Function mupdf_sys::pdf_set_doc_event_callback

pub unsafe extern "C" fn pdf_set_doc_event_callback(
    ctx: *mut fz_context,
    doc: *mut pdf_document,
    event_cb: pdf_doc_event_cb,
    free_event_data_cb: pdf_free_doc_event_data_cb,
    data: *mut c_void
)