### IUnknown::AddRef

The IUnknown::AddRef method increases the reference count of the object by 1.

ULONG AddRef();

##### Parameters

None.

##### Return Values

Returns the new reference count.

##### Remarks

When the object is created, its reference count is set to 1. Every time an application obtains an interface to the object or calls the AddRef method, the object's reference count is increased by 1. Use the Release method to decrease the object's reference count by 1.

This method is part of the IUnknown interface inherited by the object.