public static List<SessionInfo> ListSessions(string serverName, string userName, string domainName,
string clientName, WTS_CONNECTSTATE_CLASS? state)
{
IntPtr server = IntPtr.Zero;
List<SessionInfo> sessions = new List<SessionInfo>();
server = OpenServer(serverName);
try
{
IntPtr ppSessionInfo = IntPtr.Zero;
Int32 count = 0;
Int32 retval = WTSEnumerateSessions(server, 0, 1, ref ppSessionInfo, ref count);
Int32 dataSize = Marshal.SizeOf(typeof(WTS_SESSION_INFO));
Int32 current = (int)ppSessionInfo;
if (retval != 0)
{
for (int i = 0; i < count; i++)
{
SessionInfo sessionInfo = new SessionInfo();
WTS_SESSION_INFO si = (WTS_SESSION_INFO)Marshal.PtrToStructure((System.IntPtr)current, typeof(WTS_SESSION_INFO));
current += dataSize;
sessionInfo.Id = si.SessionID;
sessionInfo.UserName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSUserName);
sessionInfo.DomainName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSDomainName);
sessionInfo.ClientName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSClientName);
sessionInfo.State = si.State;
if (userName != null || domainName!=null || clientName != null || state!=null) //In this case, the caller is asking to return only matching sessions
{
if (userName != null && !String.Equals(userName, sessionInfo.UserName, StringComparison.CurrentCultureIgnoreCase))
continue; //Not matching
if (clientName != null && !String.Equals(clientName, sessionInfo.ClientName, StringComparison.CurrentCultureIgnoreCase))
continue; //Not matching
if (domainName != null && !String.Equals(domainName, sessionInfo.DomainName, StringComparison.CurrentCultureIgnoreCase))
continue; //Not matching
if (state != null && sessionInfo.State != state.Value)
continue;
}
sessions.Add(sessionInfo);
}
WTSFreeMemory(ppSessionInfo);
}
}
finally
{
CloseServer(server);
}
return sessions;
}
public static List <SessionInfo> ListSessions(string serverName, string userName, string domainName,
string clientName, WTS_CONNECTSTATE_CLASS?state)
{
var server = IntPtr.Zero;
var sessions = new List <SessionInfo>();
server = OpenServer(serverName);
try
{
var ppSessionInfo = IntPtr.Zero;
var count = 0;
var retval = WTSEnumerateSessions(server, 0, 1, ref ppSessionInfo, ref count);
var dataSize = Marshal.SizeOf(typeof(WTS_SESSION_INFO));
var current = (int)ppSessionInfo;
if (retval != 0)
{
for (var i = 0; i < count; i++)
{
var sessionInfo = new SessionInfo();
var si = (WTS_SESSION_INFO)Marshal.PtrToStructure((IntPtr)current, typeof(WTS_SESSION_INFO));
current += dataSize;
sessionInfo.Id = si.SessionID;
sessionInfo.UserName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSUserName);
sessionInfo.DomainName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSDomainName);
sessionInfo.ClientName = QuerySessionInfo(server, sessionInfo.Id, WTS_INFO_CLASS.WTSClientName);
sessionInfo.State = si.State;
if (userName != null || domainName != null || clientName != null || state != null
) //In this case, the caller is asking to return only matching sessions
{
if (userName != null && !string.Equals(userName, sessionInfo.UserName,
StringComparison.CurrentCultureIgnoreCase))
{
continue; //Not matching
}
if (clientName != null && !string.Equals(clientName, sessionInfo.ClientName,
StringComparison.CurrentCultureIgnoreCase))
{
continue; //Not matching
}
if (domainName != null && !string.Equals(domainName, sessionInfo.DomainName,
StringComparison.CurrentCultureIgnoreCase))
{
continue; //Not matching
}
if (state != null && sessionInfo.State != state.Value)
{
continue;
}
}
sessions.Add(sessionInfo);
}
WTSFreeMemory(ppSessionInfo);
}
}
finally
{
CloseServer(server);
}
return(sessions);
}
