exec_bat_and_echo_in_cmd.cpp

 // Set up the command and process information structures
 STARTUPINFO startupInfo = {};
 startupInfo.cb = sizeof(startupInfo);
 SECURITY_ATTRIBUTES saAttr = {};
 saAttr.nLength = sizeof(saAttr);
 saAttr.bInheritHandle = TRUE;


 // Create pipes for redirecting standard output
 HANDLE hChildStd_OUT_Rd = NULL;
 HANDLE hChildStd_OUT_Wr = NULL;
 if (!CreatePipe(&hChildStd_OUT_Rd, &hChildStd_OUT_Wr, &saAttr, 0)) {
     std::cerr << "CreatePipe failed\n";
     return 1;
 }

 // Ensure the read handle to the pipe for STDOUT is not inherited
 SetHandleInformation(hChildStd_OUT_Rd, HANDLE_FLAG_INHERIT, 0);

 // Update startup information to use the write end of the pipe
 startupInfo.hStdOutput = hChildStd_OUT_Wr;
 startupInfo.dwFlags |= STARTF_USESTDHANDLES;

 // Create the process
 PROCESS_INFORMATION processInfo = {};
 if (!CreateProcess(batchFilePath, (LPWSTR)batchFilePath, nullptr, nullptr, TRUE, 0, nullptr, nullptr, &startupInfo, &processInfo)) {
     std::cerr << "CreateProcess failed\n";
     return 1;
 }

 // Close the write end of the pipe since it's not needed in this process
 CloseHandle(hChildStd_OUT_Wr);

 // Read and print the output from the process
 CHAR buffer[4096*6];
 DWORD bytesRead;
 int line = 1;
 while (ReadFile(hChildStd_OUT_Rd, buffer, sizeof(buffer), &bytesRead, nullptr) && bytesRead > 0) {
     buffer[bytesRead] = '\0';
     std::cout<<line<<": " << buffer;
     memset(buffer, 0x00, sizeof(buffer));
     line++;
 }

 // Close handles
 CloseHandle(hChildStd_OUT_Rd);
 CloseHandle(processInfo.hProcess);
 CloseHandle(processInfo.hThread);

 return 0;