THotPDF GSUB Script and Language Methods

Domov Vsebina Pregled

THotPDF API reference

THotPDF Methods Auto Shaping GSUB

Izbere in odkrije vnose OpenType GSUB ScriptList, LangSys in FeatureList, ki jih uporabljajo vse poizvedbe 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

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: neznana oznaka skripta povzroči, da poznejše poizvedbe vrnejo rezultate brez učinka. SetGSUBLanguage se vrne na privzeti LangSys skripta, kadar zahtevana oznaka jezika ni na voljo, kar se ujema z običajnim vedenjem OpenType