MDI - Child -- Restore Down

[QT8seven]

I am messing with MDI windows and, well, my child can be maximized and restored down, but the restore-down button is invisible. It does work, it is clickable, I just can't see it. Did I mess something up, is my QT install bad, or is this a bug?

[Lykurg]

How should we tell, if you don't show us your actual code. A minimal, compilable example, reproducing the problem would be best.

[QT8seven]

Well, I was hoping perhaps it was a common issue where someone would know the problem. Here is a very minimal example that reproduces the behavior:

#include <QtGui>
 
 
class MainWin : public QMainWindow
{
private:
public:
    MainWin()
    {
        QWorkspace* mArea = new QWorkspace();
        setCentralWidget(mArea);
        QWidget* nWidget = new QWidget();
        mArea->addWindow(nWidget);
    }
    ~MainWin()
    {
 
    }
};
 
int main(int argC, char** argV)
{
    QApplication myApp(argC,argV);
    MainWin A;
    A.show();
    return myApp.exec();
}

#include <QtGui>


class MainWin : public QMainWindow
{
private:
public:
    MainWin()
    {
        QWorkspace* mArea = new QWorkspace();
        setCentralWidget(mArea);
        QWidget* nWidget = new QWidget();
        mArea->addWindow(nWidget);
    }
    ~MainWin()
    {

    }
};

int main(int argC, char** argV)
{
    QApplication myApp(argC,argV);
    MainWin A;
    A.show();
    return myApp.exec();
}

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The maximize button always appears, but the restore-down button while usable is invisible.

[Lykurg]

QWorkspace is deprecated. Use QMdiArea with QMidiArea::addSubWindow() instead. There you shouldn't face the problems.

[QT8seven]

Thank you, looks like I've got reading to do here.