This is just plain weird. I have a thread in which I have included fstream and created an ofstream. I know the lines are being executed because I have set breakpoints and they get hit. But no file opening, and nothing writing?!! TetClientSink.h:

#include "trackedWindow.h"
#include <fstream>
using namespace std;

... //other declarations

ofstream tetFile;

TetClientSink.cpp

CTetClientSink::CTetClientSink(CTrackedWindow *pTrackedWindow)
{
	m_dwRef = 0;
	m_pTrackedWindow = pTrackedWindow;
	tetFile.open("eyeLog.out", ios::app);
	tetFile << "I'm here!";
	tetFile.flush();
}

Does this possibly have anything to do with the fact it's a thread? That's the one aspect of this code I don't feel I have a perfect understanding of. Let me know if posting the fstream buffer contents before/after any of the tetFile code. thanks ~Lykaios

probably "eyeLog.out" does not exist, or it does not find it because the working directory variable is not what you think, causing the append file stream to cancel?