[comp.lang.c] toggle graphics on PC

chuckb@milton.u.washington.edu (Chuck Bass) (05/24/91)

I have been trying to find an efficient way to toggle from graphics mode
to text mode and back without doing any memory saves  using Borland C++
on the PC.  I have found that by setting a certain bit (I don't recall
because I'm not at my PC) I could get it do almost work, only the top section
of the screen is not returned to graphics mode.

I know it can be done because the  compiler can easily switch between the
modes when debugging.  

Does any body have any ideas, I've looked in some graphics books and can't
seem to find any more clues.

Any help would be sincerely appreciated.  Please mail any replies to my  
email seeing as I don't usually keep up on this group.

Thanx. :-)

Chuck Bass
Cooperative for Forest Systems Engineering

chuckb@milton.u.washington.edu
chuckb@max.u.washington.edu

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