Jeff Blakeney wrote:
> 
> >Which brings up the argument of how many colors can the Apple display
> >in hi-res mode?
> 
> The most I've ever heard of is ten colours.

It might be that the answer is hardware dependent, but my experience
is: twelve.
Back in my //e days, I experimented a bit with a colour TV. But mind
you, it was a European Apple and a PAL TV. However, the program below
works on a IIgs as well, and on Gus. It displays all twelve available colors.
Line 5 is a safety catch in case you start with 80 columns. Line 15 is
only for the benefit of IIgses: it changes the border color of the
screen, so you can see that the HGR colors displayed are indeed the
colors we want to display. The rest should be self evident...

 5  PRINT  CHR$ (21)
 10  TEXT : POKE 34,20: FOR C = 0 TO 15: HGR : HOME : READ C1,C2,X
 15  IF  PEEK (65055) - 96 THEN  POKE 49204,C
 20  PRINT "Color "C;: IF X < 0 THEN  PRINT " is unavailable";: GOTO 50
 30  FOR X = X + 6 TO 273 STEP 14: HCOLOR= C1: HPLOT X,0 TO X,150
 40  HCOLOR= C2: HPLOT X + 1,0 TO X + 1,150: NEXT 
 50  PRINT : PRINT : INPUT "Press return...";X$
 60  NEXT 
 1000  DATA 0,0,0
 1001  DATA 0,0,-1
 1002  DATA 7,0,0
 1003  DATA 3,0,0
 1004  DATA 0,0,-1
 1005  DATA 0,0,-1
 1006  DATA 7,4,0
 1007  DATA 3,4,0
 1008  DATA 7,0,7
 1009  DATA 7,4,7
 1010  DATA 0,0,-1
 1011  DATA 7,3,7
 1012  DATA 0,3,0
 1013  DATA 3,4,7
 1014  DATA 7,3,0
 1015  DATA 3,3,0

-- 
Groetjes, Pim

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