| 
 | virtual | 
Called by the framework when it need to display the splitter drag box of split window.
Override this function in a derived class in order to customize appearance of the splitter drag box of a split window.
| pDC | A pointer to a device context. | 
| pSplitterWnd | A to a split window whose box is drawn. | 
| rect | Specifies the bounding rectangle of a split window. |