Function mupdf_sys::pdf_encrypt_data

pub unsafe extern "C" fn pdf_encrypt_data(
    ctx: *mut fz_context, 
    crypt: *mut pdf_crypt, 
    num: c_int, 
    gen: c_int, 
    fmt_str_out: Option<unsafe extern "C" fn(arg1: *mut fz_context, arg2: *mut c_void, arg3: *const c_uchar, arg4: usize)>, 
    arg: *mut c_void, 
    s: *const c_uchar, 
    n: usize
)