[ Version ( since = "1.1.3" ) ]
public void set_message_func (owned BufferMessageFunc func)
Sets the implementation function for BufferMessageFunc.
The callback and its associated data are preserved by reset and
clear_contents. The destroy function is called when the
callback is replaced or removed, or when buffer is destroyed.
| func |
Callback function |
| buffer |
An Buffer |
| destroy |
The function to call when |
| user_data |
Data to pass to |