为在RichEdits中自动滚动文本，我用了如下代码： richedit1.perform (WM_VSCROLL,SB_LINEDOWN,speed); 但不管speed为任何integer（如0或3000都一样），滚动速度始终一样，为何？

若你是要捲的行數, 請試試:    SendMessage(Richedit1.Handle, EM_LINESCROLL, 0, 10);    最後的 10 是往下捲 10 行. 若為負值則為往上捲!    另外你使用的方式, 其中第三個參數是沒有用的, 應該不是捲動的速度... 請參考這篇:

richedit1.perform (par1,par2,par3);    PAR1: WM_VSCROLL PAR2: SB_BOTTOM Scrolls to the lower right. SB_ENDSCROLL Ends scroll. SB_LINEDOWN Scrolls one line down. SB_LINEUP Scrolls one line up. SB_PAGEDOWN Scrolls one page down. SB_PAGEUP Scrolls one page up. SB_THUMBPOSITION The user has dragged the scroll box (thumb) and released the mouse button. The high-order word indicates the position of the scroll box at the end of the drag operation. SB_THUMBTRACK The user is dragging the scroll box. This message is sent repeatedly until the user releases the mouse button. The high-order word indicates the position that the scroll box has been dragged to. SB_TOP Scrolls to the upper left. PAR3 NOT USE!!!!! 风花雪月 e梦情缘

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风花雪月 e梦情缘