Annotation Glossary

A

allow-none

NULL is OK, both for passing and for returning.

C

closure

This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.

E

element-type

Generics and defining elements of containers and arrays.

N

nullable

NULL may be passed as the value in, out, in-out; or as a return value.

O

out

Parameter for returning results. Default is transfer full.

S

scope async

The callback is valid until first called.

scope notified

The callback is valid until the GDestroyNotify argument is called.

T

transfer container

Free data container after the code is done.

transfer floating

Alias for transfer none, used for objects with floating refs.

transfer full

Free data after the code is done.

transfer none

Don't free data after the code is done.