MediaStreamContainer::getInternalInterface Method |
|||||||||||||||||
Returns a reference to an internal interface. | |||||||||||||||||
Syntax: | template<class TItf> smart_com<TItf> getInternalInterface( smart_com<TItf>& pItf ) const; template<class TItf> smart_com<TItf> getInternalInterface( REFIID riid, smart_com<TItf>& pItf ) const; |
||||||||||||||||
|
|||||||||||||||||
Return value: | A reference to the interface requested or 0, if the interface is not supported. |
||||||||||||||||
Remarks: | This method allows it to fetch a custom interface from a media stream container. To use this method, the compiler must support the __uuidof operator. If the compiler supports the __declspec( uuid( "iid" ) ) option, an iid can be assigned to the interface this way. If the compiler does not support this option, the iid must be passed to the method as a parameter. |
||||||||||||||||
Sample: | This example shows how to fetch an interface from a codec. smart_com<IMSCInterface> pItf; if( pContainer->getInternalInterface( pItf ) == 0 ) { ... // interface is not supported, so error handling } else { ... // use the interface } |
||||||||||||||||
See also: | MediaStreamContainer, smart_com |