那里有关于IShellChangeNotify::OnChange的实例代码,跪谢!!

Question

讲解IShellChangeNotify的内容网页,小弟深表感谢

Answer 1

STDMETHODIMP CMyShellChangeNotify::OnChange(LONG lEvent, 
                                            LPCITEMIDLIST pidl1, 
                                            LPCITEMIDLIST pidl2)
{
    HRESULT hr = E_FAIL;
    int iImage;    switch(lEvent)
    {
        // An image in the system image list has changed.
        case SHCNE_UPDATEIMAGE:
        {
            hr = S_OK;            if (pidl2)
                iImage = SHHandleUpdateImage(pidl2);
            else
                iImage = *(int UNALIGNED *)((BYTE *)pidl1 + 2);
               
            if (iImage != -1)
            {
                // Process iImage as desired.
            }
            break;
        }
        // Other cases
    }
    return hr;
}
http://msdn.microsoft.com/library/en-us/shellcc/platform/shell/reference/functions/shhandleupdateimage.asp