TMSFNCPrinter handler

Good afternoon,
i have this fnction

Escape(Printer.Handle, PASSTHROUGH, 0, @BufferIn, @BufferOut);

This work fine, but if i use TTMSFNCPrinter how i can get it's handle ? in order to use the function above? (i need to reset the receipt printer before start printing)

Thank you for reply

Regards
Daniele

After some tries the above function works well and do it's job.
This function must be inserted at the beginning of

TMSFNCPrinter.OnDrawContent :=
    procedure
    begin

      if PASSTHROUGHOK then
      begin
        // Reset Printer ....
        Idx:=Escape(Printer.Handle, PASSTHROUGH, 0, @BufferIn, @BufferOut);
      end;
     .
     .
     .
    End;

Thank you for all

Regards
Daniele