Article View: comp.os.ms-windows.programmer.win32
Article #2100Re: Calling 32-bit DLLs from 16-bit-Applications
From: Troy Barlow
Date: Sat, 03 Feb 1996 17:14
Date: Sat, 03 Feb 1996 17:14
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Chris Marriott wrote: > Wrong. Universal thunks are ONLY available on Win32s. What's needed here > are "generic thunks"; these are available under Win95 and NT, but NOT > Win32s. > > There is no thunking mechanism which works under all 3 Win32 platforms :-< > > Chris > -- > -------------------------------------------------------------------------- I just finished a device driver VXD for some non-linear video hardware we made. Under Win32s it uses "Universal Thunks" to thunk from a 32bit dll to a 16bit dll, at this point the 16 bit dll calls directly into the VXD. It's almost the same for Win95, but it uses "Flat Thunks" and a thunk compiler to create the thunk obj files. After MANY calls to Microsofts DDK support, and tons of docs, there is NO WAY to thunk and call a VXD under WinNT. Thunking don't exist in WinNT! If you could prove me wrong I'd be happy! Soon I might have to port the VXD code to WinNT. My understanding is I will have to do some reading on HAL ;-)
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Path: arc1-ca.pugleaf.net!skypoint.com!usenet From: Troy Barlow <tbarlow@skypoint.com> Newsgroups: comp.os.ms-windows.programmer.win32,comp.lang.basic.visual.misc,comp.os.ms-windows.programmer.ole,comp.lang.c++ Subject: Re: Calling 32-bit DLLs from 16-bit-Applications Date: Sat, 03 Feb 1996 11:14:43 -0600 Organization: SkyPoint Communications, Inc. Message-ID: <31139803.61B1@skypoint.com> References: <4enu1u$20c_001@adv.magwien.gv.at> <3110E37C.352C@novabase.pt> <823286049snz@chrism.demon.co.uk> NNTP-Posting-Host: dial008.skypoint.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 2.0b6a (Win95; I)