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vrf DLL's and header files

Question asked by VRFuser on Jun 3, 2004
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Hi All,

I'm having my first attempt at getting a DLL to work with VEE.

I've got the DLL and a .h file.  I tried to load it straight away with no
editing of the .h file and I got an error (surprise, surprise!).

A fairly representative line from the .h follows:
BOOL C843_FUNC_DECL C843_STE(const int iId, char const  cAxis, double dOffset);

There is a section at the top which looks like:
#undef FUNC_DECL
#ifdef C843_DLL_EXPORTS
#define C843_FUNC_DECL __declspec(dllexport) WINAPI
#else
#define C843_FUNC_DECL __declspec(dllimport) WINAPI
#endif

But VEE doesn't seem to like looking at this part, therefore I did a global
search and replace on "C843_FUNC_DECL" and replaced it with "__declspec(dllimport)".

Next, I know Vee doesn't handle BOOL data-types, but I'm not sure what to
replace it with.  There are also BYTE and WORD data types and again I don't know
what to change them for.

Any assistance is appreciated.

--
Graeme Hilton
Product Engineer

Schlumberger Sensa

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