Function gtk4_sys::gtk_text_compute_cursor_extents

pub unsafe extern "C" fn gtk_text_compute_cursor_extents(
    self_: *mut GtkText, 
    position: size_t, 
    strong: *mut graphene_rect_t, 
    weak: *mut graphene_rect_t
)

This is supported on crate feature v4_4 only.