AlphaBiLevel class

Office 2013 and later

Defines the AlphaBiLevel Class. When the object is serialized out as xml, its qualified name is a:alphaBiLevel.

Namespace:  DocumentFormat.OpenXml.Drawing
Assembly:  DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)

public class AlphaBiLevel : OpenXmlLeafElement

[ISO/IEC 29500-1 1st Edition]

alphaBiLevel (Alpha Bi-Level Effect)

This element represents an Alpha Bi-Level Effect.

Alpha (Opacity) values less than the threshold are changed to 0 (fully transparent) and alpha values greater than or equal to the threshold are changed to 100% (fully opaque).

Parent Elements

blip (§; cont (§; effectDag (§



thresh (Threshold)

Specifies the threshold value for the alpha bi-level effect.

The possible values for this attribute are defined by the ST_PositiveFixedPercentage simple type (§

[Note: The W3C XML Schema definition of this element’s content model (CT_AlphaBiLevelEffect) is located in §A.4.1. end note]

© ISO/IEC29500: 2008.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.