Alpha class

Office 2013 and later

Alpha. When the object is serialized out as xml, its qualified name is a:alpha.

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

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[ISO/IEC 29500-1 1st Edition]

alpha (Alpha)

This element specifies its input color with the specific opacity, but with its color unchanged.

Parent Elements

hslClr (§20.1.2.3.13); prstClr (§20.1.2.3.22); schemeClr (§20.1.2.3.29); scrgbClr (§20.1.2.3.30); srgbClr (§20.1.2.3.32); sysClr (§20.1.2.3.33)

Attributes

Description

val (Value)

Specifies the opacity as expressed by a percentage value.

[Example: The following represents a green solid fill which is 50% opaque

<a:solidFill>
  <a:srgbClr val="00FF00">
    <a:alpha val="50.000%"/>
  </a:srgbClr>
</a:solidFill>

end example]

The possible values for this attribute are defined by the ST_PositiveFixedPercentage simple type (§20.1.10.45).

[Note: The W3C XML Schema definition of this element’s content model (CT_PositiveFixedPercentage) 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.
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