Image as window form

[Ockonal]

Hello, I want to make window frame using some picture. Window shouldn't have borders, titlebars, etc. It also should be hidden from active windows list (in taskbar).

Second part of question I did with:

this->setAttribute(Qt::WA_NoSystemBackground);
this->setAttribute(Qt::WA_QuitOnClose);
 
this->setAutoFillBackground(true);
 
this->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool);

this->setAttribute(Qt::WA_NoSystemBackground);
this->setAttribute(Qt::WA_QuitOnClose);

this->setAutoFillBackground(true);

this->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool);

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for new class which inherits QMainWindow. It's hidden, for example, at gnome taskbar, but in Awn (awant windows navigator) I seed it in the list of active windows .

What about first part. I did this some time ago with QRegion, QPixmap and mask in overloaded paintEvent. I've lost the code. Can you help me with this?

I tried the code like:

void MainWindow::paintEvent(QPaintEvent * event)
{
    QPainter painter(this);
 
    QPixmap pixmap = QPixmap();
    pixmap.load("/home/my_image.jpg");
 
    painter.drawPixmap(event->rect(), pixmap);
}

void MainWindow::paintEvent(QPaintEvent * event)
{
    QPainter painter(this);

    QPixmap pixmap = QPixmap();
    pixmap.load("/home/my_image.jpg");

    painter.drawPixmap(event->rect(), pixmap);
}

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But I see my picture and black rectangle under it.