Catch kTransformPageItemsCmdBoss command

Hello everyone.
Can't get how to sign on command handling:
I've object,
CMyShape: public CGraphicFrameShape
Then, when I select it on the Drawing, and set the scaling percentage to 200%, the bounding box is scaled twice bigger. But I also need to scale by objects to 200%.
How to sign on scaling command?
I have debug version of InDesign. I added my plug-in, attached with visual studio to InDesign process, turned on all the commands in Diagnostics. Then tried to scale my object.
Thats what i got:
Turning command trace on
kTransformPageItemsCmdBoss Diagnostics::ProcessCommand()
IID_ICOMMAND, kTransformPageItemsCmdImpl
IID_IDYNAMICUPDATE, kDynamicUpdateImpl
IID_ITRANSFORMCMDDATA, kTransformCmdDataImpl
IID_IBOUNDSDATA, kBoundsDataImpl
IID_IBOUNDSCHECKER, kTransformCmdBoundsCheckerImpl
IID_IMOVERELATIVECMDDATA, kMoveRelativeCmdDataImpl
IID_IROTATEITEMCMDDATA, kRotateItemCmdDataImpl
IID_ISCALEITEMCMDDATA, kScaleItemCmdDataImpl
IID_ISKEWITEMCMDDATA, kSkewItemCmdDataImpl
Item List
uid 0xc2 ClassID Unknown3rdPartyPrefix + 25 (0xe9419)
kRedefineScalingCmdBoss Diagnostics::ProcessCommand()
IID_ICOMMAND, kRedefineScalingCmdImpl
IID_IUIDDATA, kUIDDataImpl
IID_ISCALEOBJECTCMDDATA, kScaleObjectCmdDataImpl
Item List
uid 0xc2 ClassID Unknown3rdPartyPrefix + 25 (0xe9419)
kGfxApplyAttrOverrideCmdBoss Diagnostics::ProcessCommand()
IID_ICOMMAND, kGfxApplyAttributeOverrideCmdImpl
IID_IPMUNKNOWNDATA, kPMUnknownDataImpl
IID_ICLASSIDLISTDATA, kClassIDListDataImpl
IID_IAPPLYATTRIBUTE_CMDDATA, kApplyAttributeCmdDataImpl
Item List
uid 0xc2 ClassID Unknown3rdPartyPrefix + 25 (0xe9419)
kTransformPageItemsCmdBoss Diagnostics::ProcessCommand()
IID_ICOMMAND, kTransformPageItemsCmdImpl
IID_IDYNAMICUPDATE, kDynamicUpdateImpl
IID_ITRANSFORMCMDDATA, kTransformCmdDataImpl
IID_IBOUNDSDATA, kBoundsDataImpl
IID_IBOUNDSCHECKER, kTransformCmdBoundsCheckerImpl
IID_IMOVERELATIVECMDDATA, kMoveRelativeCmdDataImpl
IID_IROTATEITEMCMDDATA, kRotateItemCmdDataImpl
IID_ISCALEITEMCMDDATA, kScaleItemCmdDataImpl
IID_ISKEWITEMCMDDATA, kSkewItemCmdDataImpl
Item List
uid 0xc2 ClassID Unknown3rdPartyPrefix + 25 (0xe9419)
kSetBoundingBoxCmdBoss Diagnostics::ProcessCommand()
IID_IWHENTORECALCCJKGRID, kWhenToRecalcCJKGridImpl
IID_ICOMMAND, kSetBoundingBoxCmdImpl
IID_ISETBOUNDINGBOXCMDDATA, kSetBoundingBoxCmdDataImpl
IID_IDYNAMICUPDATE, kDynamicUpdateImpl
IID_IBOUNDSDATA, kBoundsDataImpl
IID_IBOUNDSCHECKER, kSetBoundingBoxCheckerImpl
IID_IBOOLDATA, kBoolDataImpl
Item List
uid 0xc2 ClassID Unknown3rdPartyPrefix + 25 (0xe9419)
kTransformAgainSentinelCmdBoss Diagnostics::ProcessCommand()
IID_ICOMMAND, kTransformAgainSentinelCmdImpl
Item List is empty
Then I enabled Spying on kTransformPageItemsCmdBoss command.
That's what I got in output:
Begin cmd no. 0 'kTransformPageItemsCmdBoss' (class id 0x2c44)
>> Direct Change: SetDirty (id: 194)
>> Direct Change: SetDirty (id: 194)
Begin cmd no. 1 'kRedefineScalingCmdBoss' (class id 0x2c45)
Begin cmd no. 2 'kGfxApplyAttrOverrideCmdBoss' (class id 0x6e3f)
## Begin Sequence
## End Sequence
End cmd 'kGfxApplyAttrOverrideCmdBoss' (class id 0x6e3f)
Begin cmd no. 3 'kTransformPageItemsCmdBoss' (class id 0x2c44)
End cmd 'kTransformPageItemsCmdBoss' (class id 0x2c44)
Begin cmd no. 4 'kSetBoundingBoxCmdBoss' (class id 0x2c26)
End cmd 'kSetBoundingBoxCmdBoss' (class id 0x2c26)
End cmd 'kRedefineScalingCmdBoss' (class id 0x2c45)
// Root Command is Done
End cmd 'kTransformPageItemsCmdBoss' (class id 0x2c44)
Read SDK a lot, but still CAN'T GET how to sign on scaling command?
Which interface i need to realize and where to pass it, in order to get my handler involved?

Could you clarify, how to realize that document observer.
I've tried to implement observer as it is found in
(CS3 SDK)\source\sdksamples\customdatalink, but not realizing responder - the objectd has not been created and constructor has not been called.
Could you be so kind to clarify how exactly I should realize my observer and how should I interact with it in order to get the command, described earlier. May be with some samples.

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you... do know how to program in java, right?A. NOOOO :)
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