InvokeService (RDS)
Returns a pointer to the requested interface on a more capable version of the object.
Important
Beginning with Windows 8 and Windows Server 2012, RDS server components are no longer included in the Windows operating system (see Windows 8 and Windows Server 2012 Compatibility Cookbook for more detail). RDS client components will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Applications that use RDS should migrate to WCF Data Service.
Syntax
object.InvokeService(REFID riid, IUknown* punkNotSoFunctionalInterface, IUknown** ppunkMoreFunctionalInterface) As HRESULT
Parameters
riid
[in] The identifier of the interface being requested.
punkNotSoFunctionalInterface
[in] The less capable source object.
ppunkMoreFunctionalInterface
[out] The address of the pointer variable that receives the interface pointer requested in riid. Upon successful return, the ppunkMoreFunctionalInterface parameter contains the requested interface pointer to the object. If the object does not support the interface specified in riid, ppunkMoreFunctionalInterface is set to NULL.
Return Value
An HRESULT value that indicates if the call to the InvokeService method was successful.
Remarks
The RDS cursor engine implementation of InvokeService takes the input rowset (or multiple results object), populates the cursor engine from the input rowset, and then returns a pointer on itself.
Applies To
See Also
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