使用API实现的一个增加系统桌面,并且可以任意切换的小程序.

很抱歉地告诉大家,到目前为止,我还没有想到删除桌面的方法,因为现有的程序删除并不能真正删除掉.不过，有些东西大家还是可以相互借鉴的嘛。希望以下代码可以对你有些帮助，那我就很满意了。
以下是所有源码
你可以复制到IDE中，直接编译。哦，对了，为了省事，我没有把关于窗口的代码发上来。
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
using System.Threading;
using System.Diagnostics;
using System.Text;

namespace SwitchDesktop
{
 /// <summary>
 /// 创建桌面程序
 ///
 /// 由于程序还未完成.所以有许多功能尚未实现.
 /// 可以很好地描述使用系统API来实现的一些功能.
 ///
 /// 程序:房客
 /// QQ:83849123
 /// 日期:2006-3-1
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.ListBox listBox1;
  private System.Windows.Forms.NotifyIcon notifyIcon1;
  private System.Windows.Forms.ContextMenu SysMenu;
  private System.Windows.Forms.MenuItem menuItem1;
  private System.Windows.Forms.MenuItem menuItem2;
  private System.Windows.Forms.MenuItem menuItem3;
  private System.Windows.Forms.MainMenu MainMenu;
  private System.Windows.Forms.MenuItem menuItem4;
  private System.Windows.Forms.MenuItem menuItem5;
  private System.Windows.Forms.MenuItem menuItem7;
  private System.Windows.Forms.MenuItem menuItem8;
  private System.Windows.Forms.MenuItem menuItem9;
  private System.Windows.Forms.MenuItem menuItem10;
  private System.Windows.Forms.MenuItem menuItem11;
  private System.Windows.Forms.MenuItem menuItem12;
  private System.Windows.Forms.MenuItem menuItem13;
  private System.Windows.Forms.MenuItem menuItem14;
  private System.Windows.Forms.MenuItem menuItem15;
  private System.Windows.Forms.MenuItem menuItem16;
  private System.Windows.Forms.MenuItem menuItem17;
  private System.Windows.Forms.MenuItem menulist;
  private System.ComponentModel.IContainer components;

  public Form1()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();

