ShellExecuteEx和getexitcodeprocess

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使用ShellExecuteEx(...)来午餐一个python脚本和python脚本在成功或其他错误值时使用sys.exit(0)从python main返回一个值。如何读取python脚本的退出代码？

在启动应用程序后，通过使用MsgWaitForMultipleObjects(...)等待完成脚本，然后调用GetExitCodeProcess(...)，由于某些原因，我总是从getExitCodeprocess(...)读取值1。

Python Code:

def main():
    time.sleep(10)   
    logger.info("************The End**********")
    return (15)
if __name__ == "__main__":
    sys.exit(main())
C++ Code:
SHELLEXECUTEINFO rSEI = { 0 };
    rSEI.cbSize = sizeof(rSEI);
    //rSEI.lpVerb = "runas";
    rSEI.lpVerb = "open";
    rSEI.lpFile = "python.Exe";
    rSEI.lpParameters = LPCSTR(path.c_str());
    rSEI.nShow = SW_NORMAL;
    rSEI.fMask = SEE_MASK_NOCLOSEPROCESS;
    if (ShellExecuteEx(&rSEI))   // you should check for an error here
            errorMessageID = GetLastError();        //MessageBox("Error", "Status", 0);
        WORD nStatus;
        MSG msg;     // else process some messages while waiting...
        while (TRUE)
            nStatus = MsgWaitForMultipleObjects(1, &rSEI.hProcess, FALSE, INFINITE, QS_ALLINPUT);   // drop through on user activity 
            if (nStatus == WAIT_OBJECT_0)
            {  // done: the program has ended
                break;
            while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
                DispatchMessage(&msg);
                //MessageBox("Wait...", "Status", 0);
        }  // launched process has exited
        DWORD dwCode=0;
        if (!GetExitCodeProcess(rSEI.hProcess, &dwCode)) //errorvalue
            DWORD lastError = GetLastError();
In this code as Python script exiting with 15, I am expecting to read 15 from dwCode from GetExitCodeProcess(rSEI.hProcess, &dwCode)?
感谢你们在这方面的帮助...


           
            
             起初
             
              ShellExecuteEx
             
             在这里绝对没有关系（为什么不使用
             
              CreateProcessW
             
             呢）。
             
              true
             
             - in
             
              dwCode
             
             另一个问题，可能是 "python.Exe "执行子进程，你的脚本在那里运行。


           
            
             Barmak Shemirani
            
            ：


           
            
             Windows只会报告说
             
              "python.exe"
             
             运行成功，但python模块可能已经失败。请确保它正在运行。另外，
             
              while (PeekMessage...)
             
             的作用是什么？


           
            
             David Heffernan
            
            ：


           
            
             所给的 Python 代码会失败，因为你没有导入 time 或 sys，而且 logger 也是未定义的。使用 CreateProcess 来，好吧，CreateProcess。


         
          python

c++


         
          winapi


         
          shellexecuteex


          
           已采纳


          
           
            As the comments metioned, your python script fails.
           
           
            
             Python代码样本。
            
           
           import sys
import time
import logging
import logging.handlers
logger = logging.getLogger("logger")
logger.setLevel(logging.DEBUG)
handler = logging.StreamHandler()
handler.setLevel(logging.INFO)
logger.addHandler(handler)
def main():
    time.sleep(10)  
    logger.info("************The End**********")
    return (15)
if __name__ == "__main__":
    sys.exit(main())
用.py作为后缀来命名你的Python脚本文件，而不是.Exe，例如"python.py"。
将路径值设为SHELLEXECUTEINFO.lpDirectory，并将SHELLEXECUTEINFO.lpParameters设为NULL。
或者把路径和文件组合给SHELLEXECUTEINFO.lpVerb，如"Path\\python.py"。
C++代码样本。
#include <windows.h>
#include <iostream>
#include <string>
void main()
    int errorMessageID = 0;
    std::string path = "Path";
    SHELLEXECUTEINFO rSEI = { 0 };
    rSEI.cbSize = sizeof(rSEI);
    //rSEI.lpVerb = "runas";
    rSEI.lpVerb = "open";
    rSEI.lpFile = "python.py";
    rSEI.lpParameters = NULL;
    rSEI.lpDirectory = path.c_str();
    rSEI.nShow = SW_NORMAL;
    rSEI.fMask = SEE_MASK_NOCLOSEPROCESS;
    if (!ShellExecuteEx(&rSEI))   // you should check for an error here
        errorMessageID = GetLastError();        //MessageBox("Error", "Status", 0);
    WORD nStatus;
    MSG msg;     // else process some messages while waiting...
    while (TRUE)
        nStatus = MsgWaitForMultipleObjects(1, &rSEI.hProcess, FALSE, INFINITE, QS_ALLINPUT);   // drop through on user activity 
        if (nStatus == WAIT_OBJECT_0)
        {  // done: the program has ended
            break;
        while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
            DispatchMessage(&msg);
            //MessageBox("Wait...", "Status", 0);
    }  // launched process has exited
    DWORD dwCode = 0;
    if (!GetExitCodeProcess(rSEI.hProcess, &dwCode)) //errorvalue