THotPDF GSUB Script and Language Methods

THotPDF API reference

 

THotPDF Methods  Auto Shaping  GSUB

Seleciona e descobre as entradas OpenType GSUB ScriptList, LangSys e FeatureList usadas por todas as consultas de lookup GSUB

 

Delphi syntax

procedure SetGSUBScript(const ScriptTag: AnsiString);

procedure SetGSUBLanguage(const LangTag: AnsiString);

function GetGSUBScripts: TGSUBStringArray;

function GetGSUBLanguages(const ScriptTag: AnsiString): TGSUBStringArray;

function GetGSUBFeatures(const ScriptTag, LangTag: AnsiString): TGSUBStringArray;

 

Covered APIs

APIUsage notes
SetGSUBScriptSelects the OpenType script tag used by later GSUB feature and lookup queries
SetGSUBLanguageSelects the OpenType language-system tag and falls back to the script default when unavailable
GetGSUBScriptsReturns the script tags advertised by the registered Unicode font's GSUB ScriptList
GetGSUBLanguagesReturns the language-system tags available for a script tag
GetGSUBFeaturesReturns the feature tags reachable for a script and language-system pair

 

Usage notes

SetGSUBScript é estrito: uma tag de script desconhecida faz com que as consultas posteriores devolvam resultados no-op. SetGSUBLanguage recua para o LangSys predefinido do script quando a tag de idioma pedida não está disponível, correspondendo ao comportamento comum do OpenType

 

See also: OpenType GSUB Engine GSUB lookup methods ShapingFeatures