Calling net dll from vb6
None of it applies anyway since the calling DLL calls clearly work on one machine.
If it is placed in the same Path as your compiled Executable, then the Systems Dll-Loader will reliably from find it only, when calling you run the compiled Exe-Binary.
Te/30/4111672, jun 7th, 2014, 02:07 PM #3, re: Calling a C Dll from VB6.
Your XP doesn't have the VC-runtimes which from come with VC 2005 and VC 2014 - whilst calling your Win8 calling machine doesn't have the VC 2008 related runtimes.
Something else is at play here and we don't have enough information to help.The first thing VB does (under the covers when it reaches such an external Function-Call-definition, is to look up in you Declare-Line, which Dll-file to load (with the goal to retrieve a "Library-Handle" for it).The.dll file, does it contain a lot of api calls?An early info about that, would also have given a good hint to us, what's going wrong.I from tried the long but no it had calling no effect.Code: / DLL2.cpp : Defines the entry point for the DLL application.
Using.NET DLL in VB6, you can also export functions as standard windows DLL function cheat entry points if you're willing to use a post compile tool.
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Is it correct that I need both files (dll tlb) and that I need to reference the tlb and register the dll?
Provide details and share your research!I am beginning to believe the problem resides in the way windows interfaces with the DLL2.dll and has little to do with the VC6 code.I also ran the VB program in a folder on the desktop (standalone without the VB6 IDE) using the same (2008) DLL2.dll.See if the solution here solves the problem.Thanks for a being a Professional and working through it with.In case of a successful retrieval of the Function-Address (per GetProcAddress VB will also cache this Function-Pointer - and only then proceeds with "jumping into the Dll-Code calling the externally defined function (with again portable different Errors, when the Parameter-Count - or -Types didn't match).Thanks Nightwalker83, I now have more to read.The Windows-Dll-Loader (the LoadLibrary-call) tries to find Dlls with a certain pattern, in a certain lookup-order: m/en-us/libr.It also worked on the Windows 7 machine (I copied the folder containing the VB6 program "Project1" and DLL2.dll from XP).
Originally Posted by mflum7, following the article on Code Project I have an interesting problem.
For windows 8 I do not know I never tested that.
And what's going wrong is, that calling net dll from vb6 you will have those problems only in the VB6-IDE, since the location where you placed that Dll2.dll is important.
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