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Alpha Class

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

Inheritance Hierarchy

System.Object
  DocumentFormat.OpenXml.OpenXmlElement
    DocumentFormat.OpenXml.OpenXmlLeafElement
      DocumentFormat.OpenXml.Drawing.PositiveFixedPercentageType
        DocumentFormat.OpenXml.Drawing.Alpha

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

Syntax

'Declaration
Public Class Alpha _
    Inherits PositiveFixedPercentageType
'Usage
Dim instance As Alpha
public class Alpha : PositiveFixedPercentageType

Remarks

[ISO/IEC 29500-1 1st Edition]

20.1.2.3.1 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.

Thread Safety

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

See Also

Reference

Alpha Members

DocumentFormat.OpenXml.Drawing Namespace