Alpha Class

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

Inheritance Hierarchy

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

'宣言
Public Class Alpha _
    Inherits PositiveFixedPercentageType
'使用
Dim instance As Alpha

public class Alpha : PositiveFixedPercentageType

[ISO/IEC 29500-1 初版]

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).

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]

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