Go to /usr/people/4Dgifts/iristools/imgtools, the source file scrsave.c is what snapshot uses to save the screen. -- Brent L. Bates NASA-Langley Research Center M.S. 361 Hampton, Virginia 23665-5225 (804) 864-2854 E-mail: blbates at aero4.larc.nasa.gov or blbates at aero2.larc.nasa.gov