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

error-domains

Typed errors. Similar to throws in Java.

I

in

Parameter for input. Default is transfer none.

O

out

Parameter for returning results. Default is transfer full.

S

scope async

The callback is valid until first called.

T

transfer full

The caller owns the data, and is responsible for free it.

transfer none

The data is owned by the callee, which is responsible of freeing it.