I've tried everything to get a dll to work, with no success whatsoever. To my knowledge, all threads about this topic are at least 3 to 4 years old, and it's difficult ti find anything really replicable on current softwares.
The problem: write a dll, for MC64, with a simple function in it, and make it work. Probably to many of you this will look like a trivial task, but whatever I did, after reading virtually every thread and manual out there, I keep getting the the error "Can't find the dll "name.dll"".
Now, the dll is where it should and moving it somewhere else is useless. I came to the conclusion that there's some compatibility issue, bitness may be an example but I made sure to compile in 64.
I can't be the only one that is having problems in doing this, so I think it would be useful to have an updated thread on the matter.
Just as a starting point, here is my code:
PL reference:
Code: Select all
external: "mylib.dll", double, "add", double, double;
They will look something like this.
The body:
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#include "stdafx.h"
#include "mylib.h"
#include <comdef.h>
double __stdcall add(double _1, double _2){
return (_1 + _2);
}
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LIBRARY "mylib"
EXPORTS
add
The thing is compiled using Visual Studio 2017 for x64 platforms. Obviously there's something wrong with this, and the library results as not found.
Is there anyone capable of showing an example of working dll source code for MC64?
Few clarifications:
- - The dll content is kept as simple as possible to avoid a superposition of multiple mistakes
- The dll is where it should, in the installation folder
- Moving it somewhere else and explicitly reference the whole path doesn't make any difference
- Dlls that are officially provided by MC work properly, ELCollections is an example that I tried
- The dll is needed, so, in this case, "code the PL equivalent" is not a viable solution. Just assume a dll is needed.