| 
 | virtual | 
Called by the framework to draw spin buttons.
Override this function in a derived class to customize appearance of spin buttons.
| pDC | A pointer to a device context. | 
| rectSpin | Bounding rectangle of spin control. | 
| bOrientation | Orientation of spin control. If TRUE, the spin control is horizontal; otherwise - vertical. | 
| nState | Spin button state. | 
| pSpinCtrl | A pointer to spin control whose buttons are being drawn. |