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             for (int i = 1; i <= 99; i++)
  32                 cmbComPort.Items.Add("COM" + i.ToString());
  33
  34             cmbComPort.SelectedIndex = System.Convert.ToInt32(AppRegKey.GetValue("Port", "1")) - 1;
  35             serSerialPort.PortName = cmbComPort.Text;
  36
  37             Hide();
  38         }
  39
  40         private void NotifyLight(int Red, int Green, int Blue)
  41         {
  42             byte[] buffer = new byte[3];
  43             buffer[0] = (byte)(0x80 | (Red & LIGHT_MAX));
  44             buffer[1] = (byte)(0x40 | (Green & LIGHT_MAX));
  45             buffer[2] = (byte)(0x20 | (Blue & LIGHT_MAX));
  46
  47             try
  48             {
  49                 serSerialPort.PortName = cmbComPort.Text;
  50                 serSerialPort.Open();
  51                 serSerialPort.Write(buffer, 0, buffer.Length);
  52                 serSerialPort.Close();
  53             }
  54             catch (Exception e)
  55             {
  56
  57             }
  58         }
  59
  60         private void tmrCPUTimer_Tick(object sender, EventArgs e)
  61         {
  62             float CPUUsage = pcCPUUsage.NextValue();
  63
  64             int Red = 0;
  65             int Green = 0;
  66             int Blue = 0;
  67
  68             if (CPUUsage < 25)
  69             {
  70                 Green = (int)((LIGHT_MAX / 25) * CPUUsage);
  71             }
  72             else if (CPUUsage < 50)
  73             {
  74                 Blue = (int)((LIGHT_MAX / 25) * (CPUUsage - 25));
  75                 Green = LIGHT_MAX - Blue;
  76             }
  77             else if (CPUUsage < 75)
  78             {
  79                 Red = (int)((LIGHT_MAX / 25) * (CPUUsage - 50));
  80                 Blue = LIGHT_MAX - Red;
  81             }
  82             else
  83             {
  84                 Red = LIGHT_MAX;
  85             }
  86
  87             NotifyLight(Red, Green, Blue);
  88             lblCPU.Text = ((int)CPUUsage).ToString() + "%";
  89         }
  90
  91         private void btnExit_Click(object sender, EventArgs e)
  92         {
  93             Application.Exit();
  94         }
  95
  96         private void btnMinimizeToTray_Click(object sender, EventArgs e)
  97         {
  98             this.Hide();
  99         }
 100
 101         private void TrayIconClick(object sender, MouseEventArgs e)
 102         {
 103             this.Show();
 104             this.WindowState = FormWindowState.Normal;
 105         }
 106
 107         private void cbPort_SelectedIndexChanged(object sender, EventArgs e)
 108         {
 109             AppRegKey.SetValue("Port", cmbComPort.SelectedIndex + 1);
 110             serSerialPort.PortName = cmbComPort.Text;
 111         }
 112     }
 113 }