BitmapDataExtensionsBeginClone(IReadableBitmapData, Rectangle, AsyncConfig) Method

public static IAsyncResult BeginClone(
	this IReadableBitmapData source,
	Rectangle sourceRectangle,
	AsyncConfig? asyncConfig = null
)

<ExtensionAttribute>
Public Shared Function BeginClone ( 
	source As IReadableBitmapData,
	sourceRectangle As Rectangle,
	Optional asyncConfig As AsyncConfig = Nothing
) As IAsyncResult

public:
[ExtensionAttribute]
static IAsyncResult^ BeginClone(
	IReadableBitmapData^ source, 
	Rectangle sourceRectangle, 
	AsyncConfig^ asyncConfig = nullptr
)

[<ExtensionAttribute>]
static member BeginClone : 
        source : IReadableBitmapData * 
        sourceRectangle : Rectangle * 
        ?asyncConfig : AsyncConfig 
(* Defaults:
        let _asyncConfig = defaultArg asyncConfig null
*)
-> IAsyncResult 

Parameters

source  IReadableBitmapData

An IReadableBitmapData instance to be cloned.

sourceRectangle  Rectangle

A Rectangle that specifies the portion of the source to be cloned.

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

In .NET Framework 4.0 and above you can use also the CloneAsync(IReadableBitmapData, Rectangle, TaskConfig) method.

To get the result or the exception that occurred during the operation you have to call the EndClone method.

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

Reference