SKBitmapExtensionsGetWritableBitmapData(SKBitmap, SKColor, Byte) Method

public static IWritableBitmapData GetWritableBitmapData(
	this SKBitmap bitmap,
	SKColor backColor = default,
	byte alphaThreshold = 128
)

<ExtensionAttribute>
Public Shared Function GetWritableBitmapData ( 
	bitmap As SKBitmap,
	Optional backColor As SKColor = Nothing,
	Optional alphaThreshold As Byte = 128
) As IWritableBitmapData

public:
[ExtensionAttribute]
static IWritableBitmapData^ GetWritableBitmapData(
	SKBitmap^ bitmap, 
	SKColor backColor = SKColor(), 
	unsigned char alphaThreshold = 128
)

[<ExtensionAttribute>]
static member GetWritableBitmapData : 
        bitmap : SKBitmap * 
        ?backColor : SKColor * 
        ?alphaThreshold : byte 
(* Defaults:
        let _backColor = defaultArg backColor new SKColor()
        let _alphaThreshold = defaultArg alphaThreshold 128
*)
-> IWritableBitmapData 

Parameters

bitmap  SKBitmap

An SKBitmap instance, whose data is about to be accessed.

backColor  SKColor  (Optional)

Determines the BackColor property of the result. When setting pixels of bitmaps without alpha support, specifies the color of the background. Color values with alpha will be blended with this color before setting the pixel in the result bitmap data. The Alpha property of the specified background color is ignored. This parameter is optional.
Default value: The bitwise zero instance of SKColor, which has the same RGB values as Black.

alphaThreshold  Byte  (Optional)

Determines the AlphaThreshold property of the result. As SkiaSharp does not support indexed pixel formats with palette anymore, this parameter is relevant in very rare cases only, such as obtaining a quantizer by the FromBitmapData(IBitmapData) method. This parameter is optional.
Default value: 128.

Return Value

Usage Note

Reference