BitmapDataExtensionsCopyToAsync Method
Copies the
source IReadableBitmapData into the
target IWritableBitmapData asynchronously,
without scaling and blending. This method works between any pair of source and target
KnownPixelFormats and supports quantizing and dithering.
To draw a bitmap data into another one with blending use the
DrawIntoAsync methods,
or to use custom a function to specify how the source and target pixels should be combined, use the
CombineAsync methods instead.
Namespace: KGySoft.Drawing.ImagingAssembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 10.0.0-rc.1
public static Task<bool> CopyToAsync(
this IReadableBitmapData source,
IWritableBitmapData target,
Rectangle? sourceRectangle = null,
Point? targetLocation = null,
IQuantizer? quantizer = null,
IDitherer? ditherer = null,
TaskConfig? asyncConfig = null
)
<ExtensionAttribute>
Public Shared Function CopyToAsync (
source As IReadableBitmapData,
target As IWritableBitmapData,
Optional sourceRectangle As Rectangle? = Nothing,
Optional targetLocation As Point? = Nothing,
Optional quantizer As IQuantizer = Nothing,
Optional ditherer As IDitherer = Nothing,
Optional asyncConfig As TaskConfig = Nothing
) As Task(Of Boolean)
public:
[ExtensionAttribute]
static Task<bool>^ CopyToAsync(
IReadableBitmapData^ source,
IWritableBitmapData^ target,
Nullable<Rectangle> sourceRectangle = nullptr,
Nullable<Point> targetLocation = nullptr,
IQuantizer^ quantizer = nullptr,
IDitherer^ ditherer = nullptr,
TaskConfig^ asyncConfig = nullptr
)
[<ExtensionAttribute>]
static member CopyToAsync :
source : IReadableBitmapData *
target : IWritableBitmapData *
?sourceRectangle : Nullable<Rectangle> *
?targetLocation : Nullable<Point> *
?quantizer : IQuantizer *
?ditherer : IDitherer *
?asyncConfig : TaskConfig
(* Defaults:
let _sourceRectangle = defaultArg sourceRectangle null
let _targetLocation = defaultArg targetLocation null
let _quantizer = defaultArg quantizer null
let _ditherer = defaultArg ditherer null
let _asyncConfig = defaultArg asyncConfig null
*)
-> Task<bool>
- source IReadableBitmapData
- The source IReadableBitmapData to be copied into the target.
- target IWritableBitmapData
- The target IWritableBitmapData into which source should be copied.
- sourceRectangle NullableRectangle (Optional)
- A Rectangle that specifies the portion of the source to be copied, or to copy the entire source. This parameter is optional.
Default value: . - targetLocation NullablePoint (Optional)
- A Point that specifies the target location, or to copy the source to the top-left corner of the target. Target size will be always the same as the source size. This parameter is optional.
Default value: . - quantizer IQuantizer (Optional)
- An IQuantizer instance to be used. If not specified, then the copying operation might automatically
pick a quantizer based on target PixelFormat. This parameter is optional.
Default value: . - ditherer IDitherer (Optional)
- The ditherer to be used. Might be ignored if quantizer is not specified
and target PixelFormat format has at least 24 bits-per-pixel size. This parameter is optional.
Default value: . - asyncConfig TaskConfig (Optional)
- The configuration of the asynchronous 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. This parameter is optional.
Default value: .
TaskBooleanA task that represents the asynchronous operation. Its result is
, if the operation completed successfully,
or
, if the operation has been canceled and the
ThrowIfCanceled property in
asyncConfig parameter was
.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 is not a blocking call even if the MaxDegreeOfParallelism property of the asyncConfig parameter is 1.