Código Delphi [-] procedure TForm1.EditKeyPress(Sender: TObject; var Key: Char); begin if not (UpCase(Key) in[#8,'A'..'Z']) then begin Beep; Key:= #0; end; end;
procedure TForm1.EditKeyPress(Sender: TObject; var Key: Char); begin if not (UpCase(Key) in[#8,'A'..'Z']) then begin Beep; Key:= #0; end; end;