SKBitmapExtensionsGetWritableBitmapData(SKBitmap, SKColor, Byte) Method
Namespace: KGySoft.Drawing.SkiaSharpAssembly: KGySoft.Drawing.SkiaSharp (in KGySoft.Drawing.SkiaSharp.dll) Version: 9.0.0
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
- 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.
IWritableBitmapDataAn
IWritableBitmapData instance, which provides fast write-only access to the actual data of the specified
bitmap.In Visual Basic and C#, you can call this method as an instance method on any object of type
SKBitmap. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).