Indices Property
Gets or sets the glyph indices that represent the Glyphs object.
| XAML |
<object Indices="string" .../>
|
| Scripting |
value = object.Indices object.Indices = value |
Property Value
string
A value that defines glyph indices as well as other glyph specifics in a string mini-language.
This property is read/write. The default value is null.
Indices Grammar
The format for glyph indices is complex and is not documented completely here. The following is an approximate grammar of one index point:
[GlyphIndex][,[Advance][,[uOffset][,[vOffset]]]]
Each such index point is then separated in the string by a semicolon (;).
| Term | Underlying type | Definition |
|---|---|---|
| GlyphIndex | integer | Index of a glyph in the font. |
| Advance | double | Placement for next glyph relative to origin of this glyph. |
| uOffset, vOffset | double | Offset relative to glyph origin to move this glyph. Usually used to attach marks to base characters. |
Remarks
The most relevant purpose for the Indices property in Silverlight is to use it for spacing the characters within the specified Unicode string, rather than for full specification of each glyph. In this case you would always use the Unicode string for the true indices and leave GlyphIndex blank in each index point. For example, to apply an advance spacing of 80 for each character in the Unicode string "Hello", the Indices value would be ",80;,80;,80;,80;,80;".
For more information see this document in the Windows Presentation Foundation (WPF) area of the .NET SDK: Introduction to the GlyphRun Object and Glyphs Element. This document discusses glyphs within the WPF framework, but the description of the indices format is applicable to glyphs in Silverlight.