Title: Change focus to other component
This example shows changing of focus between three components on a button click.
var
i: Integer = 2;
...
procedure TForm1.Button1Click(Sender: TObject);
begin
case (i mod 3) of
1: Edit1.SetFocus;
2: Memo1.SetFocus;
0: ListBox1.SetFocus;
end;
Inc(i);
end;