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Vivox Core SDK

Message types

How to identify and handle different message types.
Read time 1 minuteLast updated 20 hours ago
Games need a message handler to process Vivox event and response messages. To determine the message type, check the 
vx_message_base_t.type
field.
  • If the type is 
    msg_response
    , then the message is of the type 
    x_resp_base_t
    , and you can cast the pointer directly to 
    vx_resp_base_t
    .
  • If the type is 
    msg_event
    , then the message is of the type 
    vx_evt_base_t
    , and you can cast the pointer directly to 
    vx_evt_base_t
    .
The following code displays an example of these message types: 
void MyGamesMessageHandler (vx_message_base_t *msg){    if (msg->type == msg_response)    {        // Call your response handler here        vx_resp_base_t *resp = reinterpret_cast<vx_resp_base_t *>(msg);        MyGamesResponseHandler(resp); // implementation below    }    else if(msg->type == msg_event)    {        vx_evt_base_t *evt = reinterpret_cast<vx_evt_base_t *>(msg);        MyGamesEventHandler(evt); // implementation below    }}
If the message is of the type 
vx_resp_base
, then the game can look at the 
vx_resp_base.type
field to determine the actual response type. The following code displays an example of this message type: 
void MyGamesResponseHandler(vx_resp_base_t *resp){    if (resp->type == resp_connector_create)    {        // Call your response handler here        vx_resp_connector_create_t *typed_resp = reinterpret_cast<x_resp_connector_create_t *>(resp);        MyGamesConnectorCreateHandler(typed_resp);    }    else if (resp->type == ...)    {        ...    }}
If the message is of the type 
vx_evt_base
, then the game can look at the 
vx_evt_base.type
field to determine the actual response type. The following code displays an example of this message type: 
void MyGamesEventHandler(vx_evt_base_t *evt){    if (evt->type == evt_account_login_state_change)    {        // Call your response handler here        vx_evt_account_login_state_change *typed_evt =            reinterpret_cast<vx_evt_account_login_state_change *>(evt);        MyGamesLoginStateChangeHandler(typed_evt);    }    else if (evt->type == ...)    {        ...    }}