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__InstanceModificationEvent class

The __InstanceModificationEvent system class reports an instance modification event, which is a type of intrinsic event generated when an instance changes in the namespace.

The following syntax is simplified from Managed Object Format (MOF) code and includes all inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

class __InstanceModificationEvent : __InstanceOperationEvent
{
  object PreviousInstance;
  uint8  SECURITY_DESCRIPTOR[];
  object TargetInstance;
  uint64 TIME_CREATED;
};

Members

The __InstanceModificationEvent class inherits from __InstanceOperationEvent. __InstanceModificationEvent also has these types of members:

Properties

Properties

The __InstanceModificationEvent class has these properties.

PreviousInstance

Data type: object
Access type: Read-only

Copy of the instance prior to modification.

SECURITY_DESCRIPTOR

Data type: uint8 array
Access type: Read-only

Descriptor used by the event provider to determine which users can receive the event. This property is inherited from __Event.

Windows 2000, Windows NT Server, and Windows Me/98/95: This property is not available.

TargetInstance

Data type: object
Access type: Read-only

New version of the changed instance. This property is inherited from __InstanceOperationEvent.

TIME_CREATED

Data type: uint64
Access type: Read-only

Unique value that indicates the time at which the event was generated. This is a 64-bit value that represents the number of 100-nanosecond intervals after January 1, 1601. The information is in the Coordinated Universal Times (UTC) format.

Windows 2000, Windows NT Server, and Windows Me/98/95: This property is not available.

This property is inherited from __Event.

For more information about using uint64 values in scripts, see Scripting in WMI.

Remarks

The __InstanceModificationEvent class is derived from __InstanceOperationEvent.

Examples

For script code examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.

For C++ code examples, see WMI C++ Application Examples.

Requirements

Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Namespace	all WMI namespaces

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