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it.cpp
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 2k
Category:

Windows Kernel

Development Platform:

Visual C++

it.cpp：Code Content
  1. // $$ClassType$$IT.cpp : Implementation of C$$ClassType$$IT
  2. #include "stdafx.h"
  3. #include "InfoTipTest.h"
  4. #include "$$ClassType$$IT.h"
  5. #include "shlobj.h"
  7. /////////////////////////////////////////////////////////////////////////////
  8. // C$$ClassType$$IT
  10. // IPersist methods
  12. STDMETHODIMP C$$ClassType$$IT::GetClassID(CLSID *pclsid)
  13. {
  14.     *pclsid = CLSID_$$ClassType$$IT;
  15.     return NOERROR;
  16. }
  18. // IPersistFile methods
  20. STDMETHODIMP C$$ClassType$$IT::Load(LPCOLESTR pcwszFileName, DWORD dwMode)
  21. {
  22.     lstrcpyW(_wszFileName, pcwszFileName);
  23.     return NOERROR;
  24. }
  26. // IQueryInfo methods
  28. STDMETHODIMP C$$ClassType$$IT::GetInfoTip(DWORD dwFlags, WCHAR **ppwszTip)
  29. {
  30.     IShellLink* psl;
  31.     HRESULT hres;
  32.     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, 
  33.         (void **)&psl);
  35.     if(SUCCEEDED(hres))
  36.     {
  37.         IPersistFile* ppf;
  38.         hres = psl->QueryInterface(IID_IPersistFile, (void**)&ppf);
  39.         if (SUCCEEDED(hres))
  40.         {
  41.             hres = ppf->Load(_wszFileName, 0);
  42.             if (SUCCEEDED(hres))
  43.             {
  44.                 TCHAR szTarget[MAX_PATH];
  46.                 hres = psl->GetPath(szTarget, MAX_PATH, NULL, 0);
  47.                 if (SUCCEEDED(hres))
  48.                 {
  49.                     WCHAR* pwszOut = new WCHAR[MAX_PATH];
  50.                     if (!pwszOut)
  51.                         hres = E_OUTOFMEMORY;
  52.                     else
  53.                     {
  54.                         MultiByteToWideChar(CP_ACP, 0, szTarget, -1, pwszOut, MAX_PATH);
  55.                         *ppwszTip = pwszOut;
  57.                         // Caller will free pszOut
  58.                     }
  59.                 }
  60.             }
  61.             ppf->Release();
  62.         }
  63.         psl->Release();
  64.     }
  66.     return hres;
  67. }
  69. STDMETHODIMP C$$ClassType$$IT::GetInfoFlags(DWORD *pdwFlags)
  70. {
  71.     *pdwFlags = 0;
  72.     return NOERROR;
  73. }