MFC Static上显示JPG图像，如何使图像大小自适应Static边框

来源：互联网发布：java里变量定义编辑：程序博客网时间：2024/06/14 12:28

void CJpgDlg::OnButton1() {        IStream *m_pStream;        IPicture *m_pPictrue;        OLE_XSIZE_HIMETRIC m_JPGWidth;        OLE_YSIZE_HIMETRIC m_JPGHeight;        HGLOBAL hMem;        CFile file;        if (!file.Open("c:\\a0.bmp",CFile::modeReadWrite))        {                MessageBox("open file failed!");                return;        }                DWORD len=file.GetLength();         //这边改成内存图片数据的长度        hMem=GlobalAlloc(GMEM_MOVEABLE,len);        LPVOID pData=NULL;        pData=GlobalLock(hMem);        file.ReadHuge(pData,len);           //把这里的从文件读数据，改成从内存读数据        file.Close();                        GlobalUnlock(hMem);        CreateStreamOnHGlobal(hMem,TRUE,&m_pStream);        OleLoadPicture(m_pStream,len,TRUE,IID_IPicture,(LPVOID*)&m_pPictrue);        m_pPictrue->get_Height(&m_JPGHeight);        m_pPictrue->get_Width(&m_JPGWidth);        CRect lpRec;         GetDlgItem(IDC_STATIC1)->GetWindowRect(&lpRec);         ScreenToClient(&lpRec);        m_pPictrue->Render(GetDC()->m_hDC,lpRec.left,lpRec.top,lpRec.Width(),lpRec.Height(),0,m_JPGHeight,m_JPGWidth,-m_JPGHeight,NULL);}

原文地址：http://bbs.csdn.net/topics/380267452

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