GRAFSTUF.INC 
author:Don Taylor, Poulsbo, WA
source:TUG May-June 1985 pages 14-24
DESCRIPTION
Provides access to Apple graphics screen. Softcard assumed.

Don Taylor provides routines for Apple users to access graphics.
Only one requirement--

PROGRAMS MUST BE COMPILED WITH THE C (Com) OPTION TO START AT 5000(Hex).

Reason is the program uses the Apple Graphics page 2 which is at
Z80 address $3000-4FFF.

Routines use Applesoft routines for plotting etc.


     Procedure name                Description

Graphwindow(xl,yt,xr,yb:
  integer);			sets window limits
Fullwindow; 			sets limits to maximum
GraphColorMode;			selects HIRES display mode
Textmode;			selects text display mode
Initgraphics			initaizes Apple stuff
Setcolor(color:integer);	selects hires color
Graphbackground(color:integer); paints screen desired color
Getpenposition(var x,y:integer);gets x,y location of pen
Positionpen(x,y:integer);	positions pen without writing
Plot(x,y,color:integer);	plots point in selected color
Draw(x1,y1,x2,y2,color:integer);draws colored line
Saveimage(picname:str80);	saves picture to disk
Loadimage(picname:str80);	loads image from disk

    Function name

Inwindow(x,y:integer):boolean;	returns true if point is in window


GRAFSTUF.INC is for Apple ][, ][+, and ][e.
GRAF.INC is for Apple][ or ][+ with 80 column card.
  (Text mode does nothing).
I have a switch to go between the Apple screens. If you have a
softswitch then put the switching code in the program.