THotPDF GSUB Script and Language Methods

Početna Sadržaj Pregled

THotPDF API reference

THotPDF Methods Auto Shaping GSUB

Odabire i pronalazi OpenType GSUB ScriptList, LangSys i FeatureList unose koje koriste svi GSUB lookup upiti

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

API	Usage notes
`SetGSUBScript`	Selects the OpenType script tag used by later GSUB feature and lookup queries
`SetGSUBLanguage`	Selects the OpenType language-system tag and falls back to the script default when unavailable
`GetGSUBScripts`	Returns the script tags advertised by the registered Unicode font's GSUB ScriptList
`GetGSUBLanguages`	Returns the language-system tags available for a script tag
`GetGSUBFeatures`	Returns the feature tags reachable for a script and language-system pair

Usage notes

SetGSUBScript je strog: nepoznata script oznaka uzrokuje da kasniji upiti vraćaju no-op rezultate. SetGSUBLanguage vraća se na zadani LangSys skripte kada tražena language oznaka nije dostupna, što odgovara uobičajenom OpenType ponašanju