BitmapDataExtensionsClone(IReadableBitmapData, KnownPixelFormat, Color32, Byte, ParallelConfig) Method

Gets the clone of the specified source with identical size and the specified pixelFormat and color settings.

Definition

Namespace: KGySoft.Drawing.Imaging
Assembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 9.0.0
C#
public static IReadWriteBitmapData? Clone(
	this IReadableBitmapData source,
	KnownPixelFormat pixelFormat,
	Color32 backColor,
	byte alphaThreshold,
	ParallelConfig? parallelConfig
)

Parameters

source  IReadableBitmapData
An IReadableBitmapData instance to be cloned.
pixelFormat  KnownPixelFormat
The desired pixel format of the result.
backColor  Color32
If pixelFormat does not support alpha or supports only single-bit alpha, then specifies the color of the background. Source pixels with alpha, which will be opaque in the result will be blended with this color. The Color32.A property of the background color is ignored.
alphaThreshold  Byte
If pixelFormat can represent only single-bit alpha or pixelFormat is an indexed format and the target palette contains a transparent color, then specifies a threshold value for the Color32.A property, under which the color is considered transparent. If 0, then the result will not have transparent pixels.
parallelConfig  ParallelConfig
The configuration of the 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. If , then the degree of parallelization is configured automatically.

Return Value

IReadWriteBitmapData
An IReadWriteBitmapData instance that represents the clone of the specified source, or , if the operation was canceled and the ThrowIfCanceled property of the parallelConfig parameter was .

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IReadableBitmapData. 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).

Remarks

This overload automatically quantizes colors if pixelFormat represents a narrower set of colors than source PixelFormat. To use a custom quantizer use the overloads with an IQuantizer parameter.

Color depth can be preserved if the target format can represent the colors of the source format without losing information.

If pixelFormat represents an indexed format, then the target palette is taken from source if it also has a palette of no more entries than the target indexed format can have; otherwise, a default palette will be used based on pixelFormat. To specify the desired palette of the result use the Clone(IReadableBitmapData, KnownPixelFormat, Palette, ParallelConfig) overload.

Exceptions

ArgumentNullExceptionsource is .
ArgumentOutOfRangeExceptionpixelFormat does not specify a valid format.

See Also