3.1.4.13.7 Schema (Opnum 9)
The Schema method is received by the server in an RPC_REQUEST packet. In response, the server returns an IAppHostCollectionSchema for the specified IAppHostElementCollection, which represents the schema and constraints of the specified collection.
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[propget] HRESULT Schema( [out, retval] IAppHostCollectionSchema** ppSchema );
ppSchema: Contains the schema object.
Return Values: The server MUST return zero if it successfully processes the message that is received from the client. In this case, *ppSchema 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.