我正在尝试使用 CreateProcess 启动一个新的环境块并在新的环境块中运行批处理文件。我已经阅读了 CreateProcess 的 msdn 示例,并得出了如下所示的代码。
发生了什么,它将打开新的命令提示符,并停在那里。由于某种原因,它不会运行我的 .bat 文件。使用 system("CALL path") 将调用 .bat 文件。
#include <iostream>
#define WINDOWS_LEAN_AND_MEAN
#include <Windows.h>
#include <strsafe.h>
#define BUFSIZE 4096
int main()
{
//system("CALL C:\\HFSS\\setup_vars.bat");
//return 0;
LPWCH chNewEnv;
LPTSTR lpszCurrentVariable;
DWORD dwFlags = 0;
TCHAR szAppName[] = TEXT("C:\\windows\\system32\\cmd.exe");
TCHAR cmdArgs[] = TEXT("C:\\HFSS\\setup_var.bat");
STARTUPINFO si;
PROCESS_INFORMATION pi;
BOOL fSuccess;
// Copy environment strings into an environment block.
chNewEnv = GetEnvironmentStrings();
lpszCurrentVariable = (LPTSTR)chNewEnv;
if (FAILED(StringCchCopy(lpszCurrentVariable, BUFSIZE, TEXT("MySetting=A"))))
{
printf("String copy failed\n");
return FALSE;
}
lpszCurrentVariable += lstrlen(lpszCurrentVariable) + 1;
if (FAILED(StringCchCopy(lpszCurrentVariable, BUFSIZE, TEXT("MyVersion=2"))))
{
printf("String copy failed\n");
return FALSE;
}
// Terminate the block with a NULL byte.
lpszCurrentVariable += lstrlen(lpszCurrentVariable) + 1;
*lpszCurrentVariable = (TCHAR)0;
// Create the child process, specifying a new environment block.
SecureZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
#ifdef UNICODE
dwFlags = CREATE_UNICODE_ENVIRONMENT;
#endif
fSuccess = CreateProcess(szAppName, cmdArgs, NULL, NULL, TRUE, dwFlags,
(LPVOID)chNewEnv, // new environment block
NULL, &si, &pi);
if (!fSuccess)
{
printf("CreateProcess failed (%d)\n", GetLastError());
return FALSE;
}
std::cout << "In new environment\n";
WaitForSingleObject(pi.hProcess, INFINITE);
return TRUE;
}