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CDHtmlDialog::GetElementInterface 

Retrieves the requested interface pointer from the HTML element identified by szElementId.


template <class Q>
HRESULT GetElementInterface(
   LPCTSTR szElementId,
   Q** ppvObj 
);
HRESULT GetElementInterface(
   LPCTSTR szElementId,
   REFIID riid,
   void** ppvObj 
);

Parameters

szElementId

The ID of an HTML element.

ppvObj

Address of a pointer that will be filled with the requested interface pointer if the element is found and the query succeeds.

riid

The interface ID (IID) of the requested interface.

A standard HRESULT value.

CComPtr<IHTMLButtonElement> spBtn;
HRESULT hr = S_OK;

// Use the template overload
hr = GetElementInterface(L"Button1", &spBtn);

// Use the nontemplate overload
hr = GetElementInterface(L"Button1", IID_IHTMLButtonElement, reinterpret_cast<void**>(&spBtn));

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