Retrieves the current value into a binary buffer, casting as required If the buffer is too small, then the value is truncated.
void ULValue::GetBinary( ul_byte * dst, size_t len, size_t * retr_len )
dst The buffer to receive bytes.
len The length of the buffer.
retr_len An output parameter. The actual number of bytes returned.
Up to len bytes are copied to the given buffer. The number of bytes actually copied is returned in retr_len.
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