SendMessage(WebBrowser1.Handle, WM_VSCROLL, SB_PAGEDOWN, 0);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 Scrolls to the absolute position. The current position is specified by the nPos parameter. SB_THUMBTRACK Drags scroll box to the specified position. The current position is specified by the nPos parameter. SB_TOP Scrolls to the upper left
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 Scrolls to the absolute position. The current position is specified by the nPos parameter.
SB_THUMBTRACK Drags scroll box to the specified position. The current position is specified by the nPos parameter.
SB_TOP Scrolls to the upper left