SWbemObject.Derivation_ property

The Derivation_ property of the SWbemObject object contains an array of strings that describe the class derivation hierarchy for the instance being referenced. The first element in the array defines the parent class and the last element defines the dynasty class. This property is read-only.

For an explanation of this syntax, see Document Conventions for the Scripting API.

This property is read-only.

Syntax

SWbemObject.Derivation_ As String

Property value

Examples

The following VBScript sample describes how to retrieve the class hierarchy for win32_logicaldisk.

on Error resume next

Set c = GetObject("winmgmts://./root/cimv2:win32_logicaldisk")
d = c.Derivation_

for x = LBound(d) to UBound(d)
 WScript.Echo d(x)
Next

if err <> 0 then
 WScript.Echo Err.Description
end if

he following Perl sample describes how to retrieve the class hierarchy for win32_logicaldisk.

use strict;
use Win32::OLE;

my ($C, $D, @collection);

eval {$C = Win32::OLE->GetObject("winmgmts:{impersonationLevel=impersonate}!\\\\.\\root\\cimv2")->
  InstancesOf ("win32_logicaldisk") };
unless ($@) 
{
 @collection = in $C;
 eval {$D = $collection[0]->Derivation_();};
 print "\n";
 unless ($@) 
 {
  print map{"$_\n"} @{$D};
 }
 else
 {
  print STDERR Win32::OLE->LastError, "\n";
 }
}
else
{
 print STDERR Win32::OLE->LastError, "\n";
}

Requirements

Minimum supported client
Windows Vista
Minimum supported server
Windows Server 2008
Header
Wbemdisp.h
Type library
Wbemdisp.tlb
DLL
Wbemdisp.dll
CLSID
CLSID_SWbemObject
IID
IID_ISWbemObject