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GStreamer Base Plugins 1.0 Library Reference Manual | ||
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NULL is ok, both for passing and for returning.
Generics and defining elements of containers and arrays.
Parameter for returning results. Default is transfer full.
Don't free data after the code is done.
Override the parsed C type with given type.
This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.
The callback is valid until first called.
Parameter points to an array of items.
Free data after the code is done.