User C# in Node.JS and DLLimport

[tdupuy17]

Hello,

I try to import DLL and execute C# code in node.js but my C# code works very well in Visual Studio, but not in node.js... This the code : (The error is on commented line "ERROR")

var edge = require('edge');

var helloWorld = edge.func(function () {/*

  using System;
  using System.Collections.Generic;
  using System.Runtime.InteropServices;
  using System.Threading.Tasks;
  using System.Net;

  class Startup
      {
      [DllImport("BLUEBOXLib.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
      static extern int BLUEBOX_Init(out int Handle);

      [DllImport("BLUEBOXLib.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
      static extern int BLUEBOX_SetAddress(ref int Handle, byte Address);

      [DllImport("BLUEBOXLib.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
      static extern int BLUEBOX_Close(ref int Handle);

      [DllImport("BLUEBOXLib.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
      static extern int BLUEBOX_End(ref int Handle);

      [DllImport("BLUEBOXLib.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
      static extern int BLUEBOX_SetChannel(ref int Handle, String Channel, String Settings);

      public async Task<object> Invoke(dynamic input)
      {
        return await Task<object>.Run(() => {
            byte Address = Convert.ToByte(255);
            IPAddress Ip = IPAddress.Parse("192.168.4.200");
            UInt16 Port = Convert.ToUInt16(3000);
            int Handle;
            int Err = 0;

            Err = Startup.BLUEBOX_Init(out Handle);
            Console.WriteLine("Init : "+ Err);

            // check library initialization
            if (Err != 0)
            {
                Console.WriteLine("BLUEBOXLib.dll: Library load error!");

                Startup.BLUEBOX_Close(ref Handle);
                Startup.BLUEBOX_End(ref Handle);

                return "false";
            } else {
                Err = Startup.BLUEBOX_SetAddress(ref Handle, Address);
                Console.WriteLine(Err);
                if (Err == 0)
                {
                    // create the settings string to pass to library
                    System.String strSettings = "192.168.4.200:3000,60000";

                    Err = Startup.BLUEBOX_SetChannel(ref Handle, "TCP", strSettings);
                    //ERROR The function return -2 in Err, that signifies "Handle Error"
                    //She must return 0, like while I run the code in Visual Studio
                }

                if (Err != 0)
                {

                    Startup.BLUEBOX_Close(ref Handle);
                    Startup.BLUEBOX_End(ref Handle);

                    return "false2";

                } else {

                // SOME CODE
                }
            }
return "true";
        });
      }
  }



*/});

helloWorld({test:1},function(error,result){
  console.log("ERROR : "+error);
console.log("RESULT : "+result);

});

Do you have an idea that why it's not works ?

[tjanczuk]

I assume the architecture (x86/x64) of the native DLLs you are pulling in within your code matches the architecture of node.exe you are using?

I would start by running Process Monitor on your app to see if you spot any anomalies in DLL loading or in native calls being made.

[tdupuy17]

Hello, I have two DLLs, one for x64, one for x86. I am not sure about that you request... we'll see this with the Process Monitor : (I don't know if is this that you want...)

[tdupuy17]

An idea please ?

[creativefull]

+1

[cjcruz]

hey @Icemaaan how did you solve this???

[vbiste]

hir sir please i need you samples for c# bluebox are change a lot of here library that i need to use library in my project that i don't found an samples in his official site can you help me with you c# sample thanks sir