| BeginFillRectangle(IReadWriteBitmapData, Color32, Rectangle, DrawingOptions, AsyncConfig) | Begins to fill a rectangle with the specified color asynchronously. |
| BeginFillRectangle(IReadWriteBitmapData, Color32, RectangleF, DrawingOptions, AsyncConfig) | Begins to fill a rectangle with the specified color asynchronously. |
| BeginFillRectangle(IReadWriteBitmapData, Brush, Rectangle, DrawingOptions, AsyncConfig) | Begins to fill a rectangle with the specified Brush asynchronously. |
| BeginFillRectangle(IReadWriteBitmapData, Brush, RectangleF, DrawingOptions, AsyncConfig) | Begins to fill a rectangle with the specified Brush asynchronously. |