Returns the value for a member.
@param msg the message from which to get the value @param member the name of the member variable @param pvalue a pointer to the variable to hold the value @return 0 on success, -1 otherwise.
See Implementation
Returns the value for a member.
@param msg the message from which to get the value @param member the name of the member variable @param pvalue a pointer to the variable to hold the value @return 0 on success, -1 otherwise.