IXRVisualStateCollection::Add (Compact 2013)

3/28/2014

This method adds an item to the end of the IXRVisualStateCollection collection and retrieves the index that indicates where it was added.

Syntax

virtual HRESULT STDMETHODCALLTYPE Add(
    __in IXRVisualState* pObject,
    __out_opt int* pIndex
) = 0;

pObject
[in] Pointer to an IXRVisualState object 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.

Returns an HRESULT that indicates success or failure. The following table shows possible return values.

Value	Description
S_OK	Success.
XR_E_COLLECTION_ELEMENT_ALREADY_ASSOCIATED	You attempted to add an item that already exists.

Because an object cannot exist more than once in a visual tree, an item can occur only once in this object collection.

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME