Called by the framework to render the borders of the control bar.
virtual void DrawBorders(
   CDC* pDC,
   CRect& rect 
);
Parameters
- pDC 
 Points to the device context to be used for rendering the borders of the control bar.
- rect 
 A CRect object containing the dimensions of the control bar.
Remarks
Override this function to customize the appearance of the control bar borders.
Requirements
Header: afxext.h