@ref
Description:
Increases the reference count of this.
Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type of this will be propagated to the
return type (using the GCC typeof extension), so any casting the caller needs to do on the return type must be explicit.
Parameters:
| this |
a Object |
Returns:
|
the same this |