Question

I’m trying to call a method, which is in a dll I’ve imported, from another class. Is there any way to do that? Thank you in advance!
To clarify myself: There is a class called “TTSManager”. In this class a dll was imported. There also is a class “TTSdotNET” and in THIS class I would like to call a method within a dll, but the method isn’t accessible. I hope somebody will help me.
P.S. I code in C#
“TTSManager”:
using UnityEngine;
using System.Collections;
using System;
using System.Runtime.InteropServices;

public class TTSManager : MonoBehaviour 
{
[DllImport ("SpeakerLib")]
private static extern void SpeakToSpeaker(string tts);  
[DllImport ("SpeakerLib")]
private static extern void SpeakToFile(string tts, string fileName, string fileFormat);                                     [DllImport ("SpeakerLib")]
private static extern void ReleaseSpeaker();

private static TTSManager instance = null;

private TTSManager(){}

public static TTSManager getInstance
{
    get
    {
        if(instance == null)
        {
            instance = new TTSManager();
        }
        return instance;
    }
}

// Use this for initialization
void Start () 
{

}

// Update is called once per frame
void Update () 
{

}
}

“TTSdotNET”:

public class TTSdotNet : MonoBehaviour 
{
 void Update () 
 {
  if (Input.GetKey(KeyCode.F10))
  {
   SpeakToSpeaker("hello world i feel uncomfortable.");
  }
 }
}

Answer 1

I tend to create a separate static class for the DLL imports. In addition to importing the functions I mostly also create wrapper methods for each DLL function call.

Example:

internal static class NativeCalls
{
    [DllImport ...]
    private static extern int SomeFunctionCall(...);

    public static int SomeFunction(...)
    {
        return SomeFunctionCall(...);
    }
}

That way, any class can access the DLL and your problem is solved.