectly readable and sufficient to illustrate the problem. Why do you question OP reason for adding the second menubar ? His reasoning is immaterial to help resolve the issue. Perhaps edit your post to concentrate / expand on your valid , axtual solutions . ( I wrote this while the OP replied ).

Christian Ehrlicher

@AnneRanch said in Adding Menu Bar with no result..:

Why do you question OP reason for adding the second menubar

Because he does and I also properly explained what's wrong - sorry if it's to complicated for you to understand.

1XU7

Thanks for answering..

I have tryied using the default menuBar(),

Header:

#ifndef WPRINCIPAL_H
#define WPRINCIPAL_H

#include <QMainWindow>
class QMenu;
class QAction;

class wprincipal : public QMainWindow{
	Q_OBJECT

private:
   	QMenu* menu0 {nullptr};       //File...
   	QAction* act00 {nullptr};     //File -> Preferences...

protected slots:
   	void ontrigger_act00();

public:
   	explicit wprincipal(QWidget* _p = nullptr);
   	~wprincipal(){}
};

#endif // WPRINCIPAL_H

Source:

#include "wprincipal.h"
#include <QMenuBar>
#include <QMenu>

wprincipal::wprincipal(QWidget* _p) : QMainWindow(_p){
	act00 = new QAction;
	act00->setText("Preferences");
	menu0 = new QMenu;
	menuBar()->addMenu(menu0);
	menu0->addAction(act00);

}

void wprincipal::ontrigger_act00(){

}

...but still something happens that is not being shown:

Christian Ehrlicher

Works fine for me:

#include <QtWidgets>

int main(int argc, char *argv[])
{
    QApplication::setAttribute(Qt::AA_DontUseNativeDialogs);
    QMainWindow mainWin;
    mainWin.menuBar()->addMenu(new QMenu("Preferences"));
    mainWin.show();
    return app.exec();
}

1XU7

Oops, thats weird... i see no big difference between both codes...
i will isolate the problem in a new project..
thanks.

Christian Ehrlicher

@1XU7 : I also don't see a big difference so can't tell what's wrong.

1XU7

Missed the Title (you wrote it in constructor)

menu0 = new QMenu("File");

//or

menu0 = new QMenu;
menu0->setTitle("File");

If i miss the title, then bar is not being shown..

Thanks.