   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  #region Windows 窗体设计器生成的代码
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.components = new System.ComponentModel.Container();
   System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
   this.listBox1 = new System.Windows.Forms.ListBox();
   this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
   this.SysMenu = new System.Windows.Forms.ContextMenu();
   this.menuItem1 = new System.Windows.Forms.MenuItem();
   this.menuItem2 = new System.Windows.Forms.MenuItem();
   this.menuItem3 = new System.Windows.Forms.MenuItem();
   this.MainMenu = new System.Windows.Forms.MainMenu();
   this.menuItem4 = new System.Windows.Forms.MenuItem();
   this.menuItem8 = new System.Windows.Forms.MenuItem();
   this.menuItem9 = new System.Windows.Forms.MenuItem();
   this.menuItem10 = new System.Windows.Forms.MenuItem();
   this.menuItem5 = new System.Windows.Forms.MenuItem();
   this.menuItem11 = new System.Windows.Forms.MenuItem();
   this.menuItem12 = new System.Windows.Forms.MenuItem();
   this.menuItem14 = new System.Windows.Forms.MenuItem();
   this.menuItem13 = new System.Windows.Forms.MenuItem();
   this.menulist = new System.Windows.Forms.MenuItem();
   this.menuItem7 = new System.Windows.Forms.MenuItem();
   this.menuItem15 = new System.Windows.Forms.MenuItem();
   this.menuItem16 = new System.Windows.Forms.MenuItem();
   this.menuItem17 = new System.Windows.Forms.MenuItem();
   this.SuspendLayout();
   //
   // listBox1
   //
   this.listBox1.ItemHeight = 12;
   this.listBox1.Location = new System.Drawing.Point(8, 8);
   this.listBox1.Name = "listBox1";
   this.listBox1.Size = new System.Drawing.Size(224, 100);
   this.listBox1.TabIndex = 2;
   this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_DoubleClick);
   //
   // notifyIcon1
   //
   this.notifyIcon1.ContextMenu = this.SysMenu;
   this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon1.Icon")));
   this.notifyIcon1.Text = "消息";
   this.notifyIcon1.Visible = true;
   this.notifyIcon1.DoubleClick += new System.EventHandler(this.menuItem1_Click);
   //
   // SysMenu
   //
   this.SysMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                     this.menuItem1,
                     this.menuItem2,
                     this.menuItem3});
   //
   // menuItem1
   //
   this.menuItem1.Index = 0;
   this.menuItem1.Text = "显示/隐藏(&H)";
   this.menuItem1.Click += new System.EventHandler(this.menuItem1_Click);
   //
   // menuItem2
   //
   this.menuItem2.Index = 1;
   this.menuItem2.Text = "-";
   //
   // menuItem3
   //
   this.menuItem3.Index = 2;
   this.menuItem3.Text = "退出(&X)";
   this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
   //
   // MainMenu
   //
   this.MainMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                      this.menuItem4,
                      this.menuItem5,
                      this.menulist,
                      this.menuItem7});
   //
   // menuItem4
   //
   this.menuItem4.Index = 0;
   this.menuItem4.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem8,
                       this.menuItem9,
                       this.menuItem10});
   this.menuItem4.Text = "系统(&S)";
   //
   // menuItem8
   //
   this.menuItem8.Index = 0;
   this.menuItem8.Text = "最小化(&I)";
   this.menuItem8.Click += new System.EventHandler(this.menuItem8_Click);
   //
   // menuItem9
   //
   this.menuItem9.Index = 1;
   this.menuItem9.Text = "-";
   //
   // menuItem10
   //
   this.menuItem10.Index = 2;
   this.menuItem10.Text = "退出(&X)";
   this.menuItem10.Click += new System.EventHandler(this.menuItem10_Click);
   //
   // menuItem5
   //
   this.menuItem5.Index = 1;
   this.menuItem5.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem11,
                       this.menuItem12,
                       this.menuItem14,
                       this.menuItem13});
   this.menuItem5.Text = "操作(&O)";
   //
   // menuItem11
   //
   this.menuItem11.Index = 0;
   this.menuItem11.Text = "新建(&N)";
   this.menuItem11.Click += new System.EventHandler(this.menuItem11_Click);
   //
   // menuItem12
   //
   this.menuItem12.Index = 1;
   this.menuItem12.Text = "切换(&W)";
   this.menuItem12.Click += new System.EventHandler(this.menuItem12_Click);
   //
   // menuItem14
   //
   this.menuItem14.Index = 2;
   this.menuItem14.Text = "-";
   //
   // menuItem13
   //
   this.menuItem13.Index = 3;
   this.menuItem13.Text = "关闭(&C)";
   this.menuItem13.Click += new System.EventHandler(this.menuItem13_Click);
   //
   // menulist
   //
   this.menulist.Index = 2;
   this.menulist.Text = "桌面(&D)";
   //
   // menuItem7
   //
   this.menuItem7.Index = 3;
   this.menuItem7.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem15,
                       this.menuItem16,
                       this.menuItem17});
   this.menuItem7.Text = "帮助(&H)";
   //
   // menuItem15
   //
   this.menuItem15.Index = 0;
   this.menuItem15.Text = "帮助(&H)";
   //
   // menuItem16
   //
   this.menuItem16.Index = 1;
   this.menuItem16.Text = "-";
   //
   // menuItem17
   //
   this.menuItem17.Index = 2;
   this.menuItem17.Text = "关于(&A)";
   this.menuItem17.Click += new System.EventHandler(this.menuItem17_Click);
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(240, 118);
   this.ContextMenu = this.SysMenu;
   this.Controls.Add(this.listBox1);
   this.Cursor = System.Windows.Forms.Cursors.Arrow;
   this.MaximizeBox = false;
   this.Menu = this.MainMenu;
   this.Name = "Form1";
   this.ShowInTaskbar = false;
   this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
   this.Text = "Desktop";
   this.TopMost = true;
   this.Load += new System.EventHandler(this.Form1_Load);
   this.ResumeLayout(false);

  }
  #endregion

  /// <summary>
  /// 应用程序的主入口点。
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new Form1());
  }

  #region 声明的外部函数

  [DllImport("user32", EntryPoint="CreateDesktop")]
  public static extern IntPtr CreateDesktop (
   string lpszDesktop,
   IntPtr lpszDevice,
   IntPtr pDevmode,
   int dwFlags,
   int dwDesiredAccess,
   IntPtr lpsa
   );

  [DllImport("user32", EntryPoint="CloseDesktop")]
  public static extern int CloseDesktop (
   IntPtr hDesktop
   );

  [DllImport("user32", EntryPoint="GetThreadDesktop")]
  public static extern IntPtr GetThreadDesktop (
   int dwThread
   );

