Class TtfOs2Table

Parsed OpenType "OS/2" table (OS/2 and Windows metrics). Contains typographic metrics and embedding license flags used by both DRIT.Document (text layout) and DRIT.Pdf (font embedding). Ref: OpenType spec §5.7.

Inheritance
object
TtfTableBase
TtfOs2Table
Inherited Members
Namespace: DRIT.Drawing.Font.Ttf.Tables
Assembly: DRIT.Drawing.dll
Syntax
public sealed class TtfOs2Table : TtfTableBase

Fields

TableTag

The table tag for the OS/2 table.

Declaration
public const string TableTag = "OS/2"
Field Value
Type Description
string

Properties

CodePageRange1

Code-page coverage bitmask 1 (version ≥ 1 only; null for v0).

Declaration
public int? CodePageRange1 { get; }
Property Value
Type Description
int?

CodePageRange2

Code-page coverage bitmask 2 (version ≥ 1 only; null for v0).

Declaration
public int? CodePageRange2 { get; }
Property Value
Type Description
int?

FsType

Embedding licensing flags (raw fsType value from the table). Use GetLicenseFlags() for interpreted per-bit access.

Declaration
public ushort FsType { get; }
Property Value
Type Description
ushort

StrikeoutPosition

Distance from baseline to top of strikeout stroke, in design units (from OS/2 yStrikeoutPosition). Positive values are above the baseline.

Declaration
public short StrikeoutPosition { get; }
Property Value
Type Description
short

StrikeoutSize

Strikeout stroke thickness, in design units (from OS/2 yStrikeoutSize).

Declaration
public short StrikeoutSize { get; }
Property Value
Type Description
short

TypoAscender

Typographic ascender above baseline, in design units.

Declaration
public short TypoAscender { get; }
Property Value
Type Description
short

TypoDescender

Typographic descender below baseline (negative), in design units.

Declaration
public short TypoDescender { get; }
Property Value
Type Description
short

TypoLineGap

Typographic line gap, in design units.

Declaration
public short TypoLineGap { get; }
Property Value
Type Description
short

WinAscent

Windows-compatible ascender, in design units.

Declaration
public ushort WinAscent { get; }
Property Value
Type Description
ushort

WinDescent

Windows-compatible descender (positive), in design units.

Declaration
public ushort WinDescent { get; }
Property Value
Type Description
ushort

Methods

GetLicenseFlags()

Returns a LicenseFlags instance that exposes per-bit embedding restriction properties derived from FsType.

Declaration
public LicenseFlags GetLicenseFlags()
Returns
Type Description
LicenseFlags

Parse(byte[])

Parses the "OS/2" table from its raw bytes.

Declaration
public static TtfOs2Table Parse(byte[] rawBytes)
Parameters
Type Name Description
byte[] rawBytes
Returns
Type Description
TtfOs2Table