BitmapDataExtensionsFillRectangle(IReadWriteBitmapData, Color32, Rectangle, DrawingOptions) Method

Fills a rectangle with the specified color.

Definition

Namespace: KGySoft.Drawing.Shapes
Assembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 9.1.1

C#

public static void FillRectangle(
	this IReadWriteBitmapData bitmapData,
	Color32 color,
	Rectangle rectangle,
	DrawingOptions? drawingOptions = null
)

VB

<ExtensionAttribute>
Public Shared Sub FillRectangle ( 
	bitmapData As IReadWriteBitmapData,
	color As Color32,
	rectangle As Rectangle,
	Optional drawingOptions As DrawingOptions = Nothing
)

C++

public:
[ExtensionAttribute]
static void FillRectangle(
	IReadWriteBitmapData^ bitmapData, 
	Color32 color, 
	Rectangle rectangle, 
	DrawingOptions^ drawingOptions = nullptr
)

F#

[<ExtensionAttribute>]
static member FillRectangle : 
        bitmapData : IReadWriteBitmapData * 
        color : Color32 * 
        rectangle : Rectangle * 
        ?drawingOptions : DrawingOptions 
(* Defaults:
        let _drawingOptions = defaultArg drawingOptions null
*)
-> unit

Parameters

bitmapData IReadWriteBitmapData: The IReadWriteBitmapData instance to draw on.
color Color32: The color of the rectangle to fill.
rectangle Rectangle: The rectangle to fill.
drawingOptions DrawingOptions (Optional): A DrawingOptions instance that specifies the drawing options to use. If , then the default options are used. 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 IReadWriteBitmapData. 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).

Remarks

When filling a rectangle, the right/bottom values of the coordinates are exclusive, so if the width or height is zero, then nothing is drawn.

This method tries to use a shortcut to fill the rectangle directly, which is faster than creating a Path and adding the rectangle to it. A shortcut is possible when drawingOptions is and the specified color is opaque, or when drawingOptions specifies that no anti-aliasing and no alpha blending is required, the transformation is the identity matrix, and neither Quantizer nor Ditherer is specified.

When no shortcut can be used and the same rectangle is filled repeatedly, creating a Path with PreferCaching enabled can provide a better performance.

Note

This method adjusts the degree of parallelization automatically, blocks the caller, and does not support cancellation or reporting progress. You can use the overloads that have a ParallelConfig parameter to configure these, while still executing the method synchronously. Alternatively, use the BeginFillRectangle or FillRectangleAsync (in .NET Framework 4.0 and above) methods to perform the operation asynchronously.

Exceptions

ArgumentNullException	bitmapData is .
OverflowException	The coordinates (after a possible transformation specified in drawingOptions) are outside the bounds of an int value.