ExtensionSubstFormat1

class final readonly Optional · pdftoolkit/opentype 0.1.0

PDFToolkit\OpenType\Substitution\ExtensionSubstFormat1

This component belongs to pdftoolkit/opentype, a module installed separately from the core. Module guide. Package API.

Inheritance and contracts

Interfaces : PDFToolkit\OpenType\Substitution\SubstitutionSubtable

public function __construct(int $extensionLookupType, PDFToolkit\OpenType\Substitution\SubstitutionSubtable $extension)

public function isSupported(): bool

public function lookupType(): int

Declaration	Origin and documentation
`public readonly PDFToolkit\OpenType\Substitution\SubstitutionSubtable $extension`	PDFToolkit\OpenType\Substitution\ExtensionSubstFormat1
`public readonly int $extensionLookupType`	PDFToolkit\OpenType\Substitution\ExtensionSubstFormat1