Hi to all

in debugging my plugin I notice that there is a call to ContainerWriter::InternalQueryInterface with iid:

0x45ffbae6 - e8f4 - 48e9

and searching for these value in the SDK I found is the IID_IACFParametersXML IID.  According to the example, ContainerWriter class shouldn't inherite from IACFParametersXML but is the  MediaVolumeWriter class that inherite from IACFParametersXML.

May be it's a mistake due to the fact that I didn't check the last 8 bytes of IID ?

best regards

You’re not mistaken. The host checks if plug-in's IMediaWriter components implement IACFParametersXML in order to build the plug-in UI. IACFParametersXML implementation is optional. If plug-in doesn’t need a UI it doesn’t implement the interface. A plug-in that performs volume-based export can implement IACFParametersXML in the same component that implements IMediaVolumeWriter. A plug-in that performs file-based export can implement IACFParametersXML in the same component that implements IMediaContainerWriter.

Alexey