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OID_CO_GET_ADDRESSES

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The OID_CO_GET_ADDRESSES OID is used by the client to make a query to the call manager. This query is made in response to the call manager sending an OID_CO_ADDRESS_CHANGE to the client. In response to this query, the call manager sends the client an address list that is formatted as a CO_ADDRESS_LIST structure, defined as follows:

typedef struct _CO_ADDRESS_LIST {
    ULONG       NumberOfAddressesAvailable;
    ULONG       NumberOfAddresses;
    CO_ADDRESS  AddressList;
} CO_ADDRESS_LIST, *PCO_ADDRESS_LIST;

The members of this structure contain the following information:

NumberOfAddressesAvailable
Specifies the maximum number of addresses in the call manager's list of addresses. Regardless of the actual number of addresses that the call manager returns to the client at AddressList, the size of the buffer at AddressList is always NumberOfAddressesAvailable multiplied by the address size, which is a fixed size specific to the call manager.

NumberOfAddresses
Specifies the number of addresses that the call manager has written to AddressList.

AddressList
The alias address is formatted as a CO_ADDRESS structure, defined as follows:

typedef struct _CO_ADDRESS {
    ULONG   AddressSize;
    UCHAR   Address[1];
} CO_ADDRESS, *PCO_ADDRESS;

The members of this structure contain the following information:

AddressSize
Specifies the size in bytes of the structure at Address .

Address
Specifies a variable-length array that contains the list of addresses. The address format is specific to the signaling protocol used by the call manager.

The AddressList contains network addresses at which the local host can be reached. The AddressList returned to a particular client contains addresses that are common to all clients, as well as any addresses that the client itself has added to call manager's list of addresses with OID_CO_ADD_ADDRESS.

Requirements

Version: Windows Vista and later Header: Ntddndis.h (include Ndis.h)