RemoveGroupTopicChangedCallback
introduction
Remove group topic updated callback
Remove specified callback, null means remove all callbacks.
Parameter details
| Parameter name | Parameter type | Required | Description |
|---|---|---|---|
| callback | GroupTopicChangedCallback | no | Registered callback GroupTopicChangedCallback |
| stringCallback | GroupTopicChangedStringCallback | no | Registered callback GroupTopicChangedStringCallback |
Returned template
void
Return value details
This function has no return value