pub unsafe extern "C" fn pdf_edit_text_field_value(
    ctx: *mut fz_context,
    widget: *mut pdf_annot,
    value: *const c_char,
    change: *const c_char,
    selStart: *mut c_int,
    selEnd: *mut c_int,
    newvalue: *mut *mut c_char
) -> c_int