/*此代碼用于獲取通過終端登錄的當前用戶winlogon進程pid
在開了終端服務的機器上運行沒問題，沒有開終端服務的得不到pid，自己修改吧
Author:009
Email:baicker.009(a)gmail.com
Web:http://www.tkk7.com/baicker
Date:20070720
*/
				#include 
				<stdio.h>#include <windows.h>#include <wtsapi32.h>#pragma comment(lib, "wtsapi32.lib")

void main()
{
	DWORD ProcessId, SessionId;
	BOOL Res=0;
	DWORD winlogonPid = 0;
	PWTS_PROCESS_INFO pProcessInfo=NULL;
	DWORD ProcessCount = 0;
	DWORD CurrentProcess = 0;
	ProcessId = GetCurrentProcessId();
	Res = ProcessIdToSessionId( ProcessId, &SessionId );
	//printf("Now SessionID = %d\n", SessionId ); 
	if (WTSEnumerateProcesses(WTS_CURRENT_SERVER_HANDLE, 0, 1, &pProcessInfo, &ProcessCount))
	{
		// dump each process description
		for (CurrentProcess = 0; CurrentProcess < ProcessCount; CurrentProcess++)
		{
			if( strcmp(pProcessInfo[CurrentProcess].pProcessName, "winlogon.exe") == 0 && pProcessInfo[CurrentProcess].SessionId == SessionId )
			{
				winlogonPid = pProcessInfo[CurrentProcess].ProcessId;
				break;
			}
		}
		WTSFreeMemory(pProcessInfo);
	}else{
		printf("WTSEnumerateProcesses() failed\n");  //沒有終端服務就到這里了
	}
	printf("Current winlogon's pid is %d\n",winlogonPid);
}