Function gtk_sys::gtk_text_view_window_to_buffer_coords

pub unsafe extern "C" fn gtk_text_view_window_to_buffer_coords(
    text_view: *mut GtkTextView,
    win: GtkTextWindowType,
    window_x: c_int,
    window_y: c_int,
    buffer_x: *mut c_int,
    buffer_y: *mut c_int
)