_com_ptr_t::operator =

Microsoft Specific

Assigns a new value to an existing _com_ptr_t object.

Syntax

template<typename _OtherIID>
_com_ptr_t& operator=( const _com_ptr_t<_OtherIID>& p );

// Sets a smart pointer to be a different smart pointer of a different
// type or a different raw interface pointer. QueryInterface is called
// to find an interface pointer of this smart pointer's type, and
// Release is called to decrement the reference count for the previously
// encapsulated pointer. If QueryInterface fails with an E_NOINTERFACE,
// a NULL smart pointer results.
template<typename _InterfaceType>
_com_ptr_t& operator=(_InterfaceType* p );

// Encapsulates a raw interface pointer of this smart pointer's type.
// AddRef is called to increment the reference count for the encapsulated
// interface pointer, and Release is called to decrement the reference
// count for the previously encapsulated pointer.
template<> _com_ptr_t& 
operator=( Interface* pInterface ) throw();

// Sets a smart pointer to be a copy of another instance of the same
// smart pointer of the same type. AddRef is called to increment the
// reference count for the encapsulated interface pointer, and Release
// is called to decrement the reference count for the previously
// encapsulated pointer.
_com_ptr_t& operator=( const _com_ptr_t& cp ) throw();

// Sets a smart pointer to NULL. The NULL argument must be a zero.
_com_ptr_t& operator=( int null );

// Sets a smart pointer to be a _variant_t object. The encapsulated
// VARIANT must be of type VT_DISPATCH or VT_UNKNOWN, or it can be
// converted to one of these two types. If QueryInterface fails with an
// E_NOINTERFACE error, a NULL smart pointer results.
_com_ptr_t& operator=( const _variant_t& varSrc );

Remarks

Assigns an interface pointer to this _com_ptr_t object.

END Microsoft Specific

See also

_com_ptr_t Class