fontGetGlyphVKerning

Fetches the kerning-adjustment value for a glyph-pair in the specified font, for vertical text segments.

<note>It handles legacy kerning only (as returned by the corresponding

#hb_font_funcs_t function).</note>

Parameters

font#hb_font_t to work upon
topGlyphThe glyph ID of the top glyph in the glyph pair
bottomGlyphThe glyph ID of the bottom glyph in the glyph pair

Returns

The kerning adjustment value