Windows API，C++：有没有办法使用WriteFile()创建一个句柄来将输出重定向到一个字符串？

#include <windows.h>
#include <iostream>
#include <string>

std::string GetProcessOutput(const std::string& command)
{
    SECURITY_ATTRIBUTES saAttr;
    saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
    saAttr.bInheritHandle = TRUE;
    saAttr.lpSecurityDescriptor = NULL;

    HANDLE hReadPipe, hWritePipe;
    if (!CreatePipe(&hReadPipe, &hWritePipe, &saAttr, 0))
    {
        return "";
    }

    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    ZeroMemory(&si, sizeof(STARTUPINFO));
    si.cb = sizeof(STARTUPINFO);
    si.hStdError = hWritePipe;
    si.hStdOutput = hWritePipe;
    si.dwFlags |= STARTF_USESTDHANDLES;

    if (!CreateProcess(NULL, const_cast<LPSTR>(command.c_str()), NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi))
    {
        CloseHandle(hWritePipe);
        CloseHandle(hReadPipe);
        return "";
    }

    CloseHandle(hWritePipe);

    DWORD bytesRead;
    const int bufferSize = 4096;
    char buffer[bufferSize];
    std::string output;

    while (ReadFile(hReadPipe, buffer, bufferSize - 1, &bytesRead, NULL))
    {
        if (bytesRead == 0)
        {
            break;
        }
        buffer[bytesRead] = '\0';
        output += buffer;
    }

    CloseHandle(hReadPipe);
    CloseHandle(pi.hProcess);
    CloseHandle(pi.hThread);

    return output;
}

int main()
{
    std::string command = "dir"; // 你可以替换为任何其他命令
    std::string output = GetProcessOutput(command);
    std::cout << output << std::endl;

    return 0;
}