bitmapped EGA graphics

[Dave Treece]

This is my first posting so please let me know if I am doing
something wrong.  I was wondering if anyone out there has had any
experience using a XENIX 386 system and EGA monitor to do bit mapped
graphics.  I am developing a program that will display (real-time)
ECG wave-forms from multiple patients simultaneously.  I have tried
using the CGI (Computer Graphics Interface) package and that is too
slow.  I have dabbled in using ioctls but I couldn't get a single
pixel lit up when I tried to address the memory directly through
the EGA ports like I did successfully on my MSDOS machine.  I am
willing to pay anything for a commercial package if it will help
or if someone has any pointers to any code that writes a pixel or
two directly to EGA memory, I would be much obliged.  Any help
proffered is greatly appreciated.
				-David Beccue
				Cygnus Microsystems Inc.