3.1.4.14.4 CollectionSchema (Opnum 6)
The CollectionSchema method is received by the server in an RPC_REQUEST packet. If the specified IAppHostElement object supports child collection elements, the server returns the schema and constraints of the collection that is contained in the corresponding IAppHostElement object.
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[propget] HRESULT CollectionSchema( [out, retval] IAppHostCollectionSchema** ppCollectionSchema );
ppCollectionSchema: Contains an IAppHostCollectionSchema.
Return Values: The server MUST return zero if it successfully processes the message that is received from the client. In this case, *ppCollectionSchema is not NULL. 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.
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Return value/code
Description
0X00000000
NO_ERROR
The operation completed successfully.
0X80070057
ERROR_INVALID_PARAMETER
One or more parameters are incorrect or null.