Projects/LEDNotifier/CPUUsageApp/CPUMonitor.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 Microsoft.Win32;
  10
  11 namespace CPUMonitor
  12 {
  13     public partial class frmCPU : Form
  14     {
  15         private RegistryKey AppRegKey;
  16
  17         private const int LIGHT_MAX = 0x1F;
  18
  19         public frmCPU()
  20         {
  21             InitializeComponent();
  22
  23             nicoNotifyIcon.Icon = this.Icon;
  24             nicoNotifyIcon.MouseClick += new MouseEventHandler(TrayIconClick);
  25         }
  26
  27         private void Form1_Load(object sender, EventArgs e)
  28         {
  29             AppRegKey = Registry.CurrentUser.CreateSubKey("Software\\CPUMonitor");
  30
  31             String[] PortNames = System.IO.Ports.SerialPort.GetPortNames();
  32             Array.Sort<String>(PortNames, delegate(string strA, string strB) { return int.Parse(strA.Substring(3)).CompareTo(int.Parse(strB.Substring(3))); });
  33             cmbComPort.Items.Clear();
  34             cmbComPort.Items.AddRange(PortNames);
  35
  36             cmbComPort.SelectedIndex = System.Convert.ToInt32(AppRegKey.GetValue("Port", "1")) - 1;
  37             serSerialPort.PortName = cmbComPort.Text;
  38
  39             Hide();
  40         }
  41
  42         private void NotifyLight(int Red, int Green, int Blue)
  43         {
  44             byte[] buffer = new byte[3];
  45             buffer[0] = (byte)(0x80 | (Red & LIGHT_MAX));
  46             buffer[1] = (byte)(0x40 | (Green & LIGHT_MAX));
  47             buffer[2] = (byte)(0x20 | (Blue & LIGHT_MAX));
  48
  49             try
  50             {
  51                 serSerialPort.PortName = cmbComPort.Text;
  52                 serSerialPort.Open();
  53                 serSerialPort.Write(buffer, 0, buffer.Length);
  54                 serSerialPort.Close();
  55             }
  56             catch (Exception e)
  57             {
  58
  59             }
  60         }
  61
  62         private void tmrCPUTimer_Tick(object sender, EventArgs e)
  63         {
  64             float CPUUsage = pcCPUUsage.NextValue();
  65
  66             int Red = 0;
  67             int Green = 0;
  68             int Blue = 0;
  69
  70             if (CPUUsage < 25)
  71             {
  72                 Green = (int)((LIGHT_MAX / 25) * CPUUsage);
  73             }
  74             else if (CPUUsage < 50)
  75             {
  76                 Blue = (int)((LIGHT_MAX / 25) * (CPUUsage - 25));
  77                 Green = LIGHT_MAX - Blue;
  78             }
  79             else if (CPUUsage < 75)
  80             {
  81                 Red = (int)((LIGHT_MAX / 25) * (CPUUsage - 50));
  82                 Blue = LIGHT_MAX - Red;
  83             }
  84             else
  85             {
  86                 Red = LIGHT_MAX;
  87             }
  88
  89             NotifyLight(Red, Green, Blue);
  90             lblCPU.Text = ((int)CPUUsage).ToString() + "%";
  91         }
  92
  93         private void btnExit_Click(object sender, EventArgs e)
  94         {
  95             Application.Exit();
  96         }
  97
  98         private void btnMinimizeToTray_Click(object sender, EventArgs e)
  99         {
 100             this.Hide();
 101         }
 102
 103         private void TrayIconClick(object sender, MouseEventArgs e)
 104         {
 105             this.Show();
 106             this.WindowState = FormWindowState.Normal;
 107         }
 108
 109         private void cbPort_SelectedIndexChanged(object sender, EventArgs e)
 110         {
 111             AppRegKey.SetValue("Port", cmbComPort.SelectedIndex + 1);
 112             serSerialPort.PortName = cmbComPort.Text;
 113         }
 114     }
 115 }