BitmapDataExtensionsClone(IReadableBitmapData, KnownPixelFormat, IQuantizer, IDitherer) Method
Gets the clone of the specified source with identical size and the specified pixelFormat, using an optional quantizer and ditherer.
Namespace: KGySoft.Drawing.ImagingAssembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 8.2.0
public static IReadWriteBitmapData Clone(
this IReadableBitmapData source,
KnownPixelFormat pixelFormat,
IQuantizer? quantizer,
IDitherer? ditherer = null
)
<ExtensionAttribute>
Public Shared Function Clone (
source As IReadableBitmapData,
pixelFormat As KnownPixelFormat,
quantizer As IQuantizer,
Optional ditherer As IDitherer = Nothing
) As IReadWriteBitmapData
public:
[ExtensionAttribute]
static IReadWriteBitmapData^ Clone(
IReadableBitmapData^ source,
KnownPixelFormat pixelFormat,
IQuantizer^ quantizer,
IDitherer^ ditherer = nullptr
)
[<ExtensionAttribute>]
static member Clone :
source : IReadableBitmapData *
pixelFormat : KnownPixelFormat *
quantizer : IQuantizer *
?ditherer : IDitherer
(* Defaults:
let _ditherer = defaultArg ditherer null
*)
-> IReadWriteBitmapData
- source IReadableBitmapData
- An IReadableBitmapData instance to be cloned.
- pixelFormat KnownPixelFormat
- The desired pixel format of the result.
- quantizer IQuantizer
- An optional IQuantizer instance to determine the colors of the result.
If and pixelFormat is an indexed format, then a default palette and quantization logic will be used.
- ditherer IDitherer (Optional)
- The ditherer to be used. Might be ignored if quantizer is not specified
and pixelFormat represents an at least 24 bits-per-pixel size. This parameter is optional.
Default value: .
IReadWriteBitmapDataAn
IReadWriteBitmapData instance that represents the clone of the specified
source.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).
This method adjusts the degree of parallelization automatically, blocks the caller, and does not support cancellation or reporting progress. You can use
the
Clone(IReadableBitmapData, KnownPixelFormat, IQuantizer, IDitherer, ParallelConfig) overload to configure these, while still executing the method synchronously. Alternatively, use
the
BeginClone(IReadableBitmapData, KnownPixelFormat, IQuantizer, IDitherer, NullableRectangle, AsyncConfig) or
CloneAsync(IReadableBitmapData, KnownPixelFormat, IQuantizer, IDitherer, NullableRectangle, TaskConfig)
(in .NET Framework 4.0 and above) methods to perform the operation asynchronously.
If pixelFormat can represent a narrower set of colors, then the result will be automatically quantized to its color space,
even if there is no quantizer specified. To use dithering a ditherer must be explicitly specified though.
If quantizer is specified but it uses more/different colors than pixelFormat can represent,
then the result will eventually be quantized to pixelFormat, though the result may have a poorer quality than expected.
Color depth can be preserved if quantizer is not specigied and the target format can represent the colors of the source format without losing information.
See the
Examples section of the
ConvertPixelFormat(Image, PixelFormat, IQuantizer?, IDitherer?) extension method
for some examples. The
ConvertPixelFormat extensions work the same way
for
Images
as the
Clone extensions for
IReadableBitmapData instances.
