请教个问题.我的pagecontrol1的tabsheet2（tabsheet2不是动态自己创建的）上有一个TRichEdit，现用TRichEdit大开文件时，无法用键盘的PageUP 及PageDown键来翻页。若TRichEdit直接放在Form1上，而非在tabsheet2上，可用设置Form1的ActiveControl Events为RichEdit1来实现，现在该如何呢？ 發表人 - vclphi 於 2003/05/27 11:13:32

會嗎 需要什麼ActiveControl Events嗎 我直接放一個RichEdit 在Form上面 然後用 for (int i = 0 ; i <100 ;i ) RichEdit1->Lines->Add("test"); 把資料寫入 點選RichEdit ，再按PageUpDown都非常的正常 完全沒有改變任何的設定

报歉，是我画蛇添足，我看DELPHI的Demos的RichEdit 例子中设置Form1的ActiveControl Events，以为是必须的。请问这ActiveControl Events是干什么的？看Help说明，好像是处理键盘，Mouse等的focus的。

取自於help on -line

se ActiveControl to get or set the control that has focus on the form. Only one control can have focus at a given time in an application.    If the form does not have focus, ActiveControl is the control on the form that will receive focus when the form receives focus.    Note:        When focus shifts to another control, ActiveControl is updated before the OnExit event occurs.