BitmapDataExtensionsCopyTo(IReadableBitmapData, IWritableBitmapData, Rectangle, Point, IQuantizer, IDitherer) Method

Copies the source IReadableBitmapData into the target IWritableBitmapData 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 DrawInto methods instead.


Namespace: KGySoft.Drawing.Imaging
Assembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 8.1.0
public static void CopyTo(
	this IReadableBitmapData source,
	IWritableBitmapData target,
	Rectangle sourceRectangle,
	Point targetLocation,
	IQuantizer? quantizer = null,
	IDitherer? ditherer = null


source  IReadableBitmapData
The source IReadableBitmapData to be copied into the target.
target  IWritableBitmapData
The target IWritableBitmapData into which source should be copied.
sourceRectangle  Rectangle
A Rectangle that specifies the portion of the source to be copied into the target.
targetLocation  Point
The target location. Target size will be always the same as the source size.
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: .

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).



This method adjusts the degree of parallelization automatically, blocks the caller, and does not support cancellation or reporting progress. Use the BeginCopyTo or CopyToAsync (in .NET Framework 4.0 and above) methods for asynchronous call and to adjust parallelization, set up cancellation and for reporting progress.

The copied area is automatically clipped if its size or targetLocation makes it impossible to completely fit in the target.

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.


ArgumentNullExceptionsource or target is .

See Also