Cogl 2.0 Reference Manual |
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NULL is ok, both for passing and for returning.
Parameter points to an array of items.
Parameter for returning results. Default is transfer full.
The callback is valid until the GDestroyNotify argument is called.
This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.
Out parameter, where caller must allocate storage.
Free data after the code is done.
Parameter for input. Default is transfer none.
Don't free data after the code is done.
Parameter for input and for returning results. Default is transfer full.
The callback is valid only during the call to the method.