C / C++ / MFC

FILE *InputFile,*OutputFile;
char InputFileName[] = "company.in";
char OutputFileName[] = "company.out";
char *LineFromFile = new char[100];
CString string;


InputFile = fopen(InputFileNAme,"r");
OutputFile = fopen(OutputFileName,"w");

if(InputFileName == NULL)
{
   AfxMessageBox("Unable to open input file");
   return;
}

if(OutputFileName == NULL)
{
   AfxMessageBox("Unable to open output file");
   return;
}


// read 1 line from input file until you reached EOF(note that
// max line length is 100bytes.
// otherwise you must change the length of LineFromFile and the
// total number of bytes to read.
while(fgets(LineFromFile,100,InputFile)!= NULL)
{
   string = LineFromFile;
   if(string.GetLength() == 1)
   {
      if(string == '\n')
      {
         // this is a blank line , in the middle of the file.
         // don't do nothing and continue to read.
         continue;
      }
   }
   else
   {
      //do something
   }
}

ON_COMMAND_RANGE (CMD_OPEN_FILE_0, CMD_OPEN_FILE_1024, OnOpenFile)