Hi there :) Google turned out to be very useless to

Question

Hi there :) Google turned out to be very useless to

me on this case (returning only results for android or other unrelated stuff) so maybe you can help me:

I'm trying to create a display overlay for an external fullscreen application. This should not interfere with the original application in any way and is just supposed to signal a state of the application. So it's somewhat like the NVIDEA gaming overlay displaying FPS.
Tbh, I don't really have a clue on how to achieve this. Guess I'd need a transparent gui that is always-on-top?

Any help highly apprechiated :)

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17.07.2018

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Roman Sharkov · Accepted Answer

then I've bad news for you.. if you're not the vendor of the video graphics driver your machine is running, like NVIDIA is, then you'll have a very hard time implementing a screen-overlay-app that works with actual fullscreen apps the only thing you can do is creating a transparent, borderless window the size of your screen and give it the parameter (don't remember the name) for transitive input events and draw stuff on it.. but this won't work with apps in fullscreen mode which bypass the window manager drawing directly to the frame buffer

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Hi there :) Google turned out to be very useless to

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