Take a screenshot of a running screensaver

I tried PrtScr, but no go.

Is there a way to take a screenshot of a running screensaver?

I am using xscreensaver.

Thanks

Hi @fixit7, My first thought, assuming you can run the screensaver at will, is mate-screenshot with a 10 second delay like this:

mate-screenshot -d 10

For a video capture I used recordmydesktop in the past.

Thanks.
The screensaver asks for a file name.

Will see if there is a switch or look at other screensavers.