this event is not working in firemonkey . Why ?     
procedure TFrameMemoLineCount.mTxtKeyDown(Sender: TObject; var Key: Word;
var KeyChar: WideChar; Shift: TShiftState);  
begin

  if (Key = vkC) and (ssCtrl in Shift) then
  begin
    mTxt.CopyToClipboard;
    Key := 0; // Prevenir o processamento adicional da tecla
  end;
  if (Key = vkV) and (ssCtrl in Shift) then
  begin
    mTxt.PasteFromClipboard;
    Key := 0; // Prevenir o processamento adicional da tecla
  end;

end;

I have a delphi multiplataform application i whould like my users could make copy and past on TMemo component. I have 2 buttons copy and paste. It work fine, but use Control C and Control V in Windows application its a good thing. My users dont what use past button. They want use Control V. I’m finishing a version of my editor chords and lyrics software. User can save many songs on sqlite database. Software can read and find chords and it draw diagrams chords found on text.