Hi,

I am trying to use external DLL into Unity. I have try the following code. The DLL are .NET 3.5 framework.
The code is built correctly but when it tries to access to the first function the error is EntryPointNotFoundException:LoadLibraryA

using Patagames.Ocr;

public class OCR: MonoBehaviour {

void Start () {

OcrApi.PathToEngine = Application.dataPath+"tesseract.dll";
OcrApi api = OcrApi.Create ();
string[] languages = api.AvailableLanguages;
Debug.Log(languages);
}


COULD ANYONE GIVE ME SOME ADVICES PLEASE? THANK YOU!