GroupTopicChangedCallback
introduction
Callback for group topic changed
Returned template
void GroupTopicChangedCallback(string group_id, GroupTopicInfo topic_info, string user_data);
Return value details
| name | type | description |
|---|---|---|
| group_id | string | Group ID |
| topic_info | GroupTopicInfo | Topic info |
| user_data | string | User-defined data transfered by ImSDK without any processing |