I am hoping someone can help me with the above comport component.

I am trying to get a trigger when the com port receives a Xoff (#19).

I can get it to trigger on other characters but not Xon or Xoff.

this works  (start string is set with #13)
procedure TFormMain.ApdDataPacket2StringPacket(Sender: TObject;
  Data: String);
begin
   showmessage('Got CR');
end;

this does not work  (start string is set with #19)
procedure TFormMain.ApdDataPacket1StringPacket(Sender: TObject;
  Data: String);
begin
  showmessage('Got XOFF');
end;





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