  [DllImport("user32", EntryPoint="SwitchDesktop")]
  public static extern int SwitchDesktop (
   IntPtr hDesktop
   );
  
  [DllImport("user32", EntryPoint="EnumDesktops")]
  public static extern bool EnumDesktops (
   IntPtr hwinsta,
   EnumProc lpEnumFunc,
   IntPtr lParam
   );

  [DllImport("user32", EntryPoint="GetProcessWindowStation")]
  public static extern IntPtr GetProcessWindowStation ();

  [DllImport("user32", EntryPoint="OpenDesktop")]
  public static extern IntPtr OpenDesktop (
   string lpszDesktop,
   int dwFlags,
   Boolean fInherit,
   long dwDesiredAccess
   );

  [DllImport("user32", EntryPoint="RegisterHotKey")]
  public static extern int RegisterHotKey (
   IntPtr hwnd,
   int id,
   int fsModifiers,
   Keys key
   );

  [DllImport("user32", EntryPoint="UnregisterHotKey")]
  public static extern int UnregisterHotKey (
   IntPtr hwnd,
   int id
   );

  [DllImport("kernel32", EntryPoint="CreateProcess")]
  public static extern bool CreateProcess (
   string lpApplicationName,
   string lpCommandLine,
   IntPtr lpProcessAttributes,
   IntPtr lpThreadAttributes,
   bool bInheritHandles,
   int dwCreationFlags,
   IntPtr lpEnvironment,
   string lpCurrentDriectory,
   ref STARTUPINFO lpStartupInfo,
   ref PROCESS_INFORMATION lpProcessInformation
   );

  [DllImport("user32", EntryPoint="GetWindowText")]
  public static extern int GetWindowText (
   IntPtr hwnd,
   StringBuilder lpString,
   int cch
   );

  #endregion

  #region 声明结构
  
  [StructLayout(LayoutKind.Sequential)]
   public struct PROCESS_INFORMATION
  {
   public IntPtr hProcess;
   public IntPtr hThread;
   public int dwProcessId;
   public int dwThreadId;
  }

  [StructLayout(LayoutKind.Sequential)]
   public struct STARTUPINFO
  {
   public int cb;
   public string lpReserved;
   public string lpDesktop;
   public string lpTitle;
   public int dwX;
   public int dwY;
   public int dwXSize;
   public int dwYSize;
   public int dwXCountChars;
   public int dwYCountChars;
   public int dwFillAttribute;
   public int dwFlags;
   public short wShowWindow;
   public short cbReserved2;
   public IntPtr lpReserved2;
   public IntPtr hStdInput;
   public IntPtr hStdOutput;
   public IntPtr hStdError;
  }

  #endregion

  #region 声明的常量
  
  public const int GENERIC_ALL=0x10000000;
  public const int MOD_WIN=0x8;
  public const int WM_HOTKEY=0x312;
  public const int WM_SYSCOMMAND=0x112;
  public const int SC_CLOSE=0xF060;
  public const int SC_MINIMIZE=0xF020;

  public const int NORMAL_PRIORITY_CLASS=0x20;

  private const long DESKTOP_CREATEWINDOW = 0x0002L;
  private const long DESKTOP_ENUMERATE = 0x0040L;
  private const long DESKTOP_WRITEOBJECTS = 0x0080L;
  private const long DESKTOP_SWITCHDESKTOP = 0x0100L;
  private const long DESKTOP_CREATEMENU = 0x0004L;
  private const long DESKTOP_HOOKCONTROL = 0x0008L;
  private const long DESKTOP_READOBJECTS = 0x0001L;
  private const long DESKTOP_JOURNALRECORD = 0x0010L;
  private const long DESKTOP_JOURNALPLAYBACK = 0x0020L;

  private const long AccessRights = DESKTOP_JOURNALRECORD | DESKTOP_JOURNALPLAYBACK | DESKTOP_CREATEWINDOW | DESKTOP_ENUMERATE | DESKTOP_WRITEOBJECTS | DESKTOP_SWITCHDESKTOP | DESKTOP_CREATEMENU | DESKTOP_HOOKCONTROL | DESKTOP_READOBJECTS;

  #endregion

  #region 声明的变量

  private string strDesktopName = "Another";
  private IntPtr hwndNewDesktop;
  private IntPtr hwndOldDesktop;
  private ArrayList m_winList ;
  private bool IsHide = false ;

  private int hotkey = 0xffcf;

  #endregion

  #region 声明委托

  public delegate bool EnumProc( string Desktop,IntPtr LParam );

