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OpacityEffect Class
[Win10_14393] Changes the opacity (alpha) of an image.
Inheritance Hierarchy
SystemObject
  Microsoft.Graphics.Canvas.EffectsOpacityEffect

Namespace:  Microsoft.Graphics.Canvas.Effects
Assembly:  Microsoft.Graphics.Canvas (in Microsoft.Graphics.Canvas.dll) Version: 0.0.0.0
Syntax
C#
public sealed class OpacityEffect : ICanvasEffect, 
	IGraphicsEffect, IGraphicsEffectSource, ICanvasImage, IDisposable

The OpacityEffect type exposes the following members.

Constructors
  NameDescription
Public methodOpacityEffect
[Win10_14393] Initializes a new instance of the OpacityEffect class.
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Properties
  NameDescription
Public propertyBufferPrecision
[Win10_14393] Specifies what precision to use for intermediate buffers when drawing this effect.
Public propertyCacheOutput
[Win10_14393] Enables caching the output from drawing this effect.
Public propertyStatic memberIsSupported
[Win10] Checks whether OpacityEffect is supported on the current operating system version.
Public propertyName
[Win10_14393] Attaches a user-defined name string to the effect.
Public propertyOpacity
[Win10_14393] Adjusts the opacity of the output image. Default value 1, range 0 to 1.
Public propertySource
[Win10_14393] Gets or sets the input source for Opacity effect.
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Methods
  NameDescription
Public methodDispose
[Win10_14393] Releases all resources used by the effect.
Public methodGetBounds(ICanvasResourceCreator)
[Win10_14393] Retrieves the bounds of this OpacityEffect.
Public methodGetBounds(ICanvasResourceCreator, Matrix3x2)
[Win10_14393] Retrieves the bounds of this OpacityEffect.
Public methodGetInvalidRectangles
[Win10_14393] Queries what regions of the effect output have changed since it was last drawn.
Public methodCode exampleGetRequiredSourceRectangle
[Win10_14393] Queries what part of an effect source image is needed to draw an output region.
Public methodGetRequiredSourceRectangles
[Win10_14393] Queries what parts of the effect source images are needed to draw an output region.
Public methodInvalidateSourceRectangle
[Win10_14393] Notifies the effect that one of its source images has changed.
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Remarks

This API is only available when running on Windows 10 build 14393 (Anniversary Update) or greater.

This Windows Runtime type corresponds to the D2D Opacity effect.

See Also