Read the output of command line

Hello

I am running a program of external command in my application CVI line. I use this code (that I found somewhere here):

Char [command] = "test.exe";
If STARTUPINFO;
PROCESS_INFORMATION piProcess;
BOOLEAN result;
DWORD dwExitCode;
int exitCode;

ZeroMemory (& TR, sizeof TR);
Si.CB = sizeof is;
result = CreateProcess (NULL, NULL, NULL, FALSE, CREATE_DEFAULT_ERROR_MODE command |) DETACHED_PROCESS, NULL, NULL, & TR, & piProcess);
 
If (result == TRUE) {}
CloseHandle (piProcess.hThread);

If (WaitForSingleObject (piProcess.hProcess, INFINITE)! = WAIT_FAILED)
GetExitCodeProcess (piProcess.hProcess, & dwExitCode);
    
CloseHandle (piProcess.hProcess);
 
exitCode = dwExitCode;
}

It works as it should... Now I wonder how it is possible to record or to analyze the output of the command line app...

See you soon

I've made a few changes to the CreateProcess call and it seems to "work". Output has been redirected in test.txt, but a black console window appears while test.exe is running. I put si.dwX to-10000 so that it should be off the screen.

Char [command] = "cmd.exe /c test.exe > test.txt ';
If STARTUPINFO;
PROCESS_INFORMATION piProcess;
BOOLEAN result;
DWORD dwExitCode;
int exitCode;

ZeroMemory (& TR, sizeof TR);
si.dwFlags = STARTF_USEPOSITION;
si.dwX = - 10000;
Si.CB = sizeof is;
result = CreateProcess(,command,,,TRUE,CREATE_DEFAULT_ERROR_MODE,,,&si,&piProcess);

If (result == TRUE) {}
CloseHandle (piProcess.hThread);
If (WaitForSingleObject (piProcess.hProcess, INFINITE)! = WAIT_FAILED)
GetExitCodeProcess (piProcess.hProcess, & dwExitCode);

CloseHandle (piProcess.hProcess);

exitCode = dwExitCode;
}

Michael

NEITHER

Tags: NI Software

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