VGA_bitplanes.c VGA_bitplanes.c is a TURBO_C program (using BGI) and demonstates the possibilities of writing to different bitplanes. This can be used to have different graphics pages that can be turned on and off, without having to redraw the whole image again every time. Run the program and hit a key several times. Bas Leeflang and Albert van Kuik Bijvoet Center for biomolecular research Dep. of Bio-organic chemistry Utrecht University The Netherlands E-mail: leef@ruucmr.chem.ruu.nl