procedure CopyButtonClick(Sender: TObject);
begin
  if ActiveControl is TMemo then
    TMemo(ActiveControl).CopyToClipboard;
  if ActiveControl is TDBMemo then
    TDBMemo(ActiveControl).CopyToClipboard;
  if ActiveControl is TEdit then
    TEdit(ActiveControl).CopyToClipboard;
  if ActiveControl is TDBedit then
    TDBedit(ActiveControl).CopyToClipboard;
end;

procedure PasteButtonClick(Sender: TObject);
begin
  if ActiveControl is TMemo then
    TMemo(ActiveControl).PasteFromClipboard;
  if ActiveControl is TDBMemo then
    TDBMemo(ActiveControl).PasteFromClipboard;
  if ActiveControl is TEdit then
    TEdit(ActiveControl).PasteFromClipboard;
  if ActiveControl is TDBedit then
    TDBedit(ActiveControl).PasteFromClipboard;
end;