Returns buffer glyph position array. Returned pointer
is valid as long as buffer contents are not modified.
If buffer did not have positions before, the positions will be
initialized to zeros, unless this function is called from
within a buffer message callback (see hb_buffer_set_message_func()),
in which case NULL is returned.
Returns
bufferglyph position array. Returned pointer is valid as long asbuffercontents are not modified.If buffer did not have positions before, the positions will be initialized to zeros, unless this function is called from within a buffer message callback (see
hb_buffer_set_message_func()), in which caseNULLis returned.