C / C++ / MFC

// Call for each explorer window

        HWND hExplorer = FindWindowEx(GetDesktopWindow(), NULL, L"ExploreWClass", NULL);

        while(hExplorer != NULL)
        {
            EnumChildWindows(hExplorer, RefreshFolderSelectionCB, (LPARAM)&packet);

            hExplorer = FindWindowEx(GetDesktopWindow(), hExplorer, L"ExploreWClass", NULL);
        }
...
...
...

BOOL CALLBACK    RefreshFolderSelectionCB(HWND hWnd, LPARAM lParam)
{
    WCHAR sBuffer[MAX_PATH] = {0};

    ::GetClassName(hWnd, sBuffer, MAX_PATH);

    if (wcscmp(L"SysTreeView32", sBuffer) == 0)
    {
        RefreshFolderSelectionPacket* pPacket = (RefreshFolderSelectionPacket*)lParam;

        // Refreshes the tree nodes that match the contained full paths, and all their open descendants
        // Paths are updated by calling UpdateItem (below)
        // Cache is used across explorer instances to ensure no path is updated twice.

        RefreshSelection(pPacket);
    }

    return TRUE;
}


...
...
static void UpdateItem(IShellFolder* pDesktop, const std::wstring& rsFullPath)
{
    PIDLIST_RELATIVE pIDL;

    if (SUCCEEDED(pDesktop->ParseDisplayName(NULL, NULL, (LPWSTR)rsFullPath.c_str(), NULL, &pIDL, NULL)))
    {
        SHChangeNotify(SHCNE_UPDATEITEM, SHCNF_IDLIST|SHCNF_NOTIFYRECURSIVE|SHCNF_FLUSH, pIDL, NULL);

        ILFree(pIDL);
    }
}

Andrew Brock wrote:

At a guess tho, I would say it is because you didn't declare it as a virtual function.

 

In the header file it should be declared as virtual void OnInitialUpdate();

m_ListDrive = (CListCtrl *)GetDlgItem(IDC_MY_LIST); //CListCtrl is whatever control type it is, IDC_MY_LIST is the control ID set in the properties window in the dialog editor.
m_ListDrive->SetExtendedStyle(LVS_EX_FULLROWSELECT);