I have a Fortran DLL project that I am building in IVF11.1. The DLL has entry points that i would like to call from VB.net (VS2008) and also from Excel VBA macros. To find the entry points, i included in the following two lines in each fionction/subroutine that i call from vb.net/excel:
!dec$ attributes dllexport :: MW_fnc
!dec$ attributes stdcall, REFERENCE, alias :'MW_F' :: MW_FNC
The name of the function, in this case, is real(8) Function MW_fnc.
This allows me to then DECLARE the function MW_F in VB.net and in Excel VBA.
The problem is this -- the source code is split up into a few different files. The MW_FNC routine is contained in FILEA.f. There is a second routine (SABS_F) that makes use of this function, but it is in FileB.f. WhenI compile/link the code, i get the error:
Error 11 error LNK2019: unresolved external symbol _MW_FNC referenced in function SABS_F. entropy.obj
I also end up with warnings that are something like this for other functions that do not have the second DEC statement (i.e., they are not aliased):
Warning 5 warning : locally defined symbol __imp__DENSITYSITOIP_FNC imported Release\h_air.obj
Warning 10 warning LNK4217: locally defined symbol _DENSITYSITOIP_FNC imported in function _GETDENSITYFORFLOWRATE_FNC h_air.obj
I am pretty sure this all has to do with the DLLEXPORT, STDCALL, and ALIAS attributes, but i am at a loggerhead. Can someone help me?
Kirby
