Re: porting a DLL to TS2K

[Mike Gossland <mga@xxxxxxxx>]

Make sure you have the function's name listed as an Export within the .def file, otherwise the name will get mangled (in the C++ overloading sense of the word.) I didn't make sure the names were in uppercase, and it worked fine for me.

Also, since you are trying to export the name from the DLL to TS, 

use this declaration:

__declspec( dllexport ) instead of DLLImport

or, use the DLLExport macro in your .h file, instead of the DLLImport. This is documented within the sample code if you let VC++ build you a sample "Win-32 Dynamic Link Library" and then choose "A DLL that exports some symbols".

HTH

Mike G.


>I have a DLL that I use with TS 4.0.  I would like to use its 32-bit 
>counterpart with TS 2K.  When I try to access the functions, I get a 
>message from TS2K that the function cannot be found.  The EL Ref Manual 
>says that, "It is very important to remember that 32-bit DLLs use 
>case-sensitive exported functions declared using _cdecl, __stdcall, or 
>fastcall.  For DLLs to be compatible with Easy Language, exported functions 
>should be created using all uppercase letters and be declared as _stdcall."
>
>Here's the .h file I have for my DLL.  Anyone have any suggestions on how 
>to modify it for TS2K?
>
>Thanks!
>Chris
>
>#ifndef _MYDLL_H
>#define _MYDLL_H
>
>#ifndef _MYEXP_INCLUDED
>#include "myexp.h"
>#endif
>
>#ifdef USE_DLL16 /* 16bit DLL */
>#define DllImport extern
>#else
># ifdef __cplusplus
>#define DllImport extern "C" __declspec( dllimport )
># else
>#define DllImport  __declspec( dllimport )
># endif
>#endif
>
>DllImport void FAR PASCAL set_path(char *path);