怎么使Richedit中光标始终指到最后一行的最后面？

Richedit中数据会不断增加。要始终能看到当前的数据。该怎么做？

SendMessage(Memo->Handle, WM_VSCROLL, SB_BOTTOM, 0);

SendMessage(RichEdit1.Handle,WM_VSCROLL,SB_BOTTOM,0);