Public Member Functions | |
HRESULT | NextOne ([out, retval] IAAFTaggedValue **ppTaggedValues) |
Enumerates to the next element in the enumerators list. | |
HRESULT | Next ([in] aafUInt32 count,[out, size_is(count), length_is(*pNumFetched)] IAAFTaggedValue **ppTaggedValues,[out, ref] aafUInt32 *pNumFetched) |
Enumerates the next count elements (AAFTaggedValue pointers) in the enumerator's list, returning them in the given array along with the actual number of enumerated elements in pNumFetched. | |
HRESULT | Skip ([in] aafUInt32 count) |
Instructs the enumerator to skip the next count elements in the enumeration so that the next call to Next will not return those elements. | |
HRESULT | Reset () |
Instructs the enumerator to position itself at the beginning of the list of elements. | |
HRESULT | Clone ([out, retval] IEnumAAFTaggedValues **ppEnum) |
Creates another enumerator with the same state as the current enumerator to iterate over the same list. |
HRESULT IEnumAAFTaggedValues::Clone | ( | [out, retval] IEnumAAFTaggedValues ** | ppEnum | ) |
Creates another enumerator with the same state as the current enumerator to iterate over the same list.
This method makes it possible to record a point in the enumeration sequence in order to return to that point at a later time.
Note: The caller must release this new enumerator separately from the first enumerator.
Succeeds if all of the following are true:
This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:
AAFRESULT_SUCCESS
AAFRESULT_NULL_PARAM
ppEnum | [out,retval] new enumeration |
HRESULT IEnumAAFTaggedValues::Next | ( | [in] aafUInt32 | count, |
[out, size_is(count), length_is(*pNumFetched)] IAAFTaggedValue ** | ppTaggedValues, | ||
[out, ref] aafUInt32 * | pNumFetched | ||
) |
Enumerates the next count elements (AAFTaggedValue pointers) in the enumerator's list, returning them in the given array along with the actual number of enumerated elements in pNumFetched.
The caller is responsible for properly releasing the returned pointers.
Succeeds if all of the following are true:
If this method fails nothing is written to *ppTaggedValues or pNumFetched.
This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:
AAFRESULT_SUCCESS
AAFRESULT_NULL_PARAM
count | [in] number of TaggedValues requested |
ppTaggedValues | [out, size_is(count), length_is(*pNumFetched)] array to receive elements |
pNumFetched | [out,ref] number of actual Tagged Value objects fetched into ppTaggedValues array |
HRESULT IEnumAAFTaggedValues::NextOne | ( | [out, retval] IAAFTaggedValue ** | ppTaggedValues | ) |
Enumerates to the next element in the enumerators list.
The caller is responsible for properly releasing the returned pointer when it is no longer needed.
Succeeds if all of the following are true:
If this method fails nothing is written to *ppTaggedValues.
This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:
AAFRESULT_SUCCESS
AAFRESULT_NULL_PARAM
AAFRESULT_NO_MORE_OBJECTS
ppTaggedValues | [out,retval] The Next Tagged Value |
HRESULT IEnumAAFTaggedValues::Reset | ( | ) |
Instructs the enumerator to position itself at the beginning of the list of elements.
This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:
AAFRESULT_SUCCESS
HRESULT IEnumAAFTaggedValues::Skip | ( | [in] aafUInt32 | count | ) |
Instructs the enumerator to skip the next count elements in the enumeration so that the next call to Next will not return those elements.
Succeeds if all of the following are true:
This method will return the following codes. If more than one of the listed errors is in effect, it will return the first one encountered in the order given below:
AAFRESULT_SUCCESS
AAFRESULT_NO_MORE_OBJECTS
count | [in] Number of elements to skip |