windows GUI inside game

[willxeta543]

I seen a youtube video of someone using the windows GUI inside a game, World Of Warcraft, and I was wondering how this is possible

 

[Berton]

Too bad you didn't post a link to that video so we could see it. The main thing is that Windows is a GUI, Graphical User Interface. Could be the window on top of the game's window was opened after the game and is set to "Always on top", but that's just a guess as a large number of games want all the resources available for themselves.