The debug dump from IRotView is as follows. Note that the call to
IMoniker::Reduce has the moniker's 'this' pointer as the *ppmkToLeft value.
Does this make sense? The IRotView version I have is 1.1 on it's AboutBox
but 5.00.1641.0001 in the binary. Do I just have a munged version perhaps?
The perplexing thing is that M$'s own monikers work while mine does not.
This means that their monikers must be anticipating the quirk or something
else is causing the IRotView to call my moniker differently. [Why can't I
get a simple problem!?!]

<DEBUG>
CTMFactory - IUnknown
CTMFactory - IClassFactory
CTMoniker Constructed
CTMoniker - IMarshal
CTMoniker::UnmarshalInterface(0056F534,IMoniker,0056F52C)
CTMoniker::Load(0056F534)
CTMoniker - IMoniker
CTMoniker::GetDisplayName(00500920,00000000,0056F8A0)
 DisplayName='FOOBAR:{12345678-9ABC-DEF0-1234-56789ABCDEF0};widget;1' [S_OK]
CTMoniker::GetDisplayName(00500920,00000000,0056F6E8)
 DisplayName='FOOBAR:{12345678-9ABC-DEF0-1234-56789ABCDEF0};widget;1' [S_OK]
CTMoniker::Reduce(00500920,0x0,0056F6EC(=01120D00),0056F6F0(=00000000)),
this=01120D00
CTMoniker::GetDisplayName(00500920,00000000,0056F6E8)
 DisplayName='FOOBAR:{12345678-9ABC-DEF0-1234-56789ABCDEF0};widget;1' [S_OK]
CTMoniker::Inverse(0056F6F0)
CTMoniker::Enum(1,0056F6CC)
CTMoniker::Hash(00690E94)
CTMoniker::GetTimeOfLastChange(00500920,00000000,00690E9C)
CTMoniker::IsSystemMoniker(00690EA4)
CTMoniker::IsRunning(00500920,00000000,00000000)
CTMoniker::Reduce(00403A00,0x0,00000000(=00000000),0056EB48(=00000000)),
this=01120D00
CTMoniker - IROTData
CTMoniker::GetComparisionData(0056EB6C,2048,0056EB68)
</DEBUG>

Ciao,
Dee

> -----Original Message-----
> From: Distributed COM-Based Code [mailto:DCOMDISCUSS.MICROSOFT.COM]On
> Behalf Of Dee Holtsclaw
> Sent: Tuesday, October 30, 2001 9:23 AM
> To: DCOMDISCUSS.MICROSOFT.COM
> Subject: IMoniker::Reduce implementation vs. IRotView
>
>
> I'm looking for a solution to problems with my IMoniker implementation.
> Looking at the 'mkbase.h' implementation from Tim Ewald, Chris
> Sells and Don
> Box (inline), this implementation does not take into account 'ppmkToLeft'
> being NULL. When it is, the ROT will reject a registration since Reduce
> returns E_POINTER. In addition to this, the IRotView viewer hangs if you
> zero out the interface pointer it passes in *ppmkToLeft. The viewer also
> adds an unreleased reference each time it's refreshed. This leads me to
> believe there's a problem with the Reduce method (or the IRotView
> utility is
> munged).
>
> My own moniker class is a root level object and self-contained. At the
> present time, there are no monikers which can be legitamitely composed to
> the left or right of mine. I can successfully place the moniker
> into the ROT
> and retrieve it in another process -- once. Subsequent attempts to get the
> object from the ROT return MK_E_UNAVAILABLE yet it remains visible in the
> IRotView until released.
>
> Any assistance would be greatly appreciated -- I really need to keep what
> hair I still have...
>
> TIA
> Ciao,
> Lawrence "Dee" Holtsclaw
>
> Yes, this is cross-posted -- SIA (Sorry in advance)
>
> <MKBASE CODE>
> inline
> STDMETHODIMP CComMonikerRootBase::Reduce(
> IBindCtx* pbc,
> DWORD dwReduceHowFar,
> IMoniker** ppmkToLeft,
> IMoniker** ppmkReduced)
> {
> HRESULT hr = E_POINTER;
> if( ppmkReduced && ppmkToLeft )
> {
> *ppmkToLeft = 0;
> (*ppmkReduced = this)->AddRef();
> hr = MK_S_REDUCED_TO_SELF;
> }
>
> return hr;
> }
> </MKBASE CODE>
>
> <MY REDUCE CODE>
> STDMETHODIMP CTMoniker::Reduce(IBindCtx *pbc, DWORD
> dwReduceHowFar, IMoniker
> **ppmkToLeft, IMoniker **ppmkReduced)
> {
> ATLTRACE("CTMoniker::Reduce(%p,0x%x,%p(=%p),%p(=%p))\n",
> pbc, dwReduceHowFar, ppmkToLeft, ppmkToLeft ?
> *ppmkToLeft : NULL,
> ppmkReduced, ppmkReduced ? *ppmkReduced : NULL);
> if(!ppmkReduced)
> return E_POINTER;
> // if(ppmkToLeft){
> // if(*ppmkToLeft)
> // (*ppmkToLeft)->Release();
> // *ppmkToLeft = NULL;
> // }
> (*ppmkReduced = this)->AddRef();
> return MK_S_REDUCED_TO_SELF;
> }
> </MY REDUCE CODE>
>
> ----------------------------------------------------------------
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