Old Andy Kramek trick from WhilFest years ago...I can't recall exactly how he said it

Years ago (2003?) at WhilFest (Great Lakes Great Databases Workshop), speaker and Fox great Andy Kramek showed us some cool alternate refresh/repaint routine, and I think it was where he said LockScreen = .T. and then set the _screen.visible = .F., but can't recall.

Does anybody remember that?  This is one of those things that has always bugged me and I wanted to get resolution on it.

tia, --Mike

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