CRect rectLine1(0, 0, 68, 54);

CRect rectLine2(0, 32, 34, 59);

CString str;

CClientDC dc(this);

CDC MemDC;

MemDC.CreateCompatibleDC(&dc);

if (MemDC == NULL) return;

BITMAP bmpInfo;

CBitmap bitMap;

CPngImage pngImage;

pngImage.Load(IDB_PNG3);

bitMap.Attach(pngImage.Detach());

bitMap.GetBitmap(&bmpInfo);

MemDC.SelectObject(&bitMap);

m_BitmapButton[0] = new CBitmapButton();

m_BitmapButton[0]->CreateEx(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_NOPARENTNOTIFY,

_T("Button"), str, WS_CHILDWINDOW | WS_VISIBLE | BS_BITMAP | BS_PUSHBUTTON | BS_TEXT,

rectLine1, this, 2000);

m_BitmapButton[0]->GetDC()->StretchBlt(0, 0, rectLine1.right, rectLine1.bottom,

&MemDC, bmpInfo.bmWidth / 4 * 0, 0, bmpInfo.bmWidth / 4, bmpInfo.bmHeight, SRCCOPY);

MemDC.DeleteDC();

bitMap.DeleteObject();

OnInitDialog()에서 실행하는 부분인데 

버튼은 잘 생성되어 졌는데 버튼에 이미지가 안나옵니다. 어디가 잘못된건가요?