Cannot make ToBinary Method fill buffer value

[MilosR]

Cannot make buffer filled, it is filled with "CD". There is no error returned from ToBinary. Everything passes without error. Other types (StringType, UnicodeStringType...) works without problem.

//...
if (type == BinaryType) {
    size_t size;
    sAIEntry->AddRef(entry);
    sAIEntry->ToBinary(entry, NULL, &size);
    void * buffer = malloc(size);
    error = sAIEntry->ToBinary(entry, buffer, NULL);
    if (!error) {
       for (int i = 0; i < size; i++) {
           printf("%02x ", ((unsigned char *)buffer));
       }
    }
}

[LeoTaro · Accepted solution]

Have you tried:

error = sAIEntry->ToBinary(entry, buffer, &size);

Not clear from the doc if last argument can be NULL.

[MilosR]

You are right, it now works. Indeed, there is no NULL mentioned for this argument in documentation, it was just my assumption. Thank You.