| From: | Simon Hitchen |
| Date: | 30 Aug 99 at 09:48:43 |
| Subject: | Re: Filter stuff (Was: VisualPrefs problems) |
Hello James L Boyd,
> Probably the filter thing will be fixed by this too, but
> here's how to turn the filter on and off :
>
> (Hardware Poke, no Enforcer hits :)
>
> Poke.b $bfe001,0 - on
> Poke.b $bfe001,2 - off
>
> Weird thing though - if you Peek this location, it'll read -2 if it's
> on (0 if off), even if you poke it with 2 just before peeking it...anyone
> know why (just out of curiosity)?
'Cos you're peeking the whole byte, the rest of the bits could be 0 or
1 so it could return any byte value IYSWIM :)
You could try this :)
; Record filter setting at the start so we can restore
; it later in a nice user friendly way :)
filtstate.b=Peek.b($bfe001)
; Set the filter on or off as many times as you
; need to in your proggy by using...
BCLR #1,$bfe001 ; filter on
; or....
BSET #1,$bfe001 ; filter off
; Restore the original filter settings at the end
If filtstate AND %10
BSET #1,$bfe001 ; filter off
Else
BCLR #1,$bfe001 ; filter on
End If
Simon
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