| Interface | Description | 
|---|---|
| MultipleMaster | The  MultipleMasterinterface represents Type 1
 Multiple Master fonts. | 
| OpenType | The  OpenTypeinterface represents OpenType and
 TrueType fonts. | 
| Class | Description | 
|---|---|
| FontRenderContext | The  FontRenderContextclass is a container for the
   information needed to correctly measure text. | 
| GlyphJustificationInfo | The  GlyphJustificationInfoclass represents information
 about the justification properties of a glyph. | 
| GlyphMetrics | The  GlyphMetricsclass represents information for a
 single glyph. | 
| GlyphVector | A  GlyphVectorobject is a collection of glyphs
 containing geometric information for the placement of each glyph
 in a transformed coordinate space which corresponds to the
 device on which theGlyphVectoris ultimately
 displayed. | 
| GraphicAttribute | This class is used with the CHAR_REPLACEMENT attribute. | 
| ImageGraphicAttribute | The  ImageGraphicAttributeclass is an implementation ofGraphicAttributewhich draws images in
 aTextLayout. | 
| LayoutPath | LayoutPath provides a mapping between locations relative to the
 baseline and points in user space. | 
| LineBreakMeasurer | The  LineBreakMeasurerclass allows styled text to be
 broken into lines (or segments) that fit within a particular visual
 advance. | 
| LineMetrics | The  LineMetricsclass allows access to the
 metrics needed to layout characters along a line
 and to layout of a set of lines. | 
| NumericShaper | The  NumericShaperclass is used to convert Latin-1 (European)
 digits to other Unicode decimal digits. | 
| ShapeGraphicAttribute | The  ShapeGraphicAttributeclass is an implementation ofGraphicAttributethat draws shapes in aTextLayout. | 
| TextAttribute | The  TextAttributeclass defines attribute keys and
 attribute values used for text rendering. | 
| TextHitInfo | The  TextHitInfoclass represents a character position in a
 text model, and a bias, or "side," of the character. | 
| TextLayout | TextLayoutis an immutable graphical representation of styled
 character data. | 
| TextLayout.CaretPolicy | Defines a policy for determining the strong caret location. | 
| TextMeasurer | The  TextMeasurerclass provides the primitive operations
 needed for line break: measuring up to a given advance, determining the
 advance of a range of characters, and generating aTextLayoutfor a range of characters. | 
| TransformAttribute | The  TransformAttributeclass provides an immutable
 wrapper for a transform so that it is safe to use as an attribute. | 
| Enum | Description | 
|---|---|
| NumericShaper.Range | A  NumericShaper.Rangerepresents a Unicode range of a
 script having its own decimal digits. | 
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