求BMP文件打开，保存的程序

Question

很急，在线等待，就只需要最基本的文件打开，保存。VC程序。跪求！！

Answer 1

如果你不修改，保存似乎没有意义打开显示的话就简单了GDI实现：HBITMAP LoadPicture(CString mFile)
{
CString pFSize;
    WCHAR wpath[MAX_PATH];
    MultiByteToWideChar(CP_ACP, 0, mFile, -1, wpath, MAX_PATH);    IPicture* pPic;
    OleLoadPicturePath(wpath, NULL, NULL, NULL, IID_IPicture,(LPVOID*)&pPic);

if (pPic==NULL) return NULL;
    HBITMAP hPic = NULL;
    pPic->get_Handle((UINT*)&hPic); long nWidth=THUMWIDTH;
long nHeight=THUMHEIGHT; long mWid,mHei;
pPic->get_Height(&mHei);
pPic->get_Width(&mWid); HBITMAP hPicRet = (HBITMAP)CopyImage(hPic, IMAGE_BITMAP, nWidth, nHeight , LR_COPYDELETEORG); // Create Brushes for Border and BackGround
HBRUSH hBrushBorder=::CreateSolidBrush(RGB(192, 192, 192));
HBRUSH hBrushBk=::CreateSolidBrush(RGB(255, 255, 255)); // Border Size
RECT rcBorder;
rcBorder.left=rcBorder.top=0;
rcBorder.right=THUMWIDTH;
rcBorder.bottom=THUMHEIGHT; const float fRatio=(float)THUMHEIGHT/THUMWIDTH; int XDest, YDest, nDestWidth, nDestHeight;
// Calculate Rect to fit to canvas
const float fImgRatio=(float)mHei/mWid;
if(fImgRatio > fRatio)
{
nDestWidth=(THUMHEIGHT/fImgRatio);
XDest=(THUMWIDTH-nDestWidth)/2;
YDest=0;
nDestHeight=THUMHEIGHT;
}
else
{
XDest=0;
nDestWidth=THUMWIDTH;
nDestHeight=(THUMWIDTH*fImgRatio);
YDest=(THUMHEIGHT-nDestHeight)/2;
} CClientDC cdc(this);
HDC hDC=::CreateCompatibleDC(cdc.m_hDC);
HBITMAP bm = CreateCompatibleBitmap(cdc.m_hDC, THUMWIDTH, THUMHEIGHT);
HBITMAP pOldBitmapImage = (HBITMAP)SelectObject(hDC,bm);
// Draw Background
::FillRect(hDC, &rcBorder, hBrushBk); // Draw Border
::FrameRect(hDC, &rcBorder, hBrushBorder); HBITMAP hBmReturn= (HBITMAP)::SelectObject(hDC, pOldBitmapImage); CDC hdcSrc, hdcDst;   hdcSrc.CreateCompatibleDC(NULL);
   hdcDst.CreateCompatibleDC(NULL);   // Load the bitmaps into memory DC
   CBitmap* hbmSrcT = (CBitmap*) hdcSrc.SelectObject(hPicRet);
   CBitmap* hbmDstT = (CBitmap*) hdcDst.SelectObject(hBmReturn);   // This call sets up the mask bitmap.
   hdcDst.BitBlt(XDest,YDest,nDestWidth, nDestHeight, &hdcSrc,0,0,SRCCOPY);
   //hdcDst.StretchBlt(XDest,YDest,nDestWidth, nDestHeight, &hdcSrc,0,0,48,48,SRCCOPY); pOldBitmapImage = (HBITMAP)SelectObject(hdcDst.m_hDC,bm); // Release used DC and Object
DeleteDC(hDC);
DeleteObject(hBrushBorder);
DeleteObject(hBrushBk);    return pOldBitmapImage;}通过CBitmap的Attach可以把HBITMAP选入CBitmap，然后选入DC，再Bitblt就完事儿如果用GDI+，更方便Graphics g(pDC->m_hDC);
Bitmap bmp(L"c:\\xx.bmp");
g.DrawImage(&bmp, 0, 0);

Answer 2

我也不需要修改，直接保存一个BMP文件就可以了还有，本人很菜的，能不能哪个达人把打开BMP文件的实现，写具体点？