it's my code, so few comments

code:

PDIB CEditImageDlg: ibOpenFile(CString szFile){	HFILE fh;	DWORD dwLen, dwBits;	PDIB pdib;	LPVOID p;	OFSTRUCT of;#if defined(WIN32) | | defined (_WIN32)#define GetCurrentInstance() GetModuleHandle(NULL)#else#define GetCurrentInstance() (HINSTANCE)SELECTOROF((LPVOID)&of)#endif	fh = OpenFile(szFile, &of, OF_READ);	if(fh == -1)	{		HRSRC h;		h = FindResource(GetCurrentInstance(), szFile, RT_BITMAP);#if defined(WIN32) | | defined(_WIN32)		if(h)			return (PDIB)LockResource(LoadResource(GetCurrentInstance(), h));#else		if(h)			fh = AccessResource(GetCurrentInstance(), h);#endif	}	if(fh == -1)		return NULL;	pdib = DibReadBitmapInfo(fh);	if(!pdib)		return NULL;	dwBits = pdib->biSizeImage;	dwLen = pdib->biSize + DibPaletteSize(pdib) + dwBits;	p = GlobalReAllocPtr(pdib, dwLen, 0);	if(!p)	{		GlobalFreePtr(pdib);		pdib = NULL;	}	else	{		pdib = (PDIB)p;	}	if(pdib)	{		_hread(fh, (LPBYTE)pdib + (UINT)pdib->biSize + DibPaletteSize(pdib), dwBits);	}	_lclose(fh);	return pdib;}PDIB CEditImageDlg: ibReadBitmapInfo(HFILE fh){	DWORD off;	HANDLE hbi = NULL;	int size;	int i;	int nNumColors;	RGBQUAD FAR *pRgb;	BITMAPINFOHEADER bi;	BITMAPCOREHEADER bc;	BITMAPFILEHEADER bf;	PDIB pdib;	if(fh == -1)		return NULL;	off = _llseek(fh, 0L, SEEK_CUR);	if(sizeof(bf) != _lread(fh, (LPSTR)&bf, sizeof(bf)))		return FALSE;	if(bf.bfType != BFT_BITMAP)	{		bf.bfOffBits = 0L;		_llseek(fh, off, SEEK_SET);	}	if(sizeof(bi) != _lread(fh, (LPSTR)&bi, sizeof(bi)))		return FALSE;	switch(size = (int)bi.biSize)	{	default:	case sizeof(BITMAPINFOHEADER):		break;	case sizeof(BITMAPCOREHEADER):		bc = *(BITMAPCOREHEADER*)&bi		bi.biSize = sizeof(BITMAPINFOHEADER);		bi.biWidth = (DWORD)bc.bcWidth;		bi.biHeight = (DWORD)bc.bcHeight;		bi.biPlanes = (UINT)bc.bcPlanes;		bi.biBitCount = (UINT)bc.bcBitCount;		bi.biCompression = BI_RGB;		bi.biSizeImage = 0;		bi.biXPelsPerMeter = 0;		bi.biYPelsPerMeter = 0;		bi.biClrUsed = 0;		bi.biClrImportant = 0;		_llseek(fh, (LONG)sizeof(BITMAPCOREHEADER)-sizeof(BITMAPINFOHEADER), SEEK_CUR);		break;	}	nNumColors = DibNumColors(&bi);#if 0	if(bi.biSizeImage == 0)		bi.biSizeImage = DibSizeImage(&bi);	if(bi.biClrUsed == 0)		bi.biClrUsed = DibNumColors(&bi);#else	FixBitmapInfo(&bi);#endif	pdib = (PDIB)GlobalAllocPtr(GMEM_MOVEABLE, (LONG)bi.biSize + nNumColors * sizeof(RGBQUAD));	if(!pdib)		return NULL;	*pdib = bi;	pRgb = DibColors(pdib);	if(nNumColors)	{		if(size == sizeof(BITMAPCOREHEADER))		{			_lread(fh, (LPVOID)pRgb, nNumColors * sizeof(RGBTRIPLE));			for(i = nNumColors - 1; i >=0; i--)			{				RGBQUAD rgb;				rgb.rgbRed = ((RGBTRIPLE FAR*)pRgb).rgbtRed;<BR>				rgb.rgbBlue = ((RGBTRIPLE FAR*)pRgb).rgbtBlue;<BR>				rgb.rgbGreen = ((RGBTRIPLE FAR*)pRgb).rgbtGreen;<BR>				rgb.rgbReserved = (BYTE)0;<BR>			}<BR>		}<BR>		else<BR>			_lread(fh, (LPVOID)pRgb, nNumColors * sizeof(RGBQUAD));<BR>	}<BR>	if(bf.bfOffBits != 0L)<BR>		_llseek(fh, off + bf.bfOffBits, SEEK_SET);<P>	//m_ColorUsed = nNumColors;<BR>	//UpdateData(FALSE);<P>	return pdib;<BR>}<BR></pre><HR></BLOCKQUOTE><P>for hard coded:<P><BLOCKQUOTE><font size="1" face="Verdana, Arial">code:</font><HR><pre><BR>		CPaintDC dc(this); // device context for painting<BR>		HBITMAP hbitmap = ::LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_BITMAP1));<P>		HDC hMemDC = ::CreateCompatibleDC(NULL);<P>		SelectObject(hMemDC, hbitmap);<P>		::StretchBlt(dc.m_hDC, 45, 175, 200, 120, hMemDC, 0, 0, 200, 120, SRCCOPY);<P>		: <IMG SRC="http://www.gamedev.net/community/forums/ubb/biggrin.gif">eleteDC(hMemDC);<BR>		: <IMG SRC="http://www.gamedev.net/community/forums/ubb/biggrin.gif">eleteObject(hbitmap);<P></pre><HR></BLOCKQUOTE><P>That's about the MFC manner……….check out the functions I used, and see what you can change. The best way i think is the first, because it's easier to make changes (which I will show you if you want), and to move……..and it loads every bmp file….<P>Hmmmm…..<P><BR>There are also a lot of other manners. Damn, too many to suit the needs.<P>——————<BR>Dance with me……