C++ (Cpp) COMPtr::goToItem примеры использования

Пример #1

void LayoutTestController::clearBackForwardList()
{
    COMPtr<IWebView> webView;
    if (FAILED(frame->webView(&webView)))
        return;

    COMPtr<IWebBackForwardList> backForwardList;
    if (FAILED(webView->backForwardList(&backForwardList)))
        return;

    COMPtr<IWebHistoryItem> item;
    if (FAILED(backForwardList->currentItem(&item)))
        return;

    // We clear the history by setting the back/forward list's capacity to 0
    // then restoring it back and adding back the current item.
    int capacity;
    if (FAILED(backForwardList->capacity(&capacity)))
        return;

    backForwardList->setCapacity(0);
    backForwardList->setCapacity(capacity);
    backForwardList->addItem(item.get());
    backForwardList->goToItem(item.get());
}