Ellipse and polygon functions draw ellipses and polygons. GDI draws the perimeter of each object with the selected pen and fills the interior by using the selected brush. These functions are particularly useful in drawing and charting applications. The following list briefly describes each ellipse and polygon function:
| Function | Description | |
| Chord | Draws a chord. | |
| DrawFocusRect | Draws a rectangle in the style used to indicate focus. | |
| Ellipse | Draws an ellipse. | |
| Pie | Draws a pie. | |
| Polygon | Draws a polygon. | |
| PolyPolygon | Draws a series of closed polygons that are filled as though they were a single polygon. | |
| Function | Description | |
| Rectangle | Draws a rectangle. | |
| RoundRect | Draws a rounded rectangle. |