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 | pure virtual | 
Draws an arc of the specified ellipse using the specified stroke style.
| ellipse | The ellipse. | 
| dblStartAngle | The arc start angle. | 
| dblFinishAngle | The arc finish angle. | 
| bIsClockwise | TRUE if the arc has a clockwise direction. | 
| brush | The brush used to paint the arc. | 
| lineWidth | Specifies the width of the line. | 
| pStrokeStyle | The stroke style. NULL - solid line. |