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API Reference

IPERSISTENTSTORAGE_QueryInterface()

deprecated
Items marked as deprecated have been replaced by a more powerful, alternative feature. Deprecated interfaces include a reference to the replacement interface, which should be used for all new application development. Deprecated features are still supported for backward compatibility, but should be avoided when developing new applications.
Brew Release
Brew MP 1.0.2
See Also
Error Codes
Description
This method asks the IPersistentStorage object for another API contract.
Parameters
  • po
    []:
    [in] Pointer to the IPersistentStorage interface object.
  • cl
    []:
    [in] Class ID of the required interface.
  • pp
    []:
    [out] Address of a pointer that is set by the call to point to the new interface.
Interface
IPERSISTENTSTORAGE
Prototype
   int IPERSISTENTSTORAGE_QueryInterface(IPersistentStorage * po,
                                         AEECLSID cl,void ** pp);
Return
AEE_SUCCESS : Object pointer is returned at pp. other : standard error code. The pointer at pp will be NULL or invalid.
Side Effect
None.
Comment
None.
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