3.1.4.20.2 InputSchema (Opnum 4)

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The InputSchema method is received by the server in an RPC_REQUEST packet. In response, the server returns the schema and constraints of the input parameters to the method call. This can be NULL if no input parameters are defined for the method.

 [propget] HRESULT InputSchema(
   [out, retval] IAppHostElementSchema** ppInputSchema
 );

ppInputSchema: Contains the input parameter schema.

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

Description

0X00000000

NO_ERROR

The operation completed successfully.

0X80070057

ERROR_INVALID_PARAMETER

One or more parameters are incorrect or null.