Function qpdf_sys::qpdf_set_r6_encryption_parameters

pub unsafe extern "C" fn qpdf_set_r6_encryption_parameters(
    qpdf: qpdf_data,
    user_password: *const c_char,
    owner_password: *const c_char,
    allow_accessibility: QPDF_BOOL,
    allow_extract: QPDF_BOOL,
    print: qpdf_r3_print_e,
    modify: qpdf_r3_modify_e,
    encrypt_metadata: QPDF_BOOL
)