VAS Monitoring Tool

/// VAS Monitoring Tool
/// Author: Luke Gorman
/// Copyright: Free for public use

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;

namespace FsuipcSdk
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        // FSUIPC Variables Declared
        Fsuipc fsuipc = new Fsuipc();   // Our main fsuipc object!
        bool result = false;            // Return boolean for FSUIPC method calls
        bool stop = false;              // Flag to stop airspeed loop
        int dwFSReq = 0;                // Any version of FS is OK
        int dwResult = -1;              // Variable to hold returned results
        int dwOffset = 0x02BC;          // 02BC = indicated airspeed
        int dwSize = 4;                 // 4 bytes for indicated airspeed
        int token = -1;
        double vas;
        int vasMB;

        // Events that occur when the program is loaded (grab data timer, init FSUIPC conn. and window)
        public MainWindow()
        {
            InitializeComponent();
            result = fsuipc.FSUIPC_Open(dwFSReq, ref dwResult);

            DispatcherTimer timer = new DispatcherTimer();
            timer.Interval = TimeSpan.FromMilliseconds(2000);
            timer.Tick += timer_Tick;
            timer.Start();
        }

        // Quit button exits the application
        private void exitBtn_Click(object sender, RoutedEventArgs e)
        {
            Application.Current.Shutdown();
        }

        bool inDrag = false;
        Point anchorPoint;

        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
        {
            anchorPoint = PointToScreen(e.GetPosition(this));
            inDrag = true;
            CaptureMouse();
            e.Handled = true;
        }

        protected override void OnMouseMove(MouseEventArgs e)
        {
            if (inDrag)
            {
                Point currentPoint = PointToScreen(e.GetPosition(this));
                this.Left = this.Left + currentPoint.X - anchorPoint.X;
                this.Top = this.Top + currentPoint.Y - anchorPoint.Y;
                anchorPoint = currentPoint;
            }
        }

        protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
        {
            if (inDrag)
            {
                ReleaseMouseCapture();
                inDrag = false;
                e.Handled = true;
            }
        }

        private void timer_Tick(object sender, object e)
        {
            bool played = false;

            result = fsuipc.FSUIPC_Read(0x024C, 32, ref token, ref dwResult); ;
            result = fsuipc.FSUIPC_Process(ref dwResult);
            result = fsuipc.FSUIPC_Get(ref token, ref dwResult);
            vas = dwResult;

            vasMB = (int)vas / 1024;
            String vas2 = String.Format("{0:00,0}", vas);

            if (result)
            {
                // toolStripStatusLabel1.ForeColor = Color.DarkOliveGreen;
                // toolStripStatusLabel1.Text = "FSUIPC Connection Established";

                int max = 4086;

                progressBar.Value = vasMB;
                txtVAS.Content = "VAS: " + vas2 + " KB " + "(" + vasMB + " MB) ";
                percentage.Content = (((int)vas) / (int)max * 100) / 1000 + ("%");

                // High VAS Usage Alert
                if (vasMB > 3600)
                {
                    txtWarn.Content = "WARNING: High VAS Usage";
                }
            }
        }

        private void helpBtn_Click(object sender, RoutedEventArgs e)
        {

        }

    }
}