IXRTimelineCollection::Add (Compact 2013)
3/28/2014
This method adds an item to the end of the IXRTimelineCollection collection and retrieves the index that indicates where it was added.
Syntax
virtual HRESULT STDMETHODCALLTYPE Add(
__in IXRTimeline* pTimeline,
__out_opt int* pIndex
) = 0;
Parameters
- pTimeline
[in] Pointer to an IXRTimelineobject that represents an item to add to this collection.
- pIndex
[out] Optional. Pointer to an integer value that indicates the zero-based index that describes the location of the item added to this collection.
Return Value
Returns an HRESULT that indicates success or failure. This method can also return the error message shown in the following table.
Value |
Description |
|---|---|
XR_E_COLLECTION_ELEMENT_ALREADY_ASSOCIATED |
The element you tried to add is already associated with another collection. You must remove it from the other collection first. |
Remarks
Because an object cannot exist more than once in a visual tree, an item can occur only once in this object collection.
.NET Framework Equivalent
System.Windows.PresentationFrameworkCollection(T).Add
Requirements
Header |
XamlRuntime.h |
sysgen |
SYSGEN_XAML_RUNTIME |