Count (Opnum 3)

The Count method is received by the server in an RPC_REQUEST packet. In response, the server returns the count of IAppHostElementSchema objects that are contained in the collection.

 [propget] HRESULT Count(
   [out, retval] DWORD* pcCount

pcCount: Contains the count in the collection.

Return Values: The server MUST return zero if it successfully processes the message that is received from the client. If processing fails, the server MUST return a nonzero HRESULT code as defined in [MS-ERREF]. The following table describes the error conditions that MUST be handled and the corresponding error codes. A server MAY return additional implementation-specific error codes.

Return value/code




The operation completed successfully.



One or more parameters are incorrect or null.