How to show a window widget...

[agent007se]

... from a QMainWindow ? (but not in main.cpp)

in CLinkGUI.cpp :

void CLinkGUI::tests()
{
    ui_sofImpl test;
    test.show();
}

void CLinkGUI::tests()
{
    ui_sofImpl test;
    test.show();
}

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When I do this :
in main.cpp :

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    ui_murefImpl window;
    window.show();
 
    ui_sofImpl test;
    test.show();
 
    return app.exec();
}

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    ui_murefImpl window;
    window.show();

    ui_sofImpl test;
    test.show();

    return app.exec();
}

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it works but that is not what I want...

my not modified main.cpp :

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    ui_murefImpl window;
    window.show();
 
    return app.exec();
}

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    ui_murefImpl window;
    window.show();

    return app.exec();
}

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The first code (in CLinkGUI.cpp) shows me my widget but close it imediately...

Thanks !

Please delete this topic -> I found the solution : Read the FAQ !

[munna]

The first code (in CLinkGUI.cpp) shows me my widget but close it imediately...

Because the widget is created in the function tests() and destroyed once out of the function.

It should rather be

void CLinkGUI::tests()
{
     ui_sofImpl *test = new ui_sofImpl;
     test->show();
}

void CLinkGUI::tests()
{
     ui_sofImpl *test = new ui_sofImpl;
     test->show();
}

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Make sure you set the widget attribute Qt::WA_DeleteOnClose so that the widget is deleted automatically when it is closed.

[agent007se]

Because the widget is created in the function tests() and destroyed once out of the function.

It should rather be

void CLinkGUI::tests()
{
     ui_sofImpl *test = new ui_sofImpl;
     test->show();
}

void CLinkGUI::tests()
{
     ui_sofImpl *test = new ui_sofImpl;
     test->show();
}

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Make sure you set the widget attribute Qt::WA_DeleteOnClose so that the widget is deleted automatically when it is closed.

I just added static before declaration of the variable :

static ui_sofImpl test;

static ui_sofImpl test;

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[wysota]

I just added static before declaration of the variable

Take a look at the FAQ please...