Owner draw combo drop down list does not retain the aero style.

#define WIN32_LEAN_AND_MEAN
#define UNICODE 1

#include <windows.h>
#include <commctrl.h>

#include "resource.h"

HINSTANCE hInst;

#define XBITMAP 48
#define YBITMAP 48

#define BUFFER MAX_PATH

HBITMAP hbmpPencil, hbmpCrayon, hbmpMarker, hbmpPen, hbmpFork;
HBITMAP hbmpPicture, hbmpOld;

void AddItem(HWND hwnd, PTSTR pstr, HBITMAP hbmp)
{
    int lbItem;

    lbItem = SendMessage(hwnd, LB_ADDSTRING, 0, (LPARAM)pstr);
    SendMessage(hwnd, LB_SETITEMDATA, (WPARAM)lbItem, (LPARAM)hbmp);
}


void AddComboItem(HWND hwnd, PTSTR pstr, HBITMAP hbmp)
{
    int lbItem;
    lbItem = SendMessage(hwnd, CB_ADDSTRING, 0, (LPARAM)pstr);
    SendMessage(hwnd, CB_SETITEMDATA, (WPARAM)lbItem, (LPARAM)hbmp);
}





INT_PTR CALLBACK DlgDrawProc(HWND hDlg, UINT message,
        UINT wParam, LONG lParam)
{
    HWND hListBox;
    PMEASUREITEMSTRUCT pmis;
    PDRAWITEMSTRUCT pdis;
    HDC hdcMem;
       HBITMAP hbmp;
    TCHAR achBuffer[BUFFER];
    size_t cch;
    int yPos;
    int lbItem;
    TEXTMETRIC tm;
    RECT rcBitmap;
    HRESULT hr;

    switch (message)
    {
         case WM_INITDIALOG:

            // Load the bitmaps. g_hInst is the global HINSTANCE handle.
            hbmpPencil = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_PENCIL));
            hbmpCrayon = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_CRAYON));
            hbmpMarker = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_MARKER));
            hbmpPen = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_PEN));
            hbmpFork = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_FORK));

            // Retrieve the list box handle.
            //hListBox = GetDlgItem(hDlg, IDC_LIST_STUFF);

            // Initialize the list box text and associate a bitmap
            // with each list box item.
           /*
            AddItem(hListBox, L"pencil", hbmpPencil);
            AddItem(hListBox, L"crayon", hbmpCrayon);
            AddItem(hListBox, L"marker", hbmpMarker);
            AddItem(hListBox, L"pen",    hbmpPen);
            AddItem(hListBox, L"fork",   hbmpFork);
            SetFocus(hListBox);
            SendMessage(hListBox, LB_SETCURSEL, 0, 0);
*/

            HWND hCombo;
            hCombo = GetDlgItem(hDlg, IDC_COMBO1);
            AddComboItem(hCombo, L"pencil", hbmpPencil);
            AddComboItem(hCombo, L"crayon", hbmpCrayon);
            AddComboItem(hCombo, L"marker", hbmpMarker);
            AddComboItem(hCombo, L"pen",    hbmpPen);
            AddComboItem(hCombo, L"fork",   hbmpFork);

            return TRUE;

        case WM_MEASUREITEM:

            pmis = (PMEASUREITEMSTRUCT) lParam;

            // Set the height of the list box items.
            pmis->itemHeight = YBITMAP;

            return TRUE;

        case WM_DRAWITEM:

            pdis = (PDRAWITEMSTRUCT) lParam;

            // If there are no list box items, skip this message.
            if (pdis->itemID == -1)
            {
                break;
            }

            // Draw the bitmap and text for the list box item. Draw a
            // rectangle around the bitmap if it is selected.
            switch (pdis->itemAction)
            {
                case ODA_SELECT:
                case ODA_DRAWENTIRE:

                    // Draw the bitmap associated with the item.
                    //
                    // Get the item bitmap.
                    hbmpPicture = (HBITMAP)SendMessage(pdis->hwndItem,
                        CB_GETITEMDATA, pdis->itemID, 0);

                    // Create a compatible device context.
                    hdcMem = CreateCompatibleDC(pdis->hDC);

                    // Select the item bitmap into the compatible device
                    // context and save the old bitmap.
                    hbmpOld = (HBITMAP) SelectObject(hdcMem, hbmpPicture);

                    // Copy the bitmap into the compatible device context.
                    BitBlt(pdis->hDC,
                        pdis->rcItem.left, pdis->rcItem.top,
                        pdis->rcItem.right - pdis->rcItem.left,
                        pdis->rcItem.bottom - pdis->rcItem.top,
                        hdcMem, 0, 0, SRCCOPY);

                    // Draw the string associated with the item.
                    //
                    // Get the item string from the list box.
                    SendMessage(pdis->hwndItem, CB_GETLBTEXT,
                        pdis->itemID, (LPARAM)achBuffer);

                    // Get the metrics for the current font.
                    GetTextMetrics(pdis->hDC, &tm);

                    // Calculate the vertical position for the item string
                    // so that the string will be vertically centered in the
                    // item rectangle.
                    yPos = (pdis->rcItem.bottom + pdis->rcItem.top -
                        tm.tmHeight) / 2;

                    // Get the character length of the item string.
//                    hr = StringCchLength(achBuffer, BUFFER, &cch);
                    //if (FAILED(hr))
                    {
                        cch = wcslen(achBuffer);
                        // TODO: Handle error.
                    }

                    // Draw the string in the item rectangle, leaving a six
                    // pixel gap between the item bitmap and the string.
                    TextOut(pdis->hDC, XBITMAP + 6, yPos, achBuffer, cch);

                    // Clean up.
                    SelectObject(hdcMem, hbmpOld);
                    DeleteDC(hdcMem);

                    // Is the item selected?
                    if (pdis->itemState & ODS_SELECTED)
                    {
                        // Set RECT coordinates to surround only the
                        // bitmap.
                        rcBitmap.left = pdis->rcItem.left;
                        rcBitmap.top = pdis->rcItem.top;
                        rcBitmap.right = pdis->rcItem.left + XBITMAP;
                        rcBitmap.bottom = pdis->rcItem.top + YBITMAP;

                        // Draw a rectangle around bitmap to indicate
                        // the selection.
                        //DrawFocusRect(pdis->hDC, &rcBitmap);
                        DrawFocusRect(pdis->hDC, &rcBitmap);
                    }
                    break;

                case ODA_FOCUS:

                    // Do not process focus changes. The focus caret
                    // (outline rectangle) indicates the selection.
                    // The IDOK button indicates the final
                    // selection.
                    break;
            }
            return TRUE;

        case WM_COMMAND:

            switch (LOWORD(wParam))
            {
                case IDC_BTN_TEST:
                    // Get the selected item's text.
                    lbItem = SendMessage(GetDlgItem(hDlg, IDC_COMBO1),
                        CB_GETCURSEL, 0, 0);

                    // Get the selected item's bitmap.
                    hbmp = (HBITMAP) SendMessage(GetDlgItem(hDlg, IDC_COMBO1),
                         CB_GETITEMDATA, lbItem, 0);


                    // trivial test to see that we can compare the ITEMDATA of an item
                    // to some arbitrary  thing. In this case, I'm checking to see if the image is
                    // a particular one.
                    if (hbmp != hbmpFork)
                    {
                        MessageBox(hDlg, L"Try again!", L"Oops", MB_OK);
                        return FALSE;
                    }
                    else
                    {
                        MessageBox(hDlg, L"You're right!", L"Congratulations.", MB_OK);

                      // Fall through.
                    }

                case IDCANCEL:

                    // Destroy the dialog box.

                    EndDialog(hDlg, TRUE);
                    return TRUE;

                default:

                    return FALSE;
            }

        case WM_DESTROY:

            // Free the bitmap resources.
            DeleteObject(hbmpPencil);
            DeleteObject(hbmpCrayon);
            DeleteObject(hbmpMarker);
            DeleteObject(hbmpPen);
            DeleteObject(hbmpFork);

            return TRUE;

        default:
            return FALSE;

    }
    return FALSE;
}



int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
    hInst = hInstance;
    InitCommonControls();

    // The user interface is a modal dialog box
    return DialogBox(hInstance, MAKEINTRESOURCE(DLG_MAIN), NULL, (DLGPROC)DlgDrawProc);
}

// Generated by ResEdit 1.5.11
// Copyright (C) 2006-2012
// http://www.resedit.net

#include <windows.h>
#include <commctrl.h>
#include <richedit.h>
#include "resource.h"




//
// Bitmap resources
//
LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDB_CRAYON         BITMAP         "bitmap2.bmp"


LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDB_FORK           BITMAP         "bitmap5.bmp"


LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDB_MARKER         BITMAP         "bitmap3.bmp"


LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDB_PEN            BITMAP         "bitmap4.bmp"


LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDB_PENCIL         BITMAP         "bitmap1.bmp"



//
// Dialog resources
//
LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
DLG_MAIN DIALOGEX 6, 5, 194, 84
STYLE DS_3DLOOK | DS_CENTER | DS_SETFONT | WS_CAPTION | WS_VISIBLE | WS_GROUP | WS_THICKFRAME | WS_SYSMENU
CAPTION "Code::Blocks Template Dialog App"
FONT 8, "Tahoma", 0, 0, 1
{
    PUSHBUTTON      "&Test", IDC_BTN_TEST, 67, 62, 46, 15
    PUSHBUTTON      "&Quit", IDC_BTN_QUIT, 141, 62, 46, 15
    COMBOBOX        IDC_COMBO1, 7, 7, 180, 30, CBS_DROPDOWNLIST | CBS_HASSTRINGS | CBS_OWNERDRAWFIXED
}



//
// Manifest resources
//
LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
1                  RT_MANIFEST    ".\\manifest.xml"

#ifndef IDC_STATIC
#define IDC_STATIC (-1)
#endif

#define DLG_MAIN                                101
#define IDB_PENCIL                              103
#define IDB_CRAYON                              105
#define IDB_MARKER                              107
#define IDB_PEN                                 109
#define IDB_FORK                                111
#define IDC_COMBO1                              1000
#define IDC_BTN_TEST                            1001
#define IDC_BTN_QUIT                            1002

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
  <dependency>
    <dependentAssembly>
      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
    </dependentAssembly>
  </dependency>
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
    <security>
      <requestedPrivileges>
        <requestedExecutionLevel
          level="asInvoker"
          uiAccess="false"/>
      </requestedPrivileges>
    </security>
  </trustInfo>
</assembly>