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Author Topic: Log Error Name from GetLastError()  (Read 2886 times)

lucindom

  • Guest
Log Error Name from GetLastError()
« on: April 18, 2010, 02:33:36 am »


BOOL LogErr(  LPSTR lpmsg, DWORD err)
{
   char buf[256];
   HANDLE fh;
   SYSTEMTIME st;
   char lcfic[MAX_PATH];
   FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, 255, NULL);
   GetSystemTime( &st );
   wsprintf( lcfic, "%s\\E%4.4d%02.2d%02.2d.txt", MyApp.myAppDir, st.wYear, st.wMonth, st.wDay);
   if  ( (fh = fopen(lcfic , "a+")) != NULL  )
      {
         wsprintf( lcfic, "%02.2d:%02.2d:%02.2d ", lcfic );
         fwrite( lcfic, 1, 9, fh );
         fputs( lpmsg, fh );
         fputs( buf, fh );
         fwrite( "\r\n", 1, 2, fh );
         fclose( fh );
      }
   return TRUE;
}


Using:
fh = CreateFile ("c:\\texto.txt", GENERIC_READ, FILE_SHARE_READ,0, OPEN_EXISTING, 0, 0);
   if (!( INVALID_HANDLE_VALUE== fh )) {
               
      } else          LogErr( "Leyendo Fichero", GetLastError());