Projects/TempDataLogger/TempLogHostApp/DataLoggerSettings.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.ComponentModel;
   4 using System.Data;
   5 using System.Drawing;
   6 using System.Linq;
   7 using System.Text;
   8 using System.Windows.Forms;
   9 using Hid;
  10
  11 namespace Project1HostApp
  12 {
  13     public partial class frmDataloggerSettings : Form
  14     {
  15         private const int DEVICE_VID = 0x03EB;
  16         private const int DEVICE_PID = 0x2063;
  17
  18         private struct Device_Report_t
  19         {
  20             public Byte Day;
  21             public Byte Month;
  22             public Byte Year;
  23
  24             public Byte Hour;
  25             public Byte Minute;
  26             public Byte Second;
  27
  28             public Byte LogInterval500MS;
  29
  30             public Byte[] ToReport()
  31             {
  32                 Byte[] Report = new Byte[7];
  33
  34                 Report[0] = this.Day;
  35                 Report[1] = this.Month;
  36                 Report[2] = this.Year;
  37                 Report[3] = this.Hour;
  38                 Report[4] = this.Minute;
  39                 Report[5] = this.Second;
  40                 Report[6] = this.LogInterval500MS;
  41
  42                 return Report;
  43             }
  44
  45             public void FromReport(Byte[] Report)
  46             {
  47                 this.Day = Report[0];
  48                 this.Month = Report[1];
  49                 this.Year = Report[2];
  50                 this.Hour = Report[3];
  51                 this.Minute = Report[4];
  52                 this.Second = Report[5];
  53                 this.LogInterval500MS = Report[6];
  54             }
  55         };
  56
  57         private IDevice GetDeviceConnection()
  58         {
  59             IDevice[] ConnectedDevices = DeviceFactory.Enumerate(DEVICE_VID, DEVICE_PID);
  60             IDevice ConnectionHandle = null;
  61
  62             if (ConnectedDevices.Count() > 0)
  63                 ConnectionHandle = ConnectedDevices[0];
  64             else
  65                 return null;
  66
  67             // Fix report handle under Windows
  68             if (ConnectionHandle is Hid.Win32.Win32DeviceSet)
  69             {
  70                 ((Hid.Win32.Win32DeviceSet)ConnectionHandle).AddDevice(0x00,
  71                     ((Hid.Win32.Win32DeviceSet)ConnectionHandle).UnallocatedDevices[0]);
  72             }
  73
  74             return ConnectionHandle;
  75         }
  76
  77         public frmDataloggerSettings()
  78         {
  79             InitializeComponent();
  80         }
  81
  82         private void btnSetValues_Click(object sender, EventArgs e)
  83         {
  84             IDevice ConnectionHandle = GetDeviceConnection();
  85
  86             if (ConnectionHandle == null)
  87             {
  88                 MessageBox.Show("Error: Cannot connect to Datalogger device.");
  89                 return;
  90             }
  91
  92             Device_Report_t DeviceReport = new Device_Report_t();
  93             DeviceReport.Day = (byte)dtpDate.Value.Day;
  94             DeviceReport.Month = (byte)dtpDate.Value.Month;
  95             DeviceReport.Year = (byte)((dtpDate.Value.Year < 2000) ? 0 : (dtpDate.Value.Year - 2000));
  96             DeviceReport.Hour = (byte)dtpTime.Value.Hour;
  97             DeviceReport.Minute = (byte)dtpTime.Value.Minute;
  98             DeviceReport.Second = (byte)dtpTime.Value.Second;
  99             DeviceReport.LogInterval500MS = (byte)(nudLogInterval.Value * 2);
 100
 101             try
 102             {
 103                 ConnectionHandle.Write(0x00, DeviceReport.ToReport());
 104                 MessageBox.Show("Device parameters updated successfully.");
 105             }
 106             catch (Exception ex)
 107             {
 108                 MessageBox.Show("Error: " + ex.Message);
 109             }
 110         }
 111
 112         private void btnGetValues_Click(object sender, EventArgs e)
 113         {
 114             IDevice ConnectionHandle = GetDeviceConnection();
 115
 116             if (ConnectionHandle == null)
 117             {
 118                 MessageBox.Show("Error: Cannot connect to Datalogger device.");
 119                 return;
 120             }
 121
 122             Device_Report_t DeviceReport = new Device_Report_t();
 123
 124             try
 125             {
 126                 Byte[] Report = new Byte[7];
 127
 128                 ConnectionHandle.Read(0x00, Report);
 129                 DeviceReport.FromReport(Report);
 130
 131                 try
 132                 {
 133                     dtpDate.Value = new DateTime(
 134                         (2000 + DeviceReport.Year),
 135                         DeviceReport.Month,
 136                         DeviceReport.Day);
 137
 138                     dtpTime.Value = new DateTime(
 139                         DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day,
 140                         DeviceReport.Hour,
 141                         DeviceReport.Minute,
 142                         DeviceReport.Second);
 143                 }
 144                 catch (Exception ex)
 145                 {
 146                     dtpDate.Value = DateTime.Now;
 147                     dtpTime.Value = DateTime.Now;
 148                 }
 149
 150                 try
 151                 {
 152                     nudLogInterval.Value = (DeviceReport.LogInterval500MS / 2);
 153                 }
 154                 catch (Exception ex)
 155                 {
 156                     nudLogInterval.Value = nudLogInterval.Minimum;
 157                 }
 158
 159                 MessageBox.Show("Device parameters retrieved successfully.");
 160             }
 161             catch (Exception ex)
 162             {
 163                 MessageBox.Show("Error: " + ex.Message);
 164             }
 165         }
 166
 167         private void frmDataloggerSettings_Load(object sender, EventArgs e)
 168         {
 169
 170         }
 171     }
 172 }