name of file created by tmpfile()

[Aditya Bhagwat]

Dear all,

Consider following code:

   [fid,msg] = tmpfile()
   fprintf(fid, "hello");

Is there any way of finding out the name of the file to which "hello" 
has been written? I do know the file identifier (stored in fid), but 
don't know the file name.

Regards and many thanks for your help,

Aditya