  #endregion

  #region 自定义方法

  private bool NewDesktop()
  {
   if( strDesktopName != string.Empty )
   {
    foreach ( object obj in m_winList )
    {
     if( obj.ToString() == strDesktopName )
     {
      throw new Exception ("指定的桌面名称已存在!");
     }
    }
    hwndNewDesktop = CreateDesktop( strDesktopName,IntPtr.Zero,IntPtr.Zero,0,GENERIC_ALL,IntPtr.Zero);
    StartProcess( "explorer.exe" );
    if( StartProcess( "ctfmon.exe" ) == null )
     StartProcess( "internat.exe" );
    UpdateList();
    return true;
   }
   else
   {
    throw new Exception( "桌面名称不能为空" );
   }
  }

  private bool GetDesktops()
  {
   bool flag = false;

   IntPtr hwndWStation = GetProcessWindowStation();
   if (hwndWStation != IntPtr.Zero)
   {
    flag = EnumDesktops( hwndWStation,new EnumProc(EnumDesktopProc),IntPtr.Zero );
   }
   return flag;
  }

  private bool EnumDesktopProc( string Desktop,IntPtr LParam )
  {
   if(Desktop.ToString() != "Winlogon" && Desktop.ToString() != "Disconnect")
    m_winList.Add( Desktop );
   return true;
  }

  private void UpdateList()
  {
   m_winList = new ArrayList();

   if( GetDesktops() )
   {
    //    ManageArray();
    this.listBox1.DataSource = m_winList;
    AppendMenu();
    RegHotKey();
   }
   else
   {
    MessageBox.Show( "GetDesktops Fail!" );
   }
  }

  private bool AppendMenu()
  {
   bool flag = false;

   GetCurrentDesktop();
   menulist.MenuItems.Clear();
   if( m_winList.Count > 0 )
   {
    MenuItem menu1 ;
    foreach( object obj in m_winList )
    {
     menu1 = new MenuItem( obj.ToString() );
     //menu1.Checked = true;
     menu1.Click += new EventHandler(menuItem_Click);
     menulist.MenuItems.Add( menu1 );
    }
   }

   return flag;
  }

  private void menuItem_Click(object sender, System.EventArgs e)
  {
   listBox1.SelectedItem = ((MenuItem)sender).Text;
   Switch();
  }

  private string GetCurrentDesktop()
  {
   hwndOldDesktop = GetThreadDesktop( AppDomain.GetCurrentThreadId() ); 
   StringBuilder sb = new StringBuilder( 100 );
   GetWindowText( hwndOldDesktop,sb,101 );
   string strTemp = sb.ToString();
   return strTemp;
  }

  private Process StartProcess( string strName )
  {
   STARTUPINFO si = new STARTUPINFO();
   si.cb = Marshal.SizeOf(si);
   si.lpDesktop = strDesktopName;

   //Process p ;
   PROCESS_INFORMATION pi = new PROCESS_INFORMATION();

   bool isOK = CreateProcess( null, strName,IntPtr.Zero,IntPtr.Zero,true,NORMAL_PRIORITY_CLASS,IntPtr.Zero,null,ref si,ref pi );
   if( isOK )
    return Process.GetProcessById( pi.dwProcessId );
   else
    return null;
  }

  private bool RegHotKey()
  {
   bool flag = false;
   if( RegisterHotKey( this.Handle,hotkey,MOD_WIN,Keys.D1) >0 )
    flag = true;
   return flag;
  }

  private void UnHotKey()
  {
   UnregisterHotKey( this.Handle,hotkey );
  }

//  private void ManageArray()
//  {
//   foreach ( object obj in m_winList )
//   {
//    if(obj.ToString() == "Winlogon" || obj.ToString() == "Disconnect")
//     m_winList.Remove( obj );
//   }
//  }

  private void Switch()
  {
   strDesktopName = listBox1.SelectedItem.ToString();
   hwndNewDesktop = OpenDesktop( strDesktopName,0,false,AccessRights );
   StartProcess( Process.GetCurrentProcess().ProcessName );
   SwitchDesktop( hwndNewDesktop );
   //Process.GetCurrentProcess().Kill();
   Application.Exit();
  }

  private void ShowWindow()
  {
   if( this.Opacity != 1.0d )
   {
    this.Opacity = 1.0d;
    IsHide = true;
   }
   else
   {
    if( IsHide )
    {
     Show();
     IsHide = false;
    }
    else
    {
     Hide();
     IsHide = true;
    }
   }
  }

  private int CloseDesk()
  {
   strDesktopName = listBox1.SelectedItem.ToString();
   hwndNewDesktop = OpenDesktop( strDesktopName,0,false,AccessRights );
   return CloseDesktop( hwndNewDesktop );
  }

