procedure TForm1.Button2Click(Sender: TObject);
begin
sswin.View.next;//下一页
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
try
pptA.Disconnect;
pptA.Quit;
if assigned(pptA) then pptA.Free;
except
showmessage('PowerPoint has already closed!');
end;
end;