Annotation Glossary

A

allow-none: NULL is OK, both for passing and for returning.
array: Parameter points to an array of items.

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: Free data after the code is done.
transfer none: Don't free data after the code is done.