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universal thunk

universal thunk in Technology
programming, operating system
A software mechanism allowing a Windows 3.1 application to call a 32-bit dynamically linked library (DLL) under Win32s.
The Windows 3.1 application which wants to call an entry in a 32-bit DLL instead calls a corresponding entry in a 16-bit DLL. The programmer must also include code to detect whether the 32-bit DLL is loaded. A 32-bit EXE loads the 32-bit DLL.
See also Generic Thunk, Flat Thunk.
["Calling a Win32 DLL from a Windows 3.1 Application", Win32 SDK Knowledge Base, Article ID Q97785].
[Better explanation?]
(1997-10-11)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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