using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace _87k_dio_latch
{
    public partial class Form1 : Form
    {
        uint DIValue;
        uint DIHighLatchValue;
        uint DILowLatchValue;
        uint DOValue;
        uint DOHighLatchValue;
        uint DOLowLatchValue;

        public Form1()
        {
            InitializeComponent();
            //Set default value
            cmbDIChannel.SelectedIndex = 1;//DI total channel default is '8'
            cmbDOChannel.SelectedIndex = 1;//DO total channel default is '8'
            cmbSlot.SelectedIndex = 1; //Slot default is '1';
        }

        private void btnReadDIOValue_Click(object sender, EventArgs e)
        {
            IntPtr hPort;
            int intSlot = Convert.ToInt16(cmbSlot.Text);
            int intDIChannel = Convert.ToInt16(cmbDIChannel.Text);
            int intDOChannel = Convert.ToInt16(cmbDOChannel.Text);
            //Open default com port , default com port is com 1
            hPort = PACNET.UART.Open("");

            DIValue = 0;
            DOValue = 0;
            
            //Read DI and DO data
            bool iRet = PACNET.PAC_IO.ReadDIO(hPort, intSlot, intDIChannel, intDOChannel, ref DIValue, ref DOValue);

            if (!iRet)
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }

            txtDIValue.Text = DIValue.ToString("X");
            txtDOValue.Text = DOValue.ToString("X");

            DILowLatchValue = 0;
            DOLowLatchValue = 0;

            //Read DI and DO low latch data
            iRet = PACNET.PAC_IO.ReadDIOLatch(hPort, intSlot, intDIChannel, intDOChannel, 0, ref DILowLatchValue, ref DOLowLatchValue);

            if (!iRet)
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }

            txtDILowValue.Text = DILowLatchValue.ToString("X");
            txtDOLowValu.Text = DOLowLatchValue.ToString("X");

            DIHighLatchValue = 0;
            DOHighLatchValue = 0;

            //Read DI and DO high latch data
            iRet = PACNET.PAC_IO.ReadDIOLatch(hPort, intSlot, intDIChannel, intDOChannel, 1, ref DIHighLatchValue, ref DOHighLatchValue);

            if (!iRet)
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }

            txtDIHighValue.Text = DIHighLatchValue.ToString("X");
            txtDOHighValue.Text = DOHighLatchValue.ToString("X");

            PACNET.UART.Close(hPort);
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            int intSlot = Convert.ToInt16(cmbSlot.Text);
            int intChannel = Convert.ToInt16(cmbDOChannel.Text);

            //Open default com port , default com port is com 1
            IntPtr hPort = PACNET.UART.Open("");

            //Clear DI and DO latch
            bool iRet = PACNET.PAC_IO.ClearDIOLatch(hPort, intSlot);

            if (!iRet)
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }

            //Set DO data be '0' to clear
            txtDILowValue.Text = "0";
            txtDIHighValue.Text = "0";
            txtDOHighValue.Text = "0";
            txtDOLowValu.Text = "0";

            PACNET.UART.Close(hPort);
        }

        private void btnWriteDo_Click(object sender, EventArgs e)
        {
            int intSlot = Convert.ToInt16(cmbSlot.Text);
            int intChannel = Convert.ToInt16(cmbDOChannel.Text);
            bool iRet;

            IntPtr hPort = PACNET.UART.Open("");
            iRet=PACNET.PAC_IO.WriteDO(hPort, intSlot, intChannel, Convert.ToUInt32(txtDOWriteValue.Text,16));

            if (!iRet)
            {
                uint ec = PACNET.ErrHandling.GetLastError();
                MessageBox.Show(((PACNET.ErrCode)ec).ToString() + "\nError Code: 0x" + ec.ToString("X"));
            }
            
            PACNET.UART.Close(hPort);
        }
    }
}