MFC implements methods for appending data at the end of a file _c language

This article is an example of how MFC implements appending data at the end of a file. Share to everyone for your reference. Specifically as follows:

BOOL cdeldlg::writetofile (CString svalue)
{
  CString sfile = Getexepath () + "\\1.log";
  CStdioFile file;
  if (file. Open (sfile, Cfile::modecreate | Cfile::modewrite | cfile::modenotruncate))
  {
    file. Seektoend (); Move the file pointer to the end
    . WriteString (svalue);
    File. Close ();
  }
  return FALSE;
}

where the Getexepath () code is as follows:

Returns the directory where the executable file is located (not including the last ' \ ')
CString Getexepath ()
{
  char sfilename[256] = {0};
  CString spath = _t ("");
  GetModuleFileName (AfxGetInstanceHandle (), sfilename, 255);
  Spath.format ("%s", sfilename);
  int pos = spath.reversefind (' \ \ ');
  if (POS!=-1)
    spath = Spath.left (POS);
  else
    spath = _t ("");
  return spath;
}

I hope this article will help you with the MFC program design.