BitmapDataExtensionsBeginResize Method

public static IAsyncResult BeginResize(
	this IReadableBitmapData source,
	Size newSize,
	ScalingMode scalingMode = ScalingMode.Auto,
	bool keepAspectRatio = false,
	AsyncConfig? asyncConfig = null
)

<ExtensionAttribute>
Public Shared Function BeginResize ( 
	source As IReadableBitmapData,
	newSize As Size,
	Optional scalingMode As ScalingMode = ScalingMode.Auto,
	Optional keepAspectRatio As Boolean = false,
	Optional asyncConfig As AsyncConfig = Nothing
) As IAsyncResult

public:
[ExtensionAttribute]
static IAsyncResult^ BeginResize(
	IReadableBitmapData^ source, 
	Size newSize, 
	ScalingMode scalingMode = ScalingMode::Auto, 
	bool keepAspectRatio = false, 
	AsyncConfig^ asyncConfig = nullptr
)

[<ExtensionAttribute>]
static member BeginResize : 
        source : IReadableBitmapData * 
        newSize : Size * 
        ?scalingMode : ScalingMode * 
        ?keepAspectRatio : bool * 
        ?asyncConfig : AsyncConfig 
(* Defaults:
        let _scalingMode = defaultArg scalingMode ScalingMode.Auto
        let _keepAspectRatio = defaultArg keepAspectRatio false
        let _asyncConfig = defaultArg asyncConfig null
*)
-> IAsyncResult 

Parameters

source  IReadableBitmapData

The source IReadableBitmapData to resize.

newSize  Size

The requested new size.

scalingMode  ScalingMode  (Optional)

A ScalingMode value, which determines the quality of the result as well as the processing time. This parameter is optional.
Default value: Auto.

keepAspectRatio  Boolean  (Optional)

to keep aspect ratio of the specified source; otherwise, . 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

In .NET Framework 4.0 and above you can use also the ResizeAsync method.

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

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

Reference