| GTK+ 3 Reference Manual | ||||
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| C | T | I | E | A | S | T | A | T | S | O | ||||
This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.
Free data after the code is done.
Parameter for input. Default is transfer none.
Parameter for input and for returning results. Default is transfer full.
Generics and defining elements of containers and arrays.
NULL is ok, both for passing and for returning.
The callback is valid until first called.
Override the parsed C type with given type.
Free data container after the code is done.
Parameter points to an array of items.
Don't free data after the code is done.
The callback is valid only during the call to the method.
Out parameter, where caller must allocate storage.
Parameter for returning results. Default is transfer full.