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使用 ShellExecuteEx(..) 午餐 python 脚本和 python 脚本从 python main 使用 sys.exit(0) 成功或其他错误值返回一个值。如何读取 python 脚本退出代码？

启动应用程序后，使用 MsgWaitForMultipleObjects (...) 等待完成脚本，然后调用 GetExitCodeProcess(...) 出于某种原因，我总是从 getExitCodeprocess(..) 读取值 1

蟒蛇代码：

def main():
    time.sleep(10)   
    logger.info("************The End**********")
    return (15)

if __name__ == "__main__":
    sys.exit(main())

C++ 代码：

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
            ;
        else
            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();
        }

在这段代码中，作为 Python 脚本以 15 退出，我期望从 GetExitCodeProcess(rSEI.hProcess, &dwCode) 的 dwCode 中读取 15？

感谢您对此的所有帮助...

4

1 回答 1

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  1. 正如评论所提到的，您的 python 脚本失败了。

Python 代码示例：

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())

  1. 将 Python 脚本文件命名.py为后缀而不是.Exe，例如"python.py"

  2. 将路径值赋予SHELLEXECUTEINFO.lpDirectory，并SHELLEXECUTEINFO.lpParameters在NULL此处设置。或将路径和文件组合提供给SHELLEXECUTEINFO.lpVerb，例如"Path\\python.py"

C++ 代码示例：

#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
    {
        DWORD lastError = GetLastError();
    }
}
于 2019-09-09T03:22:44.593 回答