:right-sidebar: True

aat_layout_feature_selector_t
===================================================================

.. currentmodule:: gi.repository.HarfBuzz


.. versionadded:: 2.2.0




.. class:: aat_layout_feature_selector_t
   :no-contents-entry:






The selectors defined for specifying AAT feature settings.













Fields
------

.. rst-class:: interim-class

.. class:: aat_layout_feature_selector_t
   :no-index:
   

   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN

      Deprecated; use ``HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON`` instead







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_CJK_ROMAN

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_LOWER_CASE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_UPPER_CASE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_CJK_ROMAN

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_CJK_ROMAN

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVALID

      Initial, unset feature selector







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_PETITE_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_SMALL_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN

      Deprecated; use ``HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF`` instead







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA

      Deprecated; use ``HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF`` instead







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_CJK_ROMAN

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA

      Deprecated; use ``HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON`` instead







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE

      Deprecated







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_PETITE_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_SMALL_CAPS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``







   .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON

      For ``HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE``