Bitmap image Refresh or Redraw Problem

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C++

MFC

I am building Windows CE 6.0 R3 image for VIA board.I have added Start Menu Banner(.bmp) displaying Windows CE to the Start Menu.

When i am scrolling the mouse or keyboard over the start menu, The banner gets erased.Its not refreshed.
I have tried the functions like RedrawWindow(),Invalidate(). but i can't be able to solve the problem. Here is the code related to draw start menu, can any one help me to redraw the start menu banner,

int StartMenu_DrawMenuItem(DRAWITEMSTRUCT *lpdis)
 { 
  LPSTMENUDATA lpst; 
  RECT rc; //HWND hwnd; 
  HICON hicon; 
  CStringRes szMenu(g_hInstance);
 
 if (!lpdis)
 {
  ASSERT(lpdis);
  return FALSE;
 }
 
 lpst = (LPSTMENUDATA)lpdis->itemData;
 if (!lpst)
{
 ASSERT(lpst);
 return FALSE;
}
// ASSERT(lpst->szDisplay);
CopyRect(&rc, &lpdis->rcItem);
if (lpst->idMenuCmd <= IDM_START_LAST_BANNER)
{
 rc.left += sizeSTPegasus.cx; // This is for the start menu banner.
}
 //This following lines are added by SGP for startmenu banner problem
 if (lpst->idMenuCmd == IDM_START_LOGOFF || lpst->idMenuCmd == IDM_START_SHUTDOWN)
 {
  rc.left += sizeSTPegasus.cx;
 }
// added upto this by SGP for startmenu banner problem

 switch (lpdis->itemAction)
 {
   case ODA_DRAWENTIRE:
   if (idFirstMenu == lpst->idMenuCmd)
   {
    CopyRect(&rcMenu, &lpdis->rcItem);
    rcMenu.right = rcMenu.left + sizeSTPegasus.cx; // sizeSTPegasus.cx --> bitmap image width
   }
  else if  (idLastMenu == lpst->idMenuCmd)
  {
    rcMenu.bottom = lpdis->rcItem.bottom;
 
    if (hbmSTPegasus) // hdmSTPegasus --> Bitmap image 
    {
        HDC hdcmem = CreateCompatibleDC(lpdis->hDC);
        if (hdcmem)
        {
            SelectObject(hdcmem, hbmSTPegasus);
 

            FillRect(lpdis->hDC, &rcMenu,
                     GetSysColorBrush(COLOR_ACTIVECAPTION));
 
            BitBlt(lpdis->hDC, 0, rcMenu.bottom - sizeSTPegasus.cy,
                   sizeSTPegasus.cx, sizeSTPegasus.cy, hdcmem, 0, 0,
                   SRCCOPY);
            //RedrawWindow(lpdis->hwndItem,NULL,NULL,RDW_INVALIDATE|RDW_UPDATENOW);
            DeleteDC(hdcmem);
        }
    }
}
// drop into color selects...
case ODA_SELECT: // Problem occurs here. when i am selecting menu's the bitmap image in the left side of the menu(start menu Banner) gets erased
if ((lpdis->itemState & ODS_SELECTED) && lpst->idMenuCmd)
{   
 HBRUSH hbrush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
 SetTextColor(lpdis->hDC, GetSysColor(COLOR_HIGHLIGHTTEXT));
 FillRect(lpdis->hDC, &rc, hbrush);
//RedrawWindow(lpdis->hwndItem,NULL,NULL,RDW_INVALIDATE|RDW_UPDATENOW);                             DeleteObject((HGDIOBJ)hbrush);                   
}
else
{
    HBRUSH hbrush = CreateSolidBrush(GetSysColor(COLOR_MENU));
    SetTextColor(lpdis->hDC, GetSysColor(COLOR_MENUTEXT));
    FillRect(lpdis->hDC, &rc, hbrush);
    DeleteObject((HGDIOBJ)hbrush);
}
break;
 
default:
  break;