通用類名[ComputerLoginUserInfo.cs] 代碼如下：
using System;
//---引用
using System.Runtime.InteropServices;
using System.Text;
/// <summary>
/// Windows 任務管理器登入使用者資訊
/// author:Stone_W
/// date:2011.1.14
/// </summary>
public class ComputerLoginUserInfo
{
#region 本機連接配接使用者資訊API封裝
public class TSControl
{
[DllImport("wtsapi32", CharSet = CharSet.Auto, SetLastError = true)]
private static extern bool WTSEnumerateSessions(int hServer, int Reserved,
int Version, ref long ppSessionInfo, ref int pCount);
[DllImport("wtsapi32.dll")]
public static extern void WTSFreeMemory(System.IntPtr pMemory);
public static extern bool WTSLogoffSession(int hServer, long SessionId, bool bWait);
[DllImport("Wtsapi32.dll")]
public static extern bool WTSQuerySessionInformation(
System.IntPtr hServer, int sessionId, WTSInfoClass wtsInfoClass,
out StringBuilder ppBuffer, out int pBytesReturned);
public enum WTSInfoClass
{
WTSInitialProgram,
WTSApplicationName,
WTSWorkingDirectory,
WTSOEMId,
WTSSessionId,
WTSUserName,
WTSWinStationName,
WTSDomainName,
WTSConnectState,
WTSClientBuildNumber,
WTSClientName,
WTSClientDirectory,
WTSClientProductId,
WTSClientHardwareId,
WTSClientAddress,
WTSClientDisplay,
WTSClientProtocolType
}
public enum WTS_CONNECTSTATE_CLASS
WTSActive,
WTSConnected,
WTSConnectQuery,
WTSShadow,
WTSDisconnected,
WTSIdle,
WTSListen,
WTSReset,
WTSDown,
WTSInit,
public struct WTS_SESSION_INFO
public int SessionID;
[MarshalAs(UnmanagedType.LPTStr)]
public string pWinStationName;
public WTS_CONNECTSTATE_CLASS state;
public static WTS_SESSION_INFO[] SessionEnumeration()
//Set handle of terminal server as the current terminal server
int hServer = 0;
bool RetVal;
long lpBuffer = 0;
int Count = 0;
long p;
WTS_SESSION_INFO Session_Info = new WTS_SESSION_INFO();
WTS_SESSION_INFO[] arrSessionInfo;
RetVal = WTSEnumerateSessions(hServer, 0, 1, ref lpBuffer, ref Count);
arrSessionInfo = new WTS_SESSION_INFO[0];
if (RetVal)
{
arrSessionInfo = new WTS_SESSION_INFO[Count];
int i;
p = lpBuffer;
for (i = 0; i < Count; i++)
{
arrSessionInfo[i] = (WTS_SESSION_INFO)Marshal.PtrToStructure(new IntPtr(p),
Session_Info.GetType());
p += Marshal.SizeOf(Session_Info.GetType());
}
WTSFreeMemory(new IntPtr(lpBuffer));
}
else
//Insert Error Reaction Here
return arrSessionInfo;
}
#endregion
public System.Collections.Generic.List<ComputerLoginUserInfoModel> ComputerLoginUserInfoList;
public ComputerLoginUserInfo()
#region 查詢代碼
TSControl.WTS_SESSION_INFO[] pSessionInfo = TSControl.SessionEnumeration();
ComputerLoginUserInfoModel cum = null;
ComputerLoginUserInfoList = new System.Collections.Generic.List<ComputerLoginUserInfoModel>();
for (int i = 0; i < pSessionInfo.Length; i++)
if ("RDP-Tcp" != pSessionInfo[i].pWinStationName)
try
int count = 0;
IntPtr buffer = IntPtr.Zero;
StringBuilder userName = new StringBuilder(); // 使用者名
StringBuilder clientUser = new StringBuilder(); // 用戶端名
StringBuilder stateType = new StringBuilder(); // 會話類型
bool userNameBool = TSControl.WTSQuerySessionInformation(IntPtr.Zero,
pSessionInfo[i].SessionID, TSControl.WTSInfoClass.WTSUserName,
out userName, out count);
bool clientUserBool = TSControl.WTSQuerySessionInformation(IntPtr.Zero,
pSessionInfo[i].SessionID, TSControl.WTSInfoClass.WTSClientName,
out clientUser, out count);
bool stateTypeBool = TSControl.WTSQuerySessionInformation(IntPtr.Zero,
pSessionInfo[i].SessionID, TSControl.WTSInfoClass.WTSWinStationName,
out stateType, out count);
if (userNameBool && clientUserBool && stateTypeBool)
{
cum = new ComputerLoginUserInfoModel();
cum.UserName = userName.ToString();
cum.ClientUserName = clientUser.ToString();
cum.SessionType = stateType.ToString();
}
ComputerLoginUserInfoList.Add(cum);
catch (Exception ex) { }
}
public class ComputerLoginUserInfoModel
#region 使用者資訊字段
private string userName;
private string clientUserName;
private string sessionType;
/// 會話類型
public string SessionType
get { return sessionType; }
set { sessionType = value; }
/// 用戶端名
public string ClientUserName
get { return clientUserName; }
set { clientUserName = value; }
/// 登入使用者名
public string UserName
get { return userName; }
set { userName = value; }
使用：ComputerLoginUserInfo uif = new ComputerLoginUserInfo();
foreach (ComputerLoginUserInfoModel item in uif.ComputerLoginUserInfoList)
{
Response.Write(item.UserName);
}
ps：尊重勞動人民成果，技術是共享的，但如果引用代碼請注明出處謝謝.
[引用位址：
http://www.cnblogs.com/stone_w/archive/2011/01/14/1935219.html]
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