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Provider::DeleteInstance(ParsedObjectPath*,long,MethodContext*) method (provider.h)

  • Article

[The Provider class is part of the WMI Provider Framework which is now considered in final state, and no further development, enhancements, or updates will be available for non-security related issues affecting these libraries. The MI APIs should be used for all new development.]

The DeleteInstance method is called by WMI to delete an instance.

Syntax

HRESULT DeleteInstance(
  ParsedObjectPath *pParsedObjectPath,
  long             lFlags,
  MethodContext    *pContext
);

Parameters

pParsedObjectPath

TBD

lFlags

Bitmask of flags with information about the delete operation. This is the value specified by the client in the IWbemServices::DeleteInstance function.

The following flag is handled by (and filtered out) by WMI:

  • WBEM_FLAG_RETURN_IMMEDIATELY

pContext

TBD

Return value

The default framework provider implementation of this method returns WBEM_E_PROVIDER_NOT_CAPABLE to the calling function. The IWbemServices::DeleteInstance function lists the most common return values, although you can choose to return any COM return code.

Remarks

WMI invokes DeleteInstance when a client calls IWbemServices::DeleteInstance against a class. Therefore, you must implement DeleteInstance if your framework provider supports deleting instances. The following list describes a common implementation of DeleteInstance:

  1. Determine which instance the client requested by reading the key properties with one of the Get methods for CInstance, such as CInstance::GetCHString.
  2. Delete the instance.
For more information about deleting instances, see IWbemServices::DeleteInstance.

Requirements

Requirement Value
Minimum supported client Windows Vista
Minimum supported server Windows Server 2008
Target Platform Windows
Header provider.h (include FwCommon.h)
Library FrameDyn.lib
DLL FrameDynOS.dll; FrameDyn.dll