ShellExecuteEx and getexitcodeprocess

本文关键字：getexitcodeprocess and ShellExecuteEx 更新时间：2023-10-16

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(...( 一些原因，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();
}

在这个代码中，作为 Python 脚本以 15 退出，我希望从 GetExitCodeProcess(rSEI.hProcess， &dwCode( 的 dwCode 中读取 15

？感谢您对此的所有帮助...

正如评论所指的那样，你的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())

用.py而不是.Exe命名你的Python脚本文件，例如"python.py"
为SHELLEXECUTEINFO.lpDirectory指定路径值，并将SHELLEXECUTEINFO.lpParameters设置为此处的NULL。或者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();
}
}

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