Drawing Bitmap on to screen using CRenderTarget::DrawBitmap and Byte Array (instead of file)

BOOL COSMCtrl::DrawTile(CRenderTarget* pRenderTarget, const CD2DRectF& rTile, int nTileX, int nTileY)
{
  //What will be the return value from this function (assume the worst)
  BOOL bSuccess = FALSE;

  //Form the path to the cache file which we want to draw
  int nZoom = static_cast<int>(m_fZoom);
  CString sFile(GetTileCachePath(m_sCacheDirectory, nZoom, nTileX, nTileY, FALSE));

  //Get the fractional value of the zoom
  double fInt = 0;
  double fFractionalZoom = modf(m_fZoom, &fInt);

  //Try to obtain the standard tile
  CD2DBitmap bitmap(pRenderTarget, sFile);

// I have a Byte Array. I should pass the byte array instead of file

  //Determine how the tile should be draw
  BOOL bStandardTile = FALSE;
  if (fFractionalZoom == 0 && SUCCEEDED(bitmap.Create(pRenderTarget)))
   bStandardTile = TRUE;

  //Load up the image from disk and display it if we can
  if (bStandardTile)
  {
    //Draw the image to the screen at the specified position
    pRenderTarget->DrawBitmap(&bitmap, rTile, 1.0);
    bSuccess = TRUE;
  }

return bSuccess;
}

1. I am not allowed to save the byte array to disk (as image).

2. I have tried using the other constructor of CD2DBitmap which accepts CRenderTarget and HBITMAP. but of no use