clipboard.dcu not found

I have search for this and i am unable to get my code right.

it needs to copy the clipboard contents for

1. text and show in memo
2. picture and show in image

but clipboard is never allowed, even if I add it to the dam uses.

{
Place Timage and Tmemo  on the form.
Retrieve what is in the clipboard. If it is image, it will be placed in Image1, and if text - in Memo1.
}
 
uses Clipboard;
...
 
procedure TForm1.Button1Click(Sender: TObject);
var
  MyHandle: THandle;
begin
  Clipboard.Open;
  if Clipboard.HasFormat(CF_TEXT) then
  begin
    MyHandle:=Clipboard.GetAsHandle(CF_TEXT);
    Memo1.Lines.Add(StrPas(GlobalLock(MyHandle)));
    GlobalUnlock(MyHandle);
  end;
  if (Clipboard.HasFormat(CF_BITMAP)) or
    (Clipboard.HasFormat(CF_PICTURE)) then
    Image1.Picture.Assign(Clipboard);
  Clipboard.Close;
end;

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