BitmapDataExtensionsClone(IReadableBitmapData, KnownPixelFormat, Color32, Byte) Method
Gets the clone of the specified source with identical size and the specified pixelFormat and color settings.
Namespace: KGySoft.Drawing.ImagingAssembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 9.0.0
public static IReadWriteBitmapData Clone(
this IReadableBitmapData source,
KnownPixelFormat pixelFormat,
Color32 backColor = default,
byte alphaThreshold = 128
)
<ExtensionAttribute>
Public Shared Function Clone (
source As IReadableBitmapData,
pixelFormat As KnownPixelFormat,
Optional backColor As Color32 = Nothing,
Optional alphaThreshold As Byte = 128
) As IReadWriteBitmapData
public:
[ExtensionAttribute]
static IReadWriteBitmapData^ Clone(
IReadableBitmapData^ source,
KnownPixelFormat pixelFormat,
Color32 backColor = Color32(),
unsigned char alphaThreshold = 128
)
[<ExtensionAttribute>]
static member Clone :
source : IReadableBitmapData *
pixelFormat : KnownPixelFormat *
?backColor : Color32 *
?alphaThreshold : byte
(* Defaults:
let _backColor = defaultArg backColor new Color32()
let _alphaThreshold = defaultArg alphaThreshold 128
*)
-> IReadWriteBitmapData
- source IReadableBitmapData
- An IReadableBitmapData instance to be cloned.
- pixelFormat KnownPixelFormat
- The desired pixel format of the result.
- backColor Color32 (Optional)
- 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. This parameter is optional.
Default value: The default value of the Color32 type, which has the same RGB values as Black. - alphaThreshold Byte (Optional)
- 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. This parameter is optional.
Default value: 128.
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, Color32, Byte, ParallelConfig) overload to configure these, while still executing the method synchronously. Alternatively, use
the
BeginClone(IReadableBitmapData, KnownPixelFormat, Color32, Byte, NullableRectangle, AsyncConfig) or
CloneAsync(IReadableBitmapData, KnownPixelFormat, Color32, Byte, NullableRectangle, TaskConfig)
(in .NET Framework 4.0 and above) methods to perform the operation asynchronously.
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) overload.
See the
Examples section of the
ConvertPixelFormat(Image, PixelFormat, Color, byte) extension method
for some examples. The
ConvertPixelFormat extensions work the same way
for
Images
as the
Clone extensions for
IReadableBitmapData instances.