QMdiSubWindow and WindowFlags on MacOSX

[jazzycamel]

Hi everyone,

I'm need to remove the window controls from a QMdiSubWindow such that the window can't be resized or closed by the user. The following code works on Windows7 and Linux Mint 14 (Ubuntu-esque) but doesn't work on MacOSX (10.8.2 Mountain Lion). By "doesn't work" I mean the window controls are unaffected and are present and work as normal:

@
#include <QtGui>

class MainWindow : public QMainWindow {
public:
MainWindow(QWidget *parent=0, Qt::WindowFlags flags=0)
: QMainWindow(parent,flags)
{
mdi=new QMdiArea(this);
setCentralWidget(mdi);

    for(int i=0; i<3; i++)
        mdi->addSubWindow(new QWidget(this), Qt::SubWindow|Qt::WindowTitleHint|Qt::CustomizeWindowHint);
}

private:
QMdiArea *mdi;
};

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();

return a.exec();

}
@

However, if I set these flags on a standalone window as follows they work just fine:

@
#include <QtGui>

class Widget : public QWidget {
public:
Widget(QWidget *parent=0)
: QWidget(parent)
{
setWindowFlags(Qt::SubWindow|Qt::WindowTitleHint|Qt::CustomizeWindowHint);
}
};

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();

return a.exec();

}
@

Has anyone experienced this issue or got any thoughts on how to solve it? Any help or suggestions will be greatly appreciated.