Writing or Copying Visual C++ console output to text file

Question

I am working with Intel Perceptual Computing SDK Voice Recognition Module. Using Microsoft Visual Studio 2012 Professional, the SDK sample perceives the dictation and after processing the voice input prints it on the console window. All i want to do is to copy the output printed on console window and write it in a .txt file. I am following the general way but somehow the text written in file is just some numbers.

// Callback for recognized commands and alerts
class MyHandler: public PXCVoiceRecognition::Recognition::Handler, public    PXCVoiceRecognition::Alert::Handler 

{ public: MyHandler(std::vector &commands) { this->commands=commands; }

virtual void PXCAPI OnRecognized(PXCVoiceRecognition::Recognition *cmd) 
{
  wprintf_s(L"\nRecognized: <%s>\n", (cmd->label>=0)?commands[cmd->label]:cmd-    >dictation); //this line prints the dictated statement//
  // writing to a text file
  printf("Writing to the txt file...");
  std::ofstream out("c:\\MyVoice.txt");
  out<<cmd->dictation;
}

protected:
std::vector<pxcCHAR*> commands;

};

int wmain(int argc, wchar_t* argv[]) {
// Create session
PXCSmartPtr<PXCSession> session;
pxcStatus sts = PXCSession_Create(&session);
if (sts < PXC_STATUS_NO_ERROR) {
wprintf_s(L"Failed to create the PXCSession\n");
return 3;
}
// Parse command line
UtilCmdLine cmdl(session);
if (!cmdl.Parse(L"-file-iuid-grammar-sdname-realtime-eos",argc, argv)) return 1;

// Create PXCVoiceRecognition instance
PXCSmartPtr<PXCVoiceRecognition> vc;
sts=session->CreateImpl(cmdl.m_iuid, PXCVoiceRecognition::CUID, (void **)&vc);
if (sts<PXC_STATUS_NO_ERROR) 
{
 wprintf_s(L"Failed to create PXCVoiceRecognition\n");
 return 3;
}

// Find and initilize capture module
UtilCaptureFile capture(session,cmdl.m_recordedFile,false);
if (cmdl.m_sdname) capture.SetFilter(cmdl.m_sdname);

 // Query PXCVoiceRecognition profile
 PXCVoiceRecognition::ProfileInfo profile;
 for (int i=0;;i++) 
 {
  sts=vc->QueryProfile(i, &profile);
  sts=capture.LocateStreams(&profile.inputs);
  return 3;
 }
if (cmdl.m_realtime >= 0) capture.SetRealtime(cmdl.m_realtime);
// Set PXCVoiceRecognition profile
if (cmdl.m_eos) profile.endOfSentence = cmdl.m_eos;
sts=vc->SetProfile(&profile);

// Grammar intialization
pxcUID grammar = 0;
if (cmdl.m_grammar.size()<0)
{
  wprintf_s(L"Dictation Mode\n");
}

vc->SetGrammar(grammar);  
// SubscribeRecognition
MyHandler handler(cmdl.m_grammar);
vc->SubscribeRecognition(80, &handler); 
vc->SubscribeAlert(&handler);

// Processing loop
PXCSmartPtr<PXCAudio> audio;
PXCSmartSPArray sps(3);
wprintf_s(L"Press any key to exit\n");

while (!_kbhit()) 
{
  sts = capture.ReadStreamAsync(audio.ReleaseRef(),sps.ReleaseRef(0));
  sts=vc->ProcessAudioAsync(audio,sps.ReleaseRef(1));
  sps.SynchronizeEx();
}

}

Answer 1

You can use > to redirect the output of the command run by Visual Studio. Add it to the command arguments by selecting your project in the solution explorer and clicking PROJECT->Properties->Configuration Properties->Debugging. Then enter > output.txt into the Command Arguments. After you run your application, the file will appear in the Working Directory - which by default is the same directory as your .sln files.

Answer 2

I think he is simply suggesting to run your executable and direct it to a file:
C:\\.exe > C:\\output.txt

Here is a link about redirection .

Answer 3

Generally speaking, if you could produce the output correctly in the console window, then you can just run the executable with a command line argument like > c:\\result.txt to redirect the standard output to a file (I'm assuming you are on Windows since you have the visual-c++ tag), thus you don't need to change your code at all (everything you put to cout will be written to the file specified in the argument). If you are using the Visual Studio GUI, command line arguments can be specified in the project's properties page, otherwise you could just type the command in a console window by hand.