If true is returned, the reference count reached 0. After this point, rc
is an undefined state and must be reinitialized with
g_ref_count_init() to be used again.
Parameters
rc: number
the address of a reference count variable
Returns [boolean,number]
true if the reference count reached 0, and false otherwise
Decreases the reference count.
If
trueis returned, the reference count reached 0. After this point,rcis an undefined state and must be reinitialized withg_ref_count_init()to be used again.