Partager via


CSplitterWnd::DoScroll

Performs synchronized scrolling of split windows.

virtual BOOL DoScroll(
   CView* pViewFrom,
   UINT nScrollCode,
   BOOL bDoScroll = TRUE 
);

Parameters

  • pViewFrom
    A pointer to the view from which the scrolling message originates.

  • nScrollCode
    A scroll-bar code that indicates the user's scrolling request. This parameter is composed of two parts: a low-order byte, which determines the type of scrolling occurring horizontally, and a high-order byte, which determines the type of scrolling occurring vertically:

    • SB_BOTTOM    Scrolls to bottom.

    • 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_TOP    Scrolls to top.

  • bDoScroll
    Determines whether the specified scrolling action occurs. If bDoScroll is TRUE (that is, if a child window exists, and if the split windows have a scroll range), then the specified scrolling action can take place; if bDoScroll is FALSE (that is, if no child window exists, or the split views have no scroll range), then scrolling does not occur.

Return Value

Nonzero if synchronized scrolling occurs; otherwise 0.

Remarks

This member function is called by the framework to perform synchronized scrolling of split windows when the view receives a scroll message. Override to require an action by the user before synchronized scrolling is allowed.

Requirements

Header: afxext.h

See Also

Concepts

CSplitterWnd Class

CSplitterWnd Members

Hierarchy Chart

CSplitterWnd::DoScrollBy

CView::OnScroll