Function cairo_sys::cairo_scaled_font_text_to_glyphs

pub unsafe extern fn cairo_scaled_font_text_to_glyphs(scaled_font: *mut cairo_scaled_font_t,
                                                      x: c_double,
                                                      y: c_double,
                                                      utf8: *mut c_char,
                                                      utf8_len: c_int,
                                                      glyphs: *mut *mut Glyph,
                                                      num_glyphs: *mut c_int,
                                                      clusters: *mut *mut TextCluster,
                                                      num_clusters: *mut c_int,
                                                      cluster_flags: *mut TextClusterFlags)
                                                      -> Status