Date: Thu, 4 Apr 1996 05:41:01 -0500 (EST)
From: Keith Alan Kile <kak7c AT sparc20-1 DOT unixlab DOT virginia DOT edu>
To: djgpp AT delorie DOT com
Subject: Graphics Mode Switching
In-Reply-To: <4jsg5a$2o3@mack.rt66.com>
Message-ID: <Pine.SUN.3.90.960404053259.16526A-100000@sparc20-1.unixlab.Virginia.EDU>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


	What is the recommended way to change video modes using djgpp 
v2.x?  I have tried using the BIOS video interupt 0x10 through the 
library function _go32_dpmi_simulate_int (...) and the compiled program 
would hang or cause a general protection exception in a DOS-box under 
Win95.  Is this the only method currently available under djgpp to switch 
video modes, or can I opt to using direct port access?  Exactly how is 
direct port access handle under the djgpp run-time environment anyhow?

Thanks!

Keith A. Kile
Department of Computer Science
University of Virginia
kak7c AT virginia DOT edu