No Display in VC++ MFC Windows

[KYAW KYAW OO]

I tried to show the memory image passed from unsigned char * in VC++ MFC Windows but I couldn't manage to see until now. Actually, it is working in the other SDK and functions for verification's purpose except display.

My code are as below and I hope some one will advise me to close the case as soon as possible.

bool Dlg::Start()
{
	LPCWSTR fileName = _T("C:\\test.bmp"); 
	greyMemImage = LoadBMPFromFile(fileName);

// Display Image or Pattern here for Passing Data is correct
   	VECTOR_BYTE vecByte;
    	FILE*		fpr = _wfopen(lpszFileName, L"rb");

	if (fpr == NULL)
	{
		return false;
	}

	long		lFileLength = _filelength(_fileno(fpr));
	vecByte.resize(lFileLength, 0);

	fread((void*)&(vecByte[0]), sizeof(unsigned char), lFileLength, fpr);
	fclose(fpr);
	fpr = NULL;

   	CDC*	pDC = GetDC();
    	LPBYTE	lpDIBBits = NULL;
    	LPBYTE	pBWImageData = &(greyMemImage [0]);		
                int	iColors = 0;
    	PBITMAPINFO		pbitmapinfo = NULL;
    	PBITMAPINFOHEADER	pbitmapinfoheader = NULL;
    	DWORD			cbdwColorTable = 0;
    	int			iMapMode = 0;        
    	if (m_hbmImage != NULL)
    	{
		DeleteObject (m_hbmImage);
		m_hbmImage = NULL;
    	}

	if (m_hdcImage != NULL)
	{
		DeleteDC (m_hdcImage);
		m_hdcImage = NULL;
	}

	pbitmapinfo = (PBITMAPINFO)(pBWImageData + sizeof(BITMAPFILEHEADER));
	pbitmapinfoheader = (PBITMAPINFOHEADER)(pBWImageData + sizeof(BITMAPFILEHEADER));
	
	iColors = 1 << (pbitmapinfoheader -> biBitCount);
	if (pbitmapinfoheader -> biBitCount >= 24)
		cbdwColorTable = 0;
	else
		cbdwColorTable = (1 << (pbitmapinfoheader -> biBitCount)) * sizeof(RGBQUAD);

	lpDIBBits = (LPBYTE)(pBWImageData + sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + cbdwColorTable);
	m_lImageWidth = (int)(pbitmapinfoheader -> biWidth);
	m_lImageHeight = (int)(pbitmapinfoheader -> biHeight);

	if (m_hdcImage == NULL)
		m_hdcImage = CreateCompatibleDC(pDC -> m_hDC);

	iMapMode = GetMapMode (pDC -> m_hDC);             // Obtain mapping mode
	SetMapMode (m_hdcImage, iMapMode);         // Set memory DC mapping mode

	if (m_hbmImage == NULL)
	{
		m_hbmImage = MyCreateBitmap(pDC -> m_hDC, pBWImageData, m_lImageWidth, m_lImageHeight, iColors);
		
	}

	SelectObject(m_hdcImage, m_hbmImage);

	SetStretchBltMode((HDC)m_hdcImage, (int)HALFTONE);
	StretchDIBits
	(
		(HDC)m_hdcImage, // handle of device context 
		(int)0, // x-coordinate of upper-left corner of dest. rect. 
		(int)0, // y-coordinate of upper-left corner of dest. rect. 
		(int)m_lImageWidth, // width of destination rectangle 
		(int)m_lImageHeight, // height of destination rectangle 
		(int)0, // x-coordinate of upper-left corner of source rect. 
		(int)0, // y-coordinate of upper-left corner of source rect. 
		(int)m_lImageWidth, // width of source rectangle 
		(int)m_lImageHeight, // height of source rectangle 
		(CONST VOID*)lpDIBBits, // address of bitmap bits 
		(CONST BITMAPINFO *)pbitmapinfo, // address of bitmap data 
		(UINT)DIB_RGB_COLORS, // usage 
		(DWORD)SRCCOPY // raster operation code 
	);

	ReleaseDC(pDC);

	InvalidateRect (NULL, TRUE);
	return true;
}

Thanks in advance