interface-signal Regress.TestInterface::interface-signal def callback(test_interface, ptr, user_param1, ...) <code>test_interface</code>

instance of that is emitting the signal

 <code>ptr</code>

the code must look up the signal with g_interface_info_find_signal() in order to get this to work.

 <code>user_param1</code>

first user parameter (if any) specified with the connect() method

<code>...</code>

additional user parameters (if any)