Q.   How can you do scrolling functions in a TForm component using  keyboard commands?  For example, scrolling up and down when a  PgUp or PgDown is pressed.  Is there some simple way to do this or does it have to be programmed by capturing the keystrokes and manually responding to them?

A.    Form scrolling is accomplished by modifying the VertScrollbar  or HorzScrollbar Postion properties of the form.  The following code demonstrates how to do this:

procedure TForm1.FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
const
  PageDelta = 10;
begin
  With VertScrollbar do
    if Key = VK_NEXT then  Position := Position + PageDelta
    else if Key = VK_PRIOR then Position := Position - PageDelta;
end;