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- Newsgroups: comp.os.ms-windows.programmer.win32
- From: chris@chrism.demon.co.uk (Chris Marriott)
- Path: sparky!uunet!pipex!demon!chrism.demon.co.uk!chris
- Subject: Re: Win32s on Beta SDK CDROM?
- Distribution: world
- References: <1i4vb0INNj3c@neuro.usc.edu>
- Organization: None
- Reply-To: chris@chrism.demon.co.uk
- X-Mailer: Simple NEWS 1.90 (ka9q DIS 1.19)
- Lines: 36
- Date: Sat, 2 Jan 1993 23:02:33 +0000
- Message-ID: <726015753snz@chrism.demon.co.uk>
- Sender: usenet@demon.co.uk
-
- In article <1i4vb0INNj3c@neuro.usc.edu> merlin@neuro.usc.edu writes:
-
- >I read somewhere that the beta sdk cdrom contains a product called
- >win32s which allows 32 bit windows program development running over
- >dos and not over the nt kernel. Is this correct?
- >
- >Does win32s allow the development of true 32 bit code (large scale
- >image processing applications requiring flat memory model with the
- >ability to manipulate and do i/o with arrays larger than 64 KB)?
- >
- >Will there be an actual win32s product released for use in porting
- >and public release of 32 bit applications for the dos environment?
- >
-
- Yes - Win32s is a set of DLL's for Enhanced mode Windows 3.1. As its
- name suggests, it consists of a subset of the complete NT Win32 API.
- Basically, you develop your application on an NT machine, then Win32s
- allows that application to run under Windows 3.1. You get the 32-bit
- flat memory model. You *don't* get things like pre-emptive multitasking,
- separate address space, etc. All the Win32 API functions are there,
- but the things which aren't implemented in Win32s are simply "stub"
- functions - eg, "CreateThread" always returns a "failure" result.
-
- Win32s, even in the beta, seems to work well. I've ported a fairly
- large application to NT and it runs beautifully under Windows 3.1 as
- well, using the Win32s DLLs.
-
- Chris
- --
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- | Chris Marriott | chris@chrism.demon.co.uk |
- | Warrington, UK | BIX: cmarriott |
- | (Still awaiting inspiration | CIX: cmarriott |
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