void silc_client_get_clients_by_channel(SilcClient client,
                                            SilcClientConnection conn,
                                            SilcChannelEntry channel,
                                            SilcGetClientCallback completion,
                                            void *context);

    Gets client entries by the channel indicated by `channel'. Thus,
    it resovles the users currently on that channel. If all users are
    already resolved this returns the users from the channel. If the
    users are resolved only partially this resolves the complete user
    information. If no users are resolved on this channel at all, this
    calls USERS command to resolve all users on the channel. The `completion'
    will be called after the entries are available. When server returns
    the client information it will be cached and can be accessed locally
    at a later time.

    This function can be used for example in SILC_COMMAND_JOIN command
    reply handling in application to resolve users on that channel.  It
    also can be used after calling silc_client_get_channel_resolve to
    resolve users on that channel.

    The resolving is done with WHOIS command. For this reason this
    command may take a long time because it resolves detailed user
    information.