hb_font_get_glyph_kerning_func_t
alias hb_font_get_glyph_kerning_func_t = 
hb_position_t function(hb_font_t* font, void* fontData, hb_codepoint_t firstGlyph, hb_codepoint_t secondGlyph, void* userData)  
		harfbuzz c types 
		aliasesenumsmanifest constantsstructs 
	 
	
This method should retrieve the kerning-adjustment value for a glyph-pair in the specified font, for horizontal text segments.