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From: goodearl@world.std.com (Robert Goodearl)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Memory models
Message-ID: <1990Nov27.221632.1106@world.std.com>
Date: 27 Nov 90 22:16:32 GMT
References: <2365.27537b67@waikato.ac.nz>
Organization: The World @ Software Tool & Die
Lines: 26

In article <2365.27537b67@waikato.ac.nz> iam@waikato.ac.nz (Ian McDonald) writes:
>I am having fun at the moment with memory models.
>
>At the moment I am using code like :
>  read(hFile,lpMsgBuffer,size);
>
>and compiling in large model.  I would prefer to have it compiled under small
>or medium model as that gives moveable data segments.  If I do though it can't
>seem to reference lpMsgBuffer which is a far pointer to a buffer

The solution for this particular problem is to use the windows function _lread
which takes an LPSTR for the buffer parameter.

Read chapter 14 of the Guide to Programming.  pp 14-8 lists a number of
functions that take LPSTR parameter.  Section 14.5.4 talks about file io
using _lopen, _lcreate, _lread and _lwrite.

You should be aware that you don't use the standard C libraries (or .h files)
when compiling for windows 3.0 with C 6.0.  All the .h files and .lib files
needed are provided with the SDK.

Also, be sure to define _WINDOWS at the top of your source file or on the
command line for the compiler when compiling for a windows executable.
When compiling for a DLL, define BOTH _WINDOWS and _WINDLL.
-- 
Bob Goodearl -- goodearl@world.std.com