如何获得一个进程的主线程ID（通过其ID知道）？ [英] How to get the main thread ID of a process (known by its ID)?

问题描述

你能帮助我找到的主要（唯一）线程由ID进程给予了ID，好吗？

任务方面：
正在运行的进程（目前）没有窗户，但一个（一些）线程（S）。

求购：
在主线程 WM_QUIT 的发布只。

不是通缉：
使用 TerminateProcess 或发布 WM_QUIT 在非主线程。

解决方案

 的#ifndef MAKEULONGLONG
的#define MAKEULONGLONG（LDW，HDW）（（ULONGLONG（HDW）所述;＆下; 32）|（（LDW）及为0xFFFFFFFF））
＃万一的#ifndef MAXULONGLONG
＃定义MAXULONGLONG（（ULONGLONG）〜（（ULONGLONG）0））
＃万一布尔CloseProcessMainThread（DWORD dwProcID）
{
  DWORD dwMainThreadID = 0;
  ULONGLONG ullMinCreateTime = MAXULONGLONG;  HANDLE hThreadSnap = CreateToolhelp32Snapshot（TH32CS_SNAPTHREAD，0）;
  如果（hThreadSnap！= INVALID_HANDLE_VALUE）{
    THREADENTRY32 TH32;
    th32.dwSize = sizeof的（THREADENTRY32）;
    BOOL BOK = TRUE;
    对于（BOK = Thread32First（hThreadSnap，＆安培; TH32）; BOK;
         BOK = Thread32Next（hThreadSnap，＆安培; TH32））{
      如果（th32.th32OwnerProcessID == dwProcID）{
        HANDLE hThread =的OpenThread（THREAD_QUERY_INFORMATION，
                                    TRUE，th32.th32ThreadID）;
        如果（hThread）{
          FILETIME afTimes [4] = {0};
          如果（GetThreadTimes（hThread，
                             ＆放大器; afTimes [0]，＆放大器; afTimes [1]，＆放大器; afTimes [2]，＆放大器; afTimes [3]））{
            ULONGLONG ullTest = MAKEULONGLONG（afTimes [0] .dwLowDateTime，
                                              afTimes [0] .dwHighDateTime）;
            如果（ullTest＆安培;＆安培; ullTest＆LT; ullMinCreateTime）{
              ullMinCreateTime = ullTest;
              dwMainThreadID = th32.th32ThreadID; //让它成为主... :)
            }
          }
          CloseHandle的（hThread）;
        }
      }
    }
UNDER_CE的#ifndef
    CloseHandle的（hThreadSnap）;
＃其他
    CloseToolhelp32Snapshot（hThreadSnap）;
＃万一
  }  如果（dwMainThreadID）{
    PostThreadMessage（dwMainThreadID，WM_QUIT，0，0）; //闭上你的眼睛...
  }  回报（0 = dwMainThreadID！）;
}
 

Can you help me to find the main (only) thread ID of a given by ID process, please ?

Task context: A running process has (at the moment) no windows but a(some) thread(s).

Wanted: Posting of WM_QUIT at the main thread only.

Not-wanted: Using of TerminateProcess or posting WM_QUIT at the non-primary threads.

解决方案

#ifndef MAKEULONGLONG
#define MAKEULONGLONG(ldw, hdw) ((ULONGLONG(hdw) << 32) | ((ldw) & 0xFFFFFFFF))
#endif

#ifndef MAXULONGLONG
#define MAXULONGLONG ((ULONGLONG)~((ULONGLONG)0))
#endif

bool CloseProcessMainThread(DWORD dwProcID)
{
  DWORD dwMainThreadID = 0;
  ULONGLONG ullMinCreateTime = MAXULONGLONG;

  HANDLE hThreadSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
  if (hThreadSnap != INVALID_HANDLE_VALUE) {
    THREADENTRY32 th32;
    th32.dwSize = sizeof(THREADENTRY32);
    BOOL bOK = TRUE;
    for (bOK = Thread32First(hThreadSnap, &th32); bOK;
         bOK = Thread32Next(hThreadSnap, &th32)) {
      if (th32.th32OwnerProcessID == dwProcID) {
        HANDLE hThread = OpenThread(THREAD_QUERY_INFORMATION,
                                    TRUE, th32.th32ThreadID);
        if (hThread) {
          FILETIME afTimes[4] = {0};
          if (GetThreadTimes(hThread,
                             &afTimes[0], &afTimes[1], &afTimes[2], &afTimes[3])) {
            ULONGLONG ullTest = MAKEULONGLONG(afTimes[0].dwLowDateTime,
                                              afTimes[0].dwHighDateTime);
            if (ullTest && ullTest < ullMinCreateTime) {
              ullMinCreateTime = ullTest;
              dwMainThreadID = th32.th32ThreadID; // let it be main... :)
            }
          }
          CloseHandle(hThread);
        }
      }
    }
#ifndef UNDER_CE
    CloseHandle(hThreadSnap);
#else
    CloseToolhelp32Snapshot(hThreadSnap);
#endif
  }

  if (dwMainThreadID) {
    PostThreadMessage(dwMainThreadID, WM_QUIT, 0, 0); // close your eyes...
  }

  return (0 != dwMainThreadID);
}

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