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Form1.cs
Package: Csharp+USBsendSMS.rar　[view]
Upload User: lyzyl198
Upload Date: 2008-05-19
Package Size: 174k
Code Size: 4k
Category:

CSharp

Development Platform:

C#

Form1.cs：Code Content
  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Text;
  7. using System.Windows.Forms;
  8. using System.IO;
  10. namespace USB
  11. {
  12.     public partial class Form1 : Form
  13.     {
  14.         public const int WM_DEVICECHANGE = 0x219;
  15.         public const int DBT_DEVICEARRIVAL = 0x8000;
  16.         public const int DBT_CONFIGCHANGECANCELED = 0x0019;
  17.         public const int DBT_CONFIGCHANGED = 0x0018;
  18.         public const int DBT_CUSTOMEVENT = 0x8006;
  19.         public const int DBT_DEVICEQUERYREMOVE = 0x8001;
  20.         public const int DBT_DEVICEQUERYREMOVEFAILED = 0x8002;
  21.         public const int DBT_DEVICEREMOVECOMPLETE = 0x8004;
  22.         public const int DBT_DEVICEREMOVEPENDING = 0x8003;
  23.         public const int DBT_DEVICETYPESPECIFIC = 0x8005;
  24.         public const int DBT_DEVNODES_CHANGED = 0x0007;
  25.         public const int DBT_QUERYCHANGECONFIG = 0x0017;
  26.         public const int DBT_USERDEFINED = 0xFFFF;
  28.         public Form1()
  29.         {
  30.             InitializeComponent();
  31.         }
  33.         private void Form1_Load(object sender, EventArgs e)
  34.         {
  36.         }
  38.         protected override void WndProc(ref Message m)
  39.         {
  40.             try
  41.             {
  42.                 if (m.Msg == WM_DEVICECHANGE)
  43.                 {
  44.                     switch (m.WParam.ToInt32())
  45.                     {
  46.                         case WM_DEVICECHANGE://
  47.                             break;
  48.                         case DBT_DEVICEARRIVAL://U盘插入
  49.                             DriveInfo[] s = DriveInfo.GetDrives();
  50.                             foreach (DriveInfo drive in s)
  51.                             {
  52.                                 if (drive.DriveType == DriveType.Removable)
  53.                                 {
  54.                                     richTextBox1.AppendText("U盘已插入，盘符为:" + drive.Name.ToString() + "rn");
  55.                                     break;
  56.                                 }
  57.                             }
  58.                             break;
  59.                         case DBT_CONFIGCHANGECANCELED:
  60.                             MessageBox.Show("2");
  61.                             break;
  62.                         case DBT_CONFIGCHANGED:
  63.                             MessageBox.Show("3");
  64.                             break;
  65.                         case DBT_CUSTOMEVENT:
  66.                             MessageBox.Show("4");
  67.                             break;
  68.                         case DBT_DEVICEQUERYREMOVE:
  69.                             MessageBox.Show("5");
  70.                             break;
  71.                         case DBT_DEVICEQUERYREMOVEFAILED:
  72.                             MessageBox.Show("6");
  73.                             break;
  74.                         case DBT_DEVICEREMOVECOMPLETE: //U盘卸载
  75.                             richTextBox1.AppendText("U盘已卸载，盘符为:");
  76.                             break;
  77.                         case DBT_DEVICEREMOVEPENDING:
  78.                             MessageBox.Show("7");
  79.                             break;
  80.                         case DBT_DEVICETYPESPECIFIC:
  81.                             MessageBox.Show("8");
  82.                             break;
  83.                         case DBT_DEVNODES_CHANGED://可用，设备变化时
  84.                             MessageBox.Show("9");
  85.                             break;
  86.                         case DBT_QUERYCHANGECONFIG:
  87.                             MessageBox.Show("10");
  88.                             break;
  89.                         case DBT_USERDEFINED:
  90.                             MessageBox.Show("11");
  91.                             break;
  92.                         default:
  93.                             break;
  94.                     }
  95.                 }
  96.             }
  97.             catch (Exception ex)
  98.             {
  99.                 MessageBox.Show(ex.Message);
  100.             }
  101.             base.WndProc(ref m);
  102.         }
  104.         private void button1_Click(object sender, EventArgs e)
  105.         {
  106.            
  107.         }
  109.     }
  110. }