Then you can do build -> rebuild solution and it should build but not run because that DLL isn't on your path. Also under Linker -> Input, set foo.lib as an additional dependency. Then you have to go to Project -> fdllrun properties -> Linker -> general, and set the directory where that foo.lib that you made resides as an Additional Library Directory. Then you should be able to add it as an existing source file. Now open a couple of Windows explorers +E + +E + and navigate to where your original fdllrun.f90 file as you modified it with DECORATE is and copy it over to D:lahblahblahdllrundllrun. Ok, now start Visual Studio, start a new project, and under Intel(R) Visual Fortran, Console Application, select Empty Project, Name: fdllrun, check Create directory for solution, then OK. Can you disclose as much as one symbol exported by the target DLL as seen by dumpbin /exports? Just use dumpbin /exports to see what the symbols from your target DLL look like and see if what this test DLL exports look similar. Third, the ALIAS of 'add2i_' is wrong anyway. Secondly, you don't need DECORATE here unless the calling convention of the DLL is set to STDCALL. Note that I used the foo.f90 from Quote #3 the modifications in Quote #12 are wrong because, firstly, the reason for the DECORATE attribute is to avoid the conditional compilation with !DEC$ IF DEFINED(_WIN32), so you don't need them both. First, in some neutral directory, from the 32-bit ifort command prompt, I compiled foo.f90 to a DLL with

The errors I get when I try to compile are:Įrror 1 error LNK2019: unresolved external symbol _imp_add2i referenced in function _MAIN_ fdllrun.objĮrror 2 fatal error LNK1120: 1 unresolved externals Releasedllrun.exe I tried to right click on my project and do Add -> Existing Item, then browse to the DLL file located in C: emp, then Build All. !DEC$ ATTRIBUTES DLLIMPORT, ALIAS:'simpson' :: simpson

!DEC$ ATTRIBUTES DLLIMPORT, ALIAS:'add2r' :: add2r !DEC$ ATTRIBUTES DLLIMPORT, ALIAS:'add2i' :: add2i This is my Fortran code which is supposed to generate an EXE that is linked to the DLL file: program fdllrun I do not want examples with *.lib, since the actual DLL I want to use once I get past this example does not have a companion *.lib. Next, I need to know step-by-step how to import the add2i, add2r, and simpson functions from this DLL located in C: emp into my current Fortran project. Section contains the following exports for fdlltest.dllĥ60ED478 time date stamp Fri Oct 02 14:01:12 2015 The DLL file I am trying to import, fdlltest.dll, has the following functions defined when I do dumpbin /exports: C: emp>dumpbin /exports fdlltest.dllĬopyright (C) Microsoft Corporation. I am having problems importing a DLL into my current Fortran project.

How to edit dll files in visual studio