using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.InteropServices;
 
namespace scales_dll_csharp
{
    class Program
    {
        // Load parameters from INI-file
        [DllImport("UniproScalesComServer.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern int vr1();
 
        // get weight from scales
        [DllImport("UniproScalesComServer.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern int gw1(int p_scales, 
                                    ref double p_weight, 
                                    ref double p_price, 
                                    ref double p_cost, 
                                    ref int p_stab );
        // send price
        [DllImport("UniproScalesComServer.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern int pp1(int p_scales, int p_price);
 
        // press "T"
        [DllImport("UniproScalesComServer.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern int pt1(int p_scales);
 
        static void Main(string[] args)
        {
            double  lv_weight = 0;
            double  lv_price = 0;
            double  lv_cost = 0;
            int     lv_stab = 0;
            int     lv_res = 0;
 
            // Load parameters from INI-file
            vr1();
 
            // send price
            lv_res = pp1(1, 12345);
 
            // get weight from scales number 1
            lv_res = gw1( 1, ref lv_weight, ref lv_price, ref lv_cost, ref lv_stab);
 
            if (lv_res == 0)
            {
                Console.WriteLine("res={0:D} weight={1:F}; price={2:F}; cost={3:F}; stab={4:D}",
                    lv_res,
                    lv_weight,
                    lv_price,
                    lv_cost,
                    lv_stab);
            }
            else
            {
                Console.WriteLine("Error={0:D}", lv_res);
            }
 
            // press T
            lv_res = pt1(1);
 
            Console.ReadLine();
        }
    }
}