CODEWITHSUNDEEP
c#unity-game-enginedllimportdllnotfoundexception
Xavier
Xavier

Reputation: 13

DllNotFound in Unity

I am trying to use my C++ dll on Unity, so I copied it in Assets/Plugins and at the root of the project but I have DllFoundException when I use the Play button or run the .exe file generated by the build. It doesn't even work when I use the absolute path of the dll file in the DllImport.

However, it works fine when I Build&Run the project.

Unity Code

using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using Dummiesman;

public class morph_face : MonoBehaviour
{
    bool morphed;


    [DllImport(@"facemorph", CallingConvention=CallingConvention.Cdecl)]
    static extern void morphModelsPoints(string src_model, string src_csv,
            string dst_csv, string output_path);


    public GameObject model;

    // Start is called before the first frame update
    void Start()
    {
        morphed = false;
    }

    // Update is called once per frame
    void Update()
    {
        if (!morphed && Input.GetKeyDown("space")) {
            Debug.Log("SpaceBar pressed the model will be modified.");
            morphModelsPoints("Data/src.obj", "Data/src.csv", "Data/dst.csv",
                "Data/res.obj");

            //disable old mesh
            model.SetActive(false);

            OBJLoader obj = new OBJLoader();
            model = obj.Load("Data/res.obj");

            //displays new mesh
            model.SetActive(true);

            morphed = true;
        }
    }
}

The Dll was built with this configuration: Release/Win32.

Here's the dll import settings : enter image description here

Upvotes: 1

Views: 2094

Answers (1)

Hasan Emrah Süngü
Hasan Emrah Süngü

Reputation: 3693

※Please correct me if I am wrong

If I am not mistaken, you can not use 32 dlls in Editor because UNITY is 64bit. If you can just rebuild your dll to 64bit. If you build a standalone then you must set your architecture to x86 instead of x86_64 in Build Settings.

Upvotes: 1

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