Function xcb_sys::xcb_query_text_extents

pub unsafe extern "C" fn xcb_query_text_extents(
    c: *mut xcb_connection_t, 
    font: xcb_fontable_t, 
    string_len: u32, 
    string: *const xcb_char2b_t
) -> xcb_query_text_extents_cookie_t