BitmapDataExtensionsDrawInto(IReadableBitmapData, IReadWriteBitmapData, Rectangle, IQuantizer, IDitherer, ScalingMode) Method
Draws the
source IReadableBitmapData into the
target IReadWriteBitmapData
using scaling and blending. This method works between any pair of source and target
KnownPixelFormats and supports quantizing and dithering.
To copy a bitmap data into another one without blending use the
CopyTo methods,
or to use custom a function to specify how the source and target pixels should be combined, use the
Combine methods instead.
Namespace: KGySoft.Drawing.ImagingAssembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 10.0.0-rc.1
public static void DrawInto(
this IReadableBitmapData source,
IReadWriteBitmapData target,
Rectangle targetRectangle,
IQuantizer? quantizer = null,
IDitherer? ditherer = null,
ScalingMode scalingMode = ScalingMode.Auto
)
<ExtensionAttribute>
Public Shared Sub DrawInto (
source As IReadableBitmapData,
target As IReadWriteBitmapData,
targetRectangle As Rectangle,
Optional quantizer As IQuantizer = Nothing,
Optional ditherer As IDitherer = Nothing,
Optional scalingMode As ScalingMode = ScalingMode.Auto
)
public:
[ExtensionAttribute]
static void DrawInto(
IReadableBitmapData^ source,
IReadWriteBitmapData^ target,
Rectangle targetRectangle,
IQuantizer^ quantizer = nullptr,
IDitherer^ ditherer = nullptr,
ScalingMode scalingMode = ScalingMode::Auto
)
[<ExtensionAttribute>]
static member DrawInto :
source : IReadableBitmapData *
target : IReadWriteBitmapData *
targetRectangle : Rectangle *
?quantizer : IQuantizer *
?ditherer : IDitherer *
?scalingMode : ScalingMode
(* Defaults:
let _quantizer = defaultArg quantizer null
let _ditherer = defaultArg ditherer null
let _scalingMode = defaultArg scalingMode ScalingMode.Auto
*)
-> unit
- source IReadableBitmapData
- The source IReadableBitmapData to be drawn into the target.
- target IReadWriteBitmapData
- The target IReadWriteBitmapData into which source should be drawn.
- targetRectangle Rectangle
- A Rectangle that specifies the location and size of the drawn source.
- quantizer IQuantizer (Optional)
- An IQuantizer instance to be used for the drawing. If not specified, then the drawing operation might automatically
pick a quantizer based on target PixelFormat. This parameter is optional.
Default value: . - ditherer IDitherer (Optional)
- The ditherer to be used for the drawing. 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: . - scalingMode ScalingMode (Optional)
- Specifies the scaling mode if the bitmap data to be drawn needs to be resized. This parameter is optional.
Default value: Auto.
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
DrawInto(IReadableBitmapData, IReadWriteBitmapData, Rectangle, IQuantizer, IDitherer, ScalingMode, ParallelConfig) overload to configure these, while still executing the method synchronously. Alternatively, use
the
BeginDrawInto(IReadableBitmapData, IReadWriteBitmapData, Rectangle, Rectangle, IQuantizer, IDitherer, ScalingMode, AsyncConfig)
or
DrawIntoAsync(IReadableBitmapData, IReadWriteBitmapData, Rectangle, Rectangle, IQuantizer, IDitherer, ScalingMode, TaskConfig) (in .NET Framework 4.0 and above) methods to perform the operation asynchronously.
The method has the best performance if source and targetRectangle have the same size, or when scalingMode is NoScaling.
The image to be drawn is automatically clipped if targetRectangle exceeds bounds, or scalingMode is NoScaling
and source and targetRectangle have different sizes.
target must be an IReadWriteBitmapData because it must be readable if blending is necessary. For write-only IWritableBitmapData instances
you can use the CopyTo methods (without scaling).
If target can represent a narrower set of colors, then the result will be automatically quantized to the colors of the target,
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 target can represent,
then the result will eventually be quantized to target, though the result may have a poorer quality than expected.
