From:	Endlisnis <s257m AT unb DOT ca>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: -= Hi RES GraphicS =- , This is one way
Date:	Mon, 07 Sep 1998 19:19:06 -0300
Organization:	NBTel Internet
Lines:	22
Message-ID:	<35F45BDA.90125CB1@unb.ca>
References:	<35DA143C DOT CC91D2A9 AT hotmail DOT com> <35DA884C DOT 3DAF6A05 AT geocities DOT com> <35F32D5F DOT 1742 AT club-internet DOT fr>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Ludvig Larsson wrote:
> Hi.
> The mode for 640x480x16bit is in VESA 1.2: 0x111 But when I read Ralph
> Browns interruptlist there was marked that Diamond Stealth used 0x211.
> A friend of mine didn't get my code working on his Matrox VESA 2.0 card
> and well the workaround was to only to add 0x4000 to the mode(actually
> this sets the lineframe buffer, but it works anyway, If anybody knows
> Why...).
	This is because you do not ask the graphics card which mode-numbers it uses. 
There is a function (I believe #0) that retrieves a list of modes that are
supported.  You can then use another function (i think #1) to check the
resolution & color depth of each mode.  You can use this to make your program
work on ANY card seeing as your fix will not work on every card.


-- 
     (\/) Endlisnis (\/)
          s257m AT unb DOT ca
          Endlisnis AT GeoCities DOT com
          Endlis AT nbnet DOT nb DOT ca

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