Message types

How to identify and handle different message types.

Read time 2 minutes

Last updated 8 months 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 == ...)    {        ...    }}

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