IEnumMoniker
The
IEnumMoniker interface is used to enumerate the components of a moniker or to enumerate
the monikers in a table of monikers.
When to Implement
You need to implement
IEnumMoniker if you are writing a new type of moniker and your monikers have an internal
structure that can be enumerated. Your implementation of
IMoniker::Enum must return an enumerator that implements
IEnumMoniker and can enumerate your moniker's components. If your moniker has no structure
that can be enumerated, your
IMoniker::Enum method can simply return a NULL pointer.
When to Use
Use the
IEnumMoniker interface if you need to enumerate the components of a composite moniker, or
to enumerate the monikers in a table.
OLE defines two interfaces that return an
IEnumMoniker interface pointer:
- The IMoniker::Enum method returns an IEnumMoniker implementation that can enumerate forwards or backwards through the
components of the moniker. For a description of how two of the system-supplied types of
monikers enumerate their components, see IMoniker
File Moniker Implementation and IMoniker Generic Composite Moniker Implementation.
- The IRunningObjectTable::EnumRunning method returns an IEnumMoniker implementation that can enumerate the monikers registered in a Running Object
Table.
The prototypes of the member functions are as follows:
HRESULT Next(
ULONG celt,
IMoniker * rgelt,
ULONG * pceltFetched)
HRESULT Skip(
ULONG celt)
HRESULT Reset(
void)
HRESULT Clone(
IEnumMoniker ** ppenum)
See Also
IEnumXXXX,
IMoniker::Enum,
IRunningObjectTable::EnumRunning
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