Semi transparent overlay with opaque child widgets

Hi All,

I want to create opaque child widget over semi transparent parent widget.

If I so setWindowOpacity(.4) parent become transparent and same is propagated to child, I tired with setstylesheet

Code:

---

QString qStrStyleSheet(QString("  QDialog {\
								   background-color: rgba(100,100,100,20%);\
								   }"));
 
	setStyleSheet(qStrStyleSheet);

---

but was not able to draw it properly, what I saw was black parent (opaque).

I also tried using

Code:

---

setAttribute(Qt::WA_TranslucentBackground, true); 
setWindowFlags(Qt::FramelessWindowHint)

---

, this gives exact behavior but parent is transparent, however I want it to be semi-transparent (40%).

I have also tried overwriting paintEvent

Code:

---

QPalette palette;
palette.setColor(backgroundRole(), QColor(194,194,194,40));
setPalette(palette);

---

After searching in google I came across this link , still it's not working for me.

I am using Qt-4.6 with windows-7

Can anyone help me with this.

Could you post a sample image of how you want?

Also be aware that a widget and a window are handled differently in this case.

Thanks for your prompt reply, this issue is resolved.

Code:

---

setAutoFillBackground(false);
setWindowFlags(Qt::FramelessWindowHint);
setAttribute(Qt::WA_TranslucentBackground);

---

Code:

---

void MyWidget::paintEvent(QPaintEvent *)
{
	QPainter painter(this);
	painter.setRenderHint(QPainter::Antialiasing);
	painter.setPen(Qt::NoPen);
	painter.setBrush(QColor(100,100,100, 127));
 
	painter.drawRect(0, 0, width(),  height());
}

---

It's been helpful, thanks!