How to display your image on top of a full screen application?

Question

Python

Good afternoon, there is a full screen application that displays 3D graphics in Linux Mint.
You need to display your monitoring data on top of this image. I plan to do data output in Python. I can create a screen form, display data on the screen. But how to make an overlay?

Answer 1

Did similar under Windows on PyQt.
In what an essence:
- we create a window;
- we display the necessary information in this window;
- make the window a tooltip (on top of all windows, without a frame and a cap):
self.setWindowFlags(QtCore.Qt.ToolTip);
- or simply on top of all windows:
If you need a window of arbitrary shape, then you can peep here .