http://forum.thegamecreators.com/?m=forum_view&t=159535&b=22
... like the 6th post down on the forum right now. Although I suppose you'd want this:
http://forum.thegamecreators.com/?m=forum_view&t=154007&b=22
Or even more simply:
Quote: "Instead of dbSetWindowOff, use dbSetWindowLayout to remove the title bar and window border. (Look up parameters in the help, but 0,0,0 should work.) Used together with dbMaximizeWindow or dbSetWindowPosition, the visual effect is the same, and you can Alt-Tab out of it and back without losing the content. It won't solve losing the graphic context with Ctrl Alt Del, though.
"