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Delphi source code for Components >> Check if Undo is possible in a TMemo


Category: Components
Title: Check if Undo is possible in a TMemo
Date added: 15.03.2006
Hits: 7195



procedure TForm1.Button1Click(Sender: TObject);
begin
  if Memo1.Perform(EM_CANUNDO, 0, 0) <> 0 then
    ShowMessage('Undo is possible')
  else
    ShowMessage('Undo is not possible');
end;


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