3

I have 2 widgets:
widgets
One of them is background(semi-transparent), second contains other widgets(without background)
Can I make a blur behind window like this?
enter image description here

Dmitry Bardyshev
  • 95
  • 9
  • 1
    I guess you can hijack the parent's paint event and append a blur in the children's rect and do the alpha blending mormally. For example, sub class the widget's class, re-implement paint event, add to the end: if background is visible, do a blur in the background's rect. Also this might be helpful http://stackoverflow.com/questions/19383427/blur-effect-over-a-qwidget-in-qt – user3528438 Jan 04 '16 at 22:29
  • have you found a solution? I'm looking for the same. – ofer dofer Jul 10 '16 at 20:42

1 Answers1

0

I have 2 widgets: One of them is background(semi-transparent), second contains other widgets(without background)

QLCDNumber is a widget of such kind.

That is doable and one of the good examples is: C++,Qt QMainWindow Transparent Background Example. But if you need to make it semi-transparent or lower the transparency you can do something like:

// mind the last component of rgba
mainwindow->setStyleSheet("QMainWindow{background-color: rgba(255, 255, 255, 127)};");
Alexander V
  • 8,351
  • 4
  • 38
  • 47