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isdtobj.cpp
资源名称：shell.rar　[点击查看]
上传用户：xhy777
上传日期：2007-02-14
资源大小：24088k
文件大小：4k
源码类别：

系统编程

开发平台：

Visual C++

isdtobj.cpp：源码内容
  1. #include "priv.h"
  2. #include "ishcut.h"
  4. STDMETHODIMP Intshcut::GetData(FORMATETC *pfmtetc, STGMEDIUM *pstgmed)
  5. {
  6.     HRESULT hr;
  8.     ZeroMemory(pstgmed, SIZEOF(*pstgmed));
  10.     if (pfmtetc->cfFormat == g_cfURL)
  11.         hr = TransferUniformResourceLocator(pfmtetc, pstgmed);
  12.     else if (pfmtetc->cfFormat == CF_TEXT)
  13.         hr = TransferText(pfmtetc, pstgmed);
  14.     else if (pfmtetc->cfFormat == g_cfFileDescA)
  15.         hr = TransferFileGroupDescriptorA(pfmtetc, pstgmed);
  16.     else if (pfmtetc->cfFormat == g_cfFileDescW)
  17.         hr = TransferFileGroupDescriptorW(pfmtetc, pstgmed);
  18.     else if (pfmtetc->cfFormat == g_cfFileContents)
  19.         hr = TransferFileContents(pfmtetc, pstgmed);
  20.     else
  21.         hr = DV_E_FORMATETC;
  23.     return hr;
  24. }
  26. STDMETHODIMP Intshcut::GetDataHere(FORMATETC *pfmtetc, STGMEDIUM *pstgpmed)
  27. {
  28.     return E_NOTIMPL;
  29. }
  31. STDMETHODIMP Intshcut::QueryGetData(FORMATETC *pfmtetc)
  32. {
  33.     HRESULT hr;
  35.     if ((pfmtetc->cfFormat == g_cfURL) ||
  36.         (pfmtetc->cfFormat == CF_TEXT) ||
  37.         (pfmtetc->cfFormat == g_cfFileDescA) ||
  38.         (pfmtetc->cfFormat == g_cfFileDescW))
  39.     {
  40.         hr = (pfmtetc->tymed & TYMED_HGLOBAL) ? S_OK : DV_E_TYMED;
  41.     }
  42.     else if (pfmtetc->cfFormat == g_cfFileContents)
  43.     {
  44.         if (pfmtetc->dwAspect == DVASPECT_COPY)
  45.             hr = (pfmtetc->tymed & TYMED_ISTREAM) ? S_OK : DV_E_TYMED;
  46.         else if ((pfmtetc->dwAspect == DVASPECT_CONTENT) || 
  47.                  (pfmtetc->dwAspect == DVASPECT_LINK))
  48.             hr = (pfmtetc->tymed & TYMED_HGLOBAL) ? S_OK : DV_E_TYMED;
  49.         else
  50.             hr = DV_E_FORMATETC;
  51.     }
  52.     else
  53.         hr = DV_E_FORMATETC;
  55.     return hr;
  56. }
  58. STDMETHODIMP Intshcut::GetCanonicalFormatEtc(FORMATETC *pfmtetcIn, FORMATETC *pfmtetcOut)
  59. {
  60.     HRESULT hr = QueryGetData(pfmtetcIn);
  61.     if (hr == S_OK)
  62.     {
  63.         *pfmtetcOut = *pfmtetcIn;
  65.         if (pfmtetcIn->ptd == NULL)
  66.             hr = DATA_S_SAMEFORMATETC;
  67.         else
  68.         {
  69.             pfmtetcIn->ptd = NULL;
  70.             ASSERT(hr == S_OK);
  71.         }
  72.     }
  73.     else
  74.         ZeroMemory(pfmtetcOut, SIZEOF(*pfmtetcOut));
  76.     return hr;
  77. }
  79. STDMETHODIMP Intshcut::SetData(FORMATETC *pfmtetc, STGMEDIUM *pstgmed, BOOL bRelease)
  80. {
  81.     return DV_E_FORMATETC;
  82. }
  84. STDMETHODIMP Intshcut::EnumFormatEtc(DWORD dwDirFlags, IEnumFORMATETC **ppiefe)
  85. {
  86.     if (dwDirFlags == DATADIR_GET)
  87.     {
  88.         FORMATETC rgfmtetc[] =
  89.         {
  90.             // the order here defines the accuarcy of rendering
  91.             { g_cfFileContents, NULL, DVASPECT_LINK,  0, TYMED_HGLOBAL },
  92.             { g_cfFileDescW,    NULL, DVASPECT_LINK, -1, TYMED_HGLOBAL },
  93.             { g_cfFileDescA,    NULL, DVASPECT_LINK, -1, TYMED_HGLOBAL },
  94.             { g_cfFileContents, NULL, DVASPECT_COPY,  0, TYMED_ISTREAM },
  95.             { g_cfFileDescW,    NULL, DVASPECT_COPY, -1, TYMED_HGLOBAL },
  96.             { g_cfFileDescA,    NULL, DVASPECT_COPY, -1, TYMED_HGLOBAL },
  97.             { g_cfFileContents, NULL, DVASPECT_CONTENT,  0, TYMED_HGLOBAL },
  98.             { g_cfFileDescW,    NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
  99.             { g_cfFileDescA,    NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
  100.             { g_cfURL,          NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
  101.             { CF_TEXT,          NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
  102.         };
  103.         return SHCreateStdEnumFmtEtc(ARRAYSIZE(rgfmtetc), rgfmtetc, ppiefe);
  104.     }
  105.     *ppiefe = NULL;
  106.     return E_NOTIMPL;
  107. }
  109. STDMETHODIMP Intshcut::DAdvise(FORMATETC *pfmtetc, DWORD dwAdviseFlags, IAdviseSink *piadvsink, DWORD *pdwConnection)
  110. {
  111.     *pdwConnection = 0;
  112.     return OLE_E_ADVISENOTSUPPORTED;
  113. }
  115. STDMETHODIMP Intshcut::DUnadvise( DWORD dwConnection)
  116. {
  117.     return OLE_E_ADVISENOTSUPPORTED;
  118. }
  120. STDMETHODIMP Intshcut::EnumDAdvise(IEnumSTATDATA **ppiesd)
  121. {
  122.     *ppiesd = NULL;
  123.     return OLE_E_ADVISENOTSUPPORTED;
  124. }