To: djgpp AT delorie DOT com
Subject: Re: Retrieving VESA Modes in DJGPP -- HELP!
Message-ID: <19970110.151040.8799.0.chambersb@juno.com>
References: <32d55634 DOT 1506449 AT news DOT praxis DOT net>
From: chambersb AT juno DOT com (Benjamin D Chambers)
Date: Fri, 10 Jan 1997 18:11:07 EST


On Thu, 09 Jan 1997 20:40:57 GMT genocide AT praxis DOT net (GENOCiDE) writes:
>Ok, in my struct, there is a pounter called VideoModePtr;
>
>struct VbeInfoBlock {
>   ....
>   unsigned *VideoModePtr;
>   ....
>};
>
>I should be able to retrieve all the video modes by using:
>
>VbeInfoBlock vbeinfo;
>unsigned *p;
>for (p=vbeinfo.VideoModePtr; *p != (unsigned) -1; p++) {
>   printf("Mode: 0x%x\n", *p);
>}
>
>this works under regular ANSI C, why doesn't work here? is it because
>of protected mode?  Please help me!
The address returned is a RM address.  You need to convert it to a PM
address (I believe with _dos_ds, the FAQ explains how to do this.)

...Chambers

>
>Thanks.....
>-GENOCiDE
>
>genocide AT praxis DOT net
>