Painting on top of QAxWidget

[astodolski]

I host an ActiveX control which displays video. It is wrapped in QAxWidget. I try painting within QAxWidget but it always appears behind:

@
void MainWindow::paintEvent(QPaintEvent* e)
{
QMainWindow::paintEvent(e);
QPainter p(this);
p.setPen(Qt::red);
p.drawRect(10,10,100,100);
p.end();
}
@

I can see the left top and left bottom corners of the rect to know it's drawn but don't understand how to get the z-order changed. The items are laid out in QDesigner. Below is some of the derived header from the UI compiler:

ui_mainwindow.h
@
centralWidget = new QWidget(MainWindow);
centralWidget->setObjectName(QStringLiteral("centralWidget"));
gridLayout = new QGridLayout(centralWidget);
gridLayout->setSpacing(6);
gridLayout->setContentsMargins(11, 11, 11, 11);
gridLayout->setObjectName(QStringLiteral("gridLayout"));
HDVideo = new QAxWidget(centralWidget);
HDVideo->setControl(QStringLiteral("{cb1671db-6c24-4c48-b5f9-8276d135501e}"));
HDVideo->setObjectName(QStringLiteral("HDVideo"));

    gridLayout->addWidget(HDVideo, 0, 0, 1, 1);

@

I've tried calling ui->HDVideo->lower as well as ui->HDVideo->stackUnder(this) which doesn't work. How can you paint on a QAxWidget?