CDHtmlDialog::GetElementInterface

  • Article

 

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

Syntax

      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.

Return Value

A standard HRESULT value.

Example

CComPtr<IHTMLInputButtonElement> spBtn1;
CComPtr<IHTMLInputButtonElement> spBtn2;
HRESULT hr = S_OK;

// Use the template overload
hr = GetElementInterface(L"Button1", &spBtn1);

// Use the nontemplate overload
hr = GetElementInterface(L"Button1", IID_IHTMLInputButtonElement, 
   reinterpret_cast<void**>(&spBtn2));

Requirements

Header: afxdhtml.h

See Also

CDHtmlDialog Class
Hierarchy Chart
CDHtmlDialog::GetElement
CDHtmlDialog::GetControlDispatch