Retrieves an injected source by means of an index.
HRESULT Item (
[in] Index of the IDiaInjectedSource object to be retrieved. The index is the range 0 to count-1, where count is returned by the IDiaEnumInjectedSources::get_Count method.
[out] Returns an IDiaInjectedSource object representing the injected source.
If successful, returns S_OK; otherwise, returns an error code.