C++ Strides Problem!

 
if(GetAsyncKeyState(VK_HOME))
		{
		ofstream output;
		string dateiname = "stridelog.txt";
 
		output.open(dateiname.c_str(), ios_base::out | ios_base::app);
 
		output << "StrideNumber:\\t" << stride << endl;
 
		output.close();
		}