AlphaOffset Class
Alpha Offset.When the object is serialized out as xml, its qualified name is a:alphaOff.
Inheritance Hierarchy
System.Object
DocumentFormat.OpenXml.OpenXmlElement
DocumentFormat.OpenXml.OpenXmlLeafElement
DocumentFormat.OpenXml.Drawing.AlphaOffset
Namespace: DocumentFormat.OpenXml.Drawing
Assembly: DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)
Syntax
'Declaration
Public Class AlphaOffset _
Inherits OpenXmlLeafElement
'Usage
Dim instance As AlphaOffset
public class AlphaOffset : OpenXmlLeafElement
Remarks
[ISO/IEC 29500-1 1st Edition]
20.1.2.3.3 alphaOff (Alpha Offset)
This element specifies a more or less opaque version of its input color. Increases or decreases the input alpha percentage by the specified percentage offset. A 10% alpha offset increases a 50% opacity to 60%. A -10% alpha offset decreases a 50% opacity to 40%. The transformed alpha values are limited to a range of 0 to 100%. A 10% alpha offset increase to a 100% opaque object still results in 100% opacity.
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 offset increase or decrease relative to the input color. Increases never increase the opacity beyond 100%, decreases never decrease the opacity below 0%. [Example: The following represents a green solid fill which is 90% opaque <a:solidFill> <a:srgbClr val="00FF00"> <a:alphaOff val="-10.000%"/> </a:srgbClr> </a:solidFill> end example] The possible values for this attribute are defined by the ST_FixedPercentage simple type (§20.1.10.24). |
[Note: The W3C XML Schema definition of this element’s content model (CT_FixedPercentage) 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.