| extern "C" pid_t
      cygwin_winpid_to_pid
      ( | winpid ); | 
int winpid;Given a windows pid, converts to the corresponding Cygwin pid, if any. Returns -1 if windows pid does not correspond to a cygwin pid.
Example 2.3. Example use of cygwin_winpid_to_pid
      extern "C" cygwin_winpid_to_pid (int winpid);
      pid_t mypid;
      mypid = cygwin_winpid_to_pid (windows_pid);