[fpc-devel] What is / Where originates : FLAG_TRACE_BIT = $100; { our own invention } IN rtl\win\wininc\defines.inc

[Martin Frb]

C:\FPC\SVN\fpc_2.6.4\rtl\win\wininc\defines.inc

line 5669 (in 3.6.4)
   { our own invention  }
      FLAG_TRACE_BIT = $100;

This is only there for 32 bit and wince, but not for win64.

But the problem is finding out what it actually means. All googling has 
not brought any definition to it.

 From usage in old code in fpdebug, it is given as flag to

   Context^.EFlags := Context^.EFlags or FLAG_TRACE_BIT;
   if not SetThreadContext(Handle, Context^)


An ideas?