IEnumOleUndoUnits::Next method (ocidl.h)
Retrieves the specified number of items in the enumeration sequence.
Syntax
HRESULT Next(
[in] ULONG cElt,
[out] IOleUndoUnit **rgElt,
[out] ULONG *pcEltFetched
);
Parameters
[in] cElt
The number of items to be retrieved. If there are fewer than the requested number of items left in the sequence, this method retrieves the remaining elements.
[out] rgElt
An array of enumerated items.
The enumerator is responsible for calling AddRef, and the caller is responsible for calling Release through each pointer enumerated. If cElt is greater than 1, the caller must also pass a non-NULL pointer passed to pcEltFetched to know how many pointers to release.
[out] pcEltFetched
The number of items that were retrieved. This parameter is always less than or equal to the number of items requested.
Return value
If the method retrieves the number of items requested, the return value is S_OK. Otherwise, it is S_FALSE.
Remarks
The caller is responsible for calling the Release method for each element in the array once this method returns successfully. If cUndoUnits is greater than one, the caller must also pass a non-NULL pointer to pcFetched to get the number of pointers it has to release.
E_NOTIMPL is not allowed as a return value. If an error value is returned, no entries in the rgpcd array are valid on exit and require no release.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | ocidl.h |