  #endregion

  #region 控件方法

  private void Form1_Load(object sender, System.EventArgs e)
  {   
   UpdateList();
   this.MaximumSize = this.Size;
   this.MinimumSize = this.Size;
   this.Location = new Point( Screen.PrimaryScreen.WorkingArea.Width - this.Width ,Screen.PrimaryScreen.WorkingArea.Height - this.Height );

   this.Opacity = 0.0d;;
  }
  
  private void menuItem1_Click(object sender, System.EventArgs e)
  {
   ShowWindow();
  }

  private void listBox1_DoubleClick(object sender, System.EventArgs e)
  {
   if( listBox1.SelectedIndex > -1)
    Switch();
  }

  private void menuItem10_Click(object sender, System.EventArgs e)
  {
   Application.Exit();
  }

  private void menuItem8_Click(object sender, System.EventArgs e)
  {
   ShowWindow();
  }

  private void menuItem12_Click(object sender, System.EventArgs e)
  {
   if( listBox1.SelectedIndex > -1 )
    Switch();
  }

  private void menuItem17_Click(object sender, System.EventArgs e)
  {
   About about = new About();
   about.ShowDialog( this );
  }

  private void menuItem11_Click(object sender, System.EventArgs e)
  {
   DesktopName nameFrom = new DesktopName();
   if( nameFrom.ShowDialog( this ) == DialogResult.OK )
   {
    this.strDesktopName = nameFrom.strDesktopName;
    if (!NewDesktop())
     MessageBox.Show( "创建失败!" );
   }
   this.StartPosition =  FormStartPosition.Manual;
  }

  private void menuItem13_Click(object sender, System.EventArgs e)
  {
   if( CloseDesk()<1 )
    MessageBox.Show( "关闭失败!" );
   UpdateList();
  }

  private void menuItem3_Click(object sender, System.EventArgs e)
  {
   Application.Exit();
  }

  #endregion

  protected override void WndProc(ref Message m)
  {
   if( m.Msg == WM_HOTKEY && m.WParam.ToInt32() == hotkey )
   {
                ShowWindow();
   }
   else if( m.Msg == WM_SYSCOMMAND )
   {
    if(  m.WParam.ToInt32() == SC_CLOSE || m.WParam.ToInt32() == SC_MINIMIZE )
    {
     ShowWindow();
     return;
    }
   }
   base.WndProc (ref m);
  }

 }
}






using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace SwitchDesktop
{
 /// <summary>
 /// DesktopName 的摘要说明。
 /// </summary>
 public class DesktopName : System.Windows.Forms.Form
 {
  private System.Windows.Forms.Button button1;
  private System.Windows.Forms.TextBox textBox1;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;

  public DesktopName()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();

   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if(components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  public new DialogResult ShowDialog( System.Windows.Forms.IWin32Window owner )
  {
   base.ShowDialog( owner );
   if( IsOK )
    return DialogResult.OK;
   else
    return DialogResult.No;
  }

  #region Windows 窗体设计器生成的代码
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.button1 = new System.Windows.Forms.Button();
   this.textBox1 = new System.Windows.Forms.TextBox();
   this.SuspendLayout();
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(144, 8);
   this.button1.Name = "button1";
   this.button1.Size = new System.Drawing.Size(56, 23);
   this.button1.TabIndex = 0;
   this.button1.Text = "OK";
   this.button1.Click += new System.EventHandler(this.button1_Click);
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(8, 8);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(120, 21);
   this.textBox1.TabIndex = 1;
   this.textBox1.Text = "";
   //
   // DesktopName
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(210, 37);
   this.Controls.Add(this.textBox1);
   this.Controls.Add(this.button1);
   this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
   this.Name = "DesktopName";
   this.ShowInTaskbar = false;
   this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
   this.Text = "Please Name of New Desktop";
   this.ResumeLayout(false);

  }
  #endregion

  private bool IsOK = false;
  public string strDesktopName = string.Empty; 

  private void button1_Click(object sender, System.EventArgs e)
  {
   if( textBox1.Text.Trim() != string.Empty )
   {
    IsOK = true;
    strDesktopName = textBox1.Text.Trim();
    this.Close();
   }
   else
    IsOK = false;
  }
 }
}


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