FontFunctions Class
Definition
Important
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Represents a collection of callback functions used by HarfBuzz for font operations such as retrieving glyph metrics, advances, and extents.
public class FontFunctions : HarfBuzzSharp.NativeObject- Inheritance
Constructors
| Name | Description |
|---|---|
| FontFunctions() |
Initializes a new instance of the FontFunctions class with no callbacks set. |
Properties
| Name | Description |
|---|---|
| Empty |
Gets a reference to the empty FontFunctions instance with no callbacks set. |
| Handle |
Gets or sets the handle to the underlying native object. (Inherited from NativeObject) |
| IsImmutable |
Gets a value indicating whether this font functions instance is immutable. |
Methods
| Name | Description |
|---|---|
| Dispose() |
Releases all resources used by this NativeObject. (Inherited from NativeObject) |
| Dispose(Boolean) |
Releases the unmanaged resources used by the FontFunctions and optionally releases the managed resources. |
| DisposeHandler() |
Releases the unmanaged resources used. |
| MakeImmutable() |
Makes this font functions instance immutable, preventing further modifications. |
| SetGlyphContourPointDelegate(GlyphContourPointDelegate, ReleaseDelegate) |
Sets the callback for retrieving glyph contour point coordinates. |
| SetGlyphExtentsDelegate(GlyphExtentsDelegate, ReleaseDelegate) |
Sets the callback for retrieving glyph extents (bounding box). |
| SetGlyphFromNameDelegate(GlyphFromNameDelegate, ReleaseDelegate) |
Sets the callback for retrieving a glyph identifier from a glyph name. |
| SetGlyphNameDelegate(GlyphNameDelegate, ReleaseDelegate) |
Sets the callback for retrieving the name of a glyph. |
| SetHorizontalFontExtentsDelegate(FontExtentsDelegate, ReleaseDelegate) |
Sets the callback for retrieving font extents for horizontal text layout. |
| SetHorizontalGlyphAdvanceDelegate(GlyphAdvanceDelegate, ReleaseDelegate) |
Sets the callback for retrieving horizontal advance width for a single glyph. |
| SetHorizontalGlyphAdvancesDelegate(GlyphAdvancesDelegate, ReleaseDelegate) |
Sets the callback for retrieving horizontal advance widths for multiple glyphs. |
| SetHorizontalGlyphKerningDelegate(GlyphKerningDelegate, ReleaseDelegate) |
Sets the callback for retrieving horizontal kerning adjustment between two glyphs. |
| SetHorizontalGlyphOriginDelegate(GlyphOriginDelegate, ReleaseDelegate) |
Sets the callback for retrieving the origin point for horizontal glyph layout. |
| SetNominalGlyphDelegate(NominalGlyphDelegate, ReleaseDelegate) |
Sets the callback for mapping a Unicode code point to its nominal glyph identifier. |
| SetNominalGlyphsDelegate(NominalGlyphsDelegate, ReleaseDelegate) |
Sets the callback for mapping multiple Unicode code points to their nominal glyph identifiers. |
| SetVariationGlyphDelegate(VariationGlyphDelegate, ReleaseDelegate) |
Sets the callback for retrieving the glyph identifier for a Unicode code point with a variation selector. |
| SetVerticalFontExtentsDelegate(FontExtentsDelegate, ReleaseDelegate) |
Sets the callback for retrieving font extents for vertical text layout. |
| SetVerticalGlyphAdvanceDelegate(GlyphAdvanceDelegate, ReleaseDelegate) |
Sets the callback for retrieving vertical advance height for a single glyph. |
| SetVerticalGlyphAdvancesDelegate(GlyphAdvancesDelegate, ReleaseDelegate) |
Sets the callback for retrieving vertical advance heights for multiple glyphs. |
| SetVerticalGlyphOriginDelegate(GlyphOriginDelegate, ReleaseDelegate) |
Sets the callback for retrieving the origin point for vertical glyph layout. |
