# wx.RefCounter¶

This class is used to manage reference-counting providing a simple interface and a counter.

wx.RefCounter can be easily used together with ObjectDataPtr to ensure that no calls to wx.RefCounter.DecRef are missed - thus avoiding memory leaks.

wx.ObjectRefData is a typedef to wx.RefCounter and is used as the built-in reference counted storage for Object-derived classes.

wx.Object, wx.ObjectRefData , ObjectDataPtr , Reference Counting

## Class Hierarchy¶

Inheritance diagram for class RefCounter:

## Methods Summary¶

 __init__ Default constructor. DecRef Decrements the reference count associated with this shared data and, if it reaches zero, destroys this instance of wx.RefCounter releasing its memory. GetRefCount Returns the reference count associated with this shared data. IncRef Increments the reference count associated with this shared data. ~wxRefCounter Destructor.

## Class API¶

class wx.RefCounter(object)

Possible constructors:

RefCounter()


This class is used to manage reference-counting providing a simple interface and a counter.

### Methods¶

__init__(self)

Default constructor.

Initialises the internal reference count to 1.

DecRef(self)

Decrements the reference count associated with this shared data and, if it reaches zero, destroys this instance of wx.RefCounter releasing its memory.

Please note that after calling this function, the caller should absolutely avoid to use the pointer to this instance since it may not be valid anymore.

GetRefCount(self)

Returns the reference count associated with this shared data.

When this goes to zero during a DecRef call, the object will auto-free itself.

Return type

int

IncRef(self)

Increments the reference count associated with this shared data.

~wxRefCounter(self)

Destructor.

It’s declared protected so that wx.RefCounter instances will never be destroyed directly but only as result of a DecRef call.

### Properties¶

RefCount