This topic is included for completeness. For more detail see the source code located in the VC\atlmfc\src\mfc folder of your Visual Studio installation.
virtual void OnDrawScrollButtons(
   CDC* pDC,
   const CRect& rect,
   const int nBorderSize,
   int iImage,
   BOOL bHilited
);
Parameters
[in] pDC
[in] rect
[in] nBorderSize
[in] iImage
[in] bHilited
Requirements
Header: afxvisualmanager.h