Re: A83: Ways of Drawing to the Screen?


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Re: A83: Ways of Drawing to the Screen?




what do you mean?  Without displaying it?  Just don't call _grbufcpy_v
until you do all your graphics.. do one at the end.. if you just want a
faster copying, just use Joe's routine from ZGFXL.  I use it in ZTetris 83.
							-Ahmed

At 07:43 PM 10/11/98 EDT, you wrote:
>
>Is there anyway to draw lines ONLY to the Buffer? I need to put many lines to
>the display but I don't want it to look very slow and choppy when doing it...
>If there isn't a direct way to do this, then tell me the best approach to
>doing this...  I was thinking I could turn the contrast way down, draw the
>lines to the display, and set the contrast back to its setting, but then
it is
>still faintly visible, so that doesn't work to well... What if I were to shut
>of the screen for a moment, draw everything, and then turn it back on...?
Am I
>contradicting myself there because the LCD has to be On to write to the
>display? :\  Well, can someone tell me a Call or a Routine to copy the
Display
>to the Buffer, because then I could just make it look choppy the first time I
>write all those lines, and then cleanly just recopy the Buffer to the Display
>all the other times... Hmm, can somebody help me here, and kind of walk me
>through it? =P
>																--Jason K.
>
>
Ahmed El-Helw
ahmed@ticalc.org
http://www.ticalc.org
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