using System; using System.Management; using System.Runtime; using System.Runtime.InteropServices; namespace TSConsoleApplication 
{ 
/// <summary> 
/// TSControl 的摘要说明。 
/// </summary> public class TSControl { /// <summary> /// Terminal Services API Functions,The WTSEnumerateSessions function retrieves a list of sessions on a specified terminal server, /// </summary> /// <param name="hServer">[in] Handle to a terminal server. Specify a handle opened by the WTSOpenServer function, or specify WTS_CURRENT_SERVER_HANDLE to indicate the terminal server on which your application is running</param> /// <param name="Reserved">Reserved; must be zero</param> /// <param name="Version">[in] Specifies the version of the enumeration request. Must be 1. </param> /// <param name="ppSessionInfo">[out] Pointer to a variable that receives a pointer to an array of WTS_SESSION_INFO structures. Each structure in the array contains information about a session on the specified terminal server. To free the returned buffer, call the WTSFreeMemory function. /// To be able to enumerate a session, you need to have the Query Information permission.</param> /// <param name="pCount">[out] Pointer to the variable that receives the number of WTS_SESSION_INFO structures returned in the ppSessionInfo buffer. </param> /// <returns>If the function succeeds, the return value is a nonzero value. If the function fails, the return value is zero</returns> [DllImport("wtsapi32", CharSet=CharSet.Auto, SetLastError=true)] private static extern bool WTSEnumerateSessions(int hServer, int Reserved,int Version, ref long ppSessionInfo,ref int pCount); /// <summary> /// Terminal Services API Functions,The WTSFreeMemory function frees memory allocated by a Terminal Services function. /// </summary> /// <param name="pMemory">[in] Pointer to the memory to free</param> [DllImport("wtsapi32.dll")] private static extern void WTSFreeMemory(System.IntPtr pMemory); /// <summary> /// Terminal Services API Functions,The WTSLogoffSession function logs off a specified Terminal Services session. /// </summary> /// <param name="hServer">[in] Handle to a terminal server. Specify a handle opened by the WTSOpenServer function, or specify WTS_CURRENT_SERVER_HANDLE to indicate the terminal server on which your application is running. </param> /// <param name="SessionId">[in] A Terminal Services session identifier. To indicate the current session, specify WTS_CURRENT_SESSION. You can use the WTSEnumerateSessions function to retrieve the identifiers of all sessions on a specified terminal server. /// To be able to log off another user's session, you need to have the Reset permission </param> /// <param name="bWait">[in] Indicates whether the operation is synchronous. /// If bWait is TRUE, the function returns when the session is logged off. /// If bWait is FALSE, the function returns immediately.</param> /// <returns>If the function succeeds, the return value is a nonzero value. /// If the function fails, the return value is zero.</returns> [DllImport("wtsapi32.dll")] public static extern bool WTSLogoffSession(int hServer, long SessionId, bool bWait); /// <summary> /// The WTS_CONNECTSTATE_CLASS enumeration type contains INT values that indicate the connection state of a Terminal Services session. /// </summary> public enum WTS_CONNECTSTATE_CLASS { WTSActive, WTSConnected, WTSConnectQuery, WTSShadow, WTSDisconnected, WTSIdle, WTSListen, WTSReset, WTSDown, WTSInit, } /// <summary> /// The WTS_SESSION_INFO structure contains information about a client session on a terminal server. /// if the WTS_SESSION_INFO.SessionID==0, it means that the SESSION is the local logon user's session. /// </summary> public struct WTS_SESSION_INFO { public int SessionID; [MarshalAs(UnmanagedType.LPTStr)] public string pWinStationName; public WTS_CONNECTSTATE_CLASS state; } /// <summary> /// The SessionEnumeration function retrieves a list of WTS_SESSION_INFO on a current terminal server. /// </summary> /// <returns>a list of WTS_SESSION_INFO on a current terminal server</returns> 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; } public TSControl() { // // TODO: 在此处添加构造函数逻辑 // } } /// <summary> /// Class1 的摘要说明。 /// </summary> class Class1 { /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main(string[] args) { // // TODO: 在此处添加代码以启动应用程序 // TSControl.WTS_SESSION_INFO[] pSessionInfo=TSControl.SessionEnumeration(); for(int i=0;i<pSessionInfo.Length;i++) { if(pSessionInfo[i].SessionID!=0) { try { while(TSControl.WTSLogoffSession(0,pSessionInfo[i].SessionID, true)) { System.Threading.Thread.Sleep(3000); } } catch(Exception ex) { Console.WriteLine(ex.Message); } } } } } 
}