Am I to dumb to close fullscreen VNC Viewer

Hi every one! New to linux, new to the Pi.
Basically, there was a guy at work that was in charge of prgramming this project and one day he just disappeared, so now I have to learn programming and start from scratch with a working one that I am reverse engineering.
There is a full screen VNC viewer that run off a pythin script and of course there is no X to close it. Usual Keyboard shortcut don’t work either. I know I can kill it with the Ctr+Alt+F2 and enter the command, but I don’t have the username + Password so this is also a no go.
Is there anyway I could simply kill the VNC so I can see the desktop?

Thank you!

If the VNC client is remmina, you should be able to exit full screen mode using RIGHT CTRL + F
(And by that I mean the CTRL key that’s on the right, not the left one)

Dang not working. I think it’s tight VNC but I can’t be 100% sure until I find a way to close it.

What’s the setup like? Is the Pi running the VNC client? What is the VNC server?
Also, is the VNC client automatically started when you start the computer?

TightVNC … “CTRL+ALT+SHIFT+F” to exit full screen mode.

Well, I had to make some people mad for a minut but turned off the AP it was connecting on the time for VNC to fail and close and removed the IP in the Python script. Now the fun begin.
Thx for the help!