2.2.3.1 VSS_OBJECT_UNION Union
The VSS_OBJECT_UNION defines the union of object types that can be defined by the VSS_OBJECT_PROP structure (section 2.2.3.2).
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[switch_type(VSS_OBJECT_TYPE)] typedef union { [case(VSS_OBJECT_SNAPSHOT)] VSS_SNAPSHOT_PROP Snap; [case(VSS_OBJECT_PROVIDER)] VSS_PROVIDER_PROP Prov; [default]; } VSS_OBJECT_UNION;
Snap: The structure specifies a shadow copy object as a VSS_SNAPSHOT_PROP structure (section 2.2.3.3).
Prov: The structure specifies a VSS provider object. The Shadow Copy Management Protocol is not used to manage VSS provider objects; therefore, this member MUST NOT be referenced and MUST be ignored on receipt.