Returns the current value of several member attributes in a single function invocation.

DWORD cnfGetMemberAttributeList (
CNFRESOURCEHD cnfresourcehd,
DWORD memberid,
DWORD *attributes,
INT32 *values,
unsigned count)

cnfresourcehd Handle returned by cnfOpenResource.

memberid Member identifier returned by cnfJoinConference or cnfGetMemberList.

attributes Pointer on the array of attributes to be retrieved.

values Pointer on the returned attribute value array.

count Number of entries in attributes and values array.

• SUCCESS
• CTAERR_BAD_ARGUMENT
  attributes or values is NULL.
• CNFERR_INVALID_ATTRIBUTE
  One or more attributes in the array attributes are not valid attributes for a member.
• CTAERR_INVALID_HANDLE
  cnfresourcehd is not a valid conferencing resource handle.
• CNFERR_INVALID_IDENTIFIER
  memberid is not a valid member identifier.

To obtain the current values of several attributes, this function can be used to pass an array of attributes instead of calling cnfGetMemberAttribute several times to obtain each attribute value separately.

See cnfGetMemberAttribute and Section 4.8 for further details about member attributes.

cnfGetMemberAttribute

extern CNFRESOURCEHD cnfresourcehd;

typedef struct {
   INT32 enable;
   INT32 gain;
   INT32 predelay;
   } EC_CONTEXT;

DWORD getMemberECData(DWORD memberid, EC_CONTEXT *ec_context)
{
DWORD attributeList[3] = {
 MEMBER_ATTR_EC_ENABLE,
 MEMBER_ATTR_EC_GAIN,
 MEMBER_ATTR_EC_PREDELAY,
 };

INT32  values[3];
DWORD error;

error = cnfGetMemberAttributeList( cnfresourcehd, memberid,
          attributeList, values, 3); 

ec_context->enable = values[0];
ec_context->gain = values[1];
ec_context->predelay = values[2];
return(error);
}