IMoniker - Pointer Moniker Implementation
A pointer
moniker essentially wraps an interface pointer so that it looks like a moniker
and can be passed to those interfaces that require monikers. Binding a pointer
moniker is done by calling the pointer s QueryInterface method.
Instances of
pointer monikers refuse to be serialized, that is, IPersistStream::Save
When to Use
Pointer
monikers are rarely needed. Use pointer monikers only if you need monikers to
identify objects that have no persistent representation. Pointer monikers allow
such objects to participate in a moniker-binding operation.
Remarks
IMoniker::BindToObject
This method
queries the wrapped pointer for the requested interface.
IMoniker::BindToStorage
This method
queries the wrapped pointer for the requested interface.
IMoniker::Reduce
This method
returns MK_S_REDUCED_TO_SELF and passes back the same moniker.
IMoniker::ComposeWith
If pmkRight
is an anti-moniker, the returned moniker is NULL; if pmkRight is a
composite whose leftmost component is an anti-moniker, the returned moniker is
the composite after the leftmost anti-moniker is removed. If fOnlyIfNotGeneric
is FALSE, the returned moniker is a generic composite of the two monikers;
otherwise, the method sets *ppmkComposite to NULL and returns
MK_E_NEEDGENERIC.
IMoniker::Enum
This method
is not implemented (that is, it returns E_NOTIMPL).
IMoniker::IsEqual
This method
returns S_OK only if both are pointer monikers and the interface pointers that
they wrap are identical.
IMoniker::Hash
This method
calculates a hash value for the moniker.
IMoniker::IsRunning
This method
always returns S_OK, because the object identified by a pointer moniker must
always be running.
IMoniker::GetTimeOfLastChange
This method
is not implemented (that is, it returns E_NOTIMPL).
IMoniker::Inverse
This method
returns an anti-moniker (i.e., the results of calling CreateAntiMoniker
IMoniker::CommonPrefixWith
If the two
monikers are equal, this method returns MK_S_US and sets *ppmkPrefix to
this moniker. Otherwise, the method returns MK_E_NOPREFIX and sets *ppmkPrefix
to NULL.
IMoniker::RelativePathTo
This method
is not implemented (that is, it returns E_NOTIMPL).
IMoniker::GetDisplayName
This method
is not implemented (that is, it returns E_NOTIMPL).
IMoniker::ParseDisplayName
This method
queries the wrapped pointer for the IParseDisplayName
IMoniker::IsSystemMoniker
This method
returns S_OK and indicates MKSYS_POINTERMONIKER.
See Also