|local _callback (data, ...)||Handler for Gtk signal callbacks.|
|local _callback_return_value (L, return_type, cbi)||Handle return values from the Lua handler to pass back to Gtk.|
|local _free_callback_info (data, closure)||Free memory on signal handler disconnection.|
|local connect (object, signal_name, handler, ...)||Connect a signal to a Lua function.|
|disconnect (object, handler_id)||Disconnect a signal handler from a given object.|
- local _callback (data, ...)
Handler for Gtk signal callbacks. Find the proper Lua callback, build the parameters, call, and optionally return something to Gtk. This runs in the lua_State that was used to call glib_connect with, and therefore probably uses the stack of the main function, which mustn't be modified.
- data: a pointer to a struct callback_info
- ...: Variable arguments, and finally the object pointer.
Return value:A value to return to Gtk.
- local _callback_return_value (L, return_type, cbi)
Handle return values from the Lua handler to pass back to Gtk. Not many different types are supported - but I think no others are actually used.
- L: lua_State
- return_type: The GType of the expected return value
- cbi: callback_info of this signal
Return value:An integer to return to Gtk.
- local _free_callback_info (data, closure)
Free memory on signal handler disconnection. The struct callback_info contains references to entries in the registry of the Lua state. They must be unreferenced, then the structure itself is freed. XXX the Lua state might not exist anymore?
- local connect (object, signal_name, handler, ...)
Connect a signal to a Lua function.
- signal_name: Name of the signal, like "clicked"
- handler: A Lua function (the callback)
- ...: (optional) extra parameters to the callback
- disconnect (object, handler_id)
Disconnect a signal handler from a given object.
- object: The object to disconnect a handler for
- handler_id: The handler ID of the connection, as returned from the connect function.