Загрузка bmp из файла

case IDB_Button5:
{
        TCHAR szFile[260]; 
        OPENFILENAME ofn;
 
        ZeroMemory(&ofn, sizeof(ofn));
        ofn.lStructSize = sizeof(ofn);
        ofn.hwndOwner = D1hWnd;
        ofn.lpstrFile = szFile;
        ofn.lpstrFile[0] = '\0';
        ofn.nMaxFile = sizeof(szFile);
        ofn.lpstrFilter = _T("Bitmap files(*.bmp)\0*.bmp\0");
        ofn.nFilterIndex = 1;
        ofn.lpstrFileTitle = NULL;
        ofn.nMaxFileTitle = 0;
        ofn.lpstrInitialDir = NULL;
        ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
        GetOpenFileName(&ofn);
        if (ofn.lpstrFile=='\0') {break;}
        PAINTSTRUCT ps;
        HBITMAP hBitmap;
        BITMAP bm;
        HDC hDC;
        HDC hMemDC;
    
        hDC = BeginPaint (hWnd, &ps);
        hMemDC = CreateCompatibleDC (hDC);
        hBitmap = (HBITMAP)LoadImage (NULL,ofn.lpstrFile, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
        GetObject (hBitmap, sizeof(BITMAP), &bm);
        SelectObject (hMemDC, hBitmap);
        BitBlt (hDC, 0, 0, bm.bmWidth, bm.bmHeight, hMemDC, 0, 0, SRCCOPY);
        DeleteDC (hMemDC);
        ReleaseDC (hWnd, hDC);
        DeleteObject (hBitmap);
        EndPaint (hWnd, &ps);
        UpdateWindow(hWnd);
                break;
}

hDC = BeginPaint (hWnd, &ps);
EndPaint (hWnd, &ps);

hDC = GetDC(hWnd);
ReleaseDC (hWnd, hDC);