BitmapDataExtensionsBeginFillEllipse(IReadWriteBitmapData, Brush, RectangleF, DrawingOptions, AsyncConfig) Method

public static IAsyncResult BeginFillEllipse(
	this IReadWriteBitmapData bitmapData,
	Brush brush,
	RectangleF bounds,
	DrawingOptions? drawingOptions = null,
	AsyncConfig? asyncConfig = null
)

<ExtensionAttribute>
Public Shared Function BeginFillEllipse ( 
	bitmapData As IReadWriteBitmapData,
	brush As Brush,
	bounds As RectangleF,
	Optional drawingOptions As DrawingOptions = Nothing,
	Optional asyncConfig As AsyncConfig = Nothing
) As IAsyncResult

public:
[ExtensionAttribute]
static IAsyncResult^ BeginFillEllipse(
	IReadWriteBitmapData^ bitmapData, 
	Brush^ brush, 
	RectangleF bounds, 
	DrawingOptions^ drawingOptions = nullptr, 
	AsyncConfig^ asyncConfig = nullptr
)

[<ExtensionAttribute>]
static member BeginFillEllipse : 
        bitmapData : IReadWriteBitmapData * 
        brush : Brush * 
        bounds : RectangleF * 
        ?drawingOptions : DrawingOptions * 
        ?asyncConfig : AsyncConfig 
(* Defaults:
        let _drawingOptions = defaultArg drawingOptions null
        let _asyncConfig = defaultArg asyncConfig null
*)
-> IAsyncResult 

Parameters

bitmapData  IReadWriteBitmapData

The IReadWriteBitmapData instance to draw on.

brush  Brush

The Brush to use for filling the ellipse.

bounds  RectangleF

The bounding rectangle that defines the ellipse.

drawingOptions  DrawingOptions  (Optional)

A DrawingOptions instance that specifies the drawing options to use. If , then the default options are used. This parameter is optional.
Default value: .

asyncConfig  AsyncConfig  (Optional)

The configuration of the asynchronous operation such as parallelization, cancellation, reporting progress, etc. When Progress is set in this parameter, then this library always passes a DrawingOperation instance to the generic methods of the IAsyncProgress interface. This parameter is optional.
Default value: .

Return Value

Usage Note

When filling an ellipse, the right/bottom values of the bounding rectangle are exclusive, so if the width or height is zero, then nothing is drawn.

This method does not use optimized shortcuts. If the same ellipse is filled repeatedly, creating a Path with PreferCaching enabled and adding the ellipse to it can provide a better performance.

In .NET Framework 4.0 and above you can use also the FillEllipseAsync methods.

To finish the operation and to get the exception that occurred during the operation you have to call the EndFillEllipse method.

This method is not a blocking call even if the MaxDegreeOfParallelism property of the asyncConfig parameter is 1.

Reference