调用windows api SHMultiFileProperties 显示多文件的汇总属性

 1 // csFilePath 文件路径，以|分隔。 nPathes 路径数。
 2 void CGetDirectoryDlg::ShowPropertiesByPath(CString csFilePath,int nPathes)
 3 {
 4     if(csFilePath.IsEmpty())
 5     {
 6         return;
 7     }
 8     //单个文件属性
 9     if(nPathes == 1)
10     {
11         SHELLEXECUTEINFO sei;
12         ZeroMemory(&sei,sizeof(sei));
13         sei.cbSize = sizeof(SHELLEXECUTEINFO);
14         sei.hwnd = m_hWnd;
15         sei.lpParameters = NULL;
16         sei.nShow = 0;
17         sei.lpIDList =  NULL;
18         sei.hInstApp = 0;
19         sei.lpFile = csFilePath;//要显示属性的文件
20         sei.lpVerb = L"properties";
21         sei.fMask = SEE_MASK_IDLIST | SEE_MASK_NOCLOSEPROCESS | SEE_MASK_INVOKEIDLIST | 
22 
23 SEE_MASK_FLAG_NO_UI;
24         ShellExecuteEx(&sei); 
25         return;
26     }
27 
28     //多个文件属性
29     LPITEMIDLIST *pidlDrives = (LPITEMIDLIST *)malloc(sizeof(LPITEMIDLIST)*nPathes);
30     IShellFolder* psfDesktop;
31     IDataObject* pData;
32     HRESULT hr;
33     ULONG chEaten=0, dwAttributes=0;
34     int i=0;
35     hr = SHGetSpecialFolderLocation(NULL, CSIDL_DRIVES, pidlDrives);
36     if (SUCCEEDED(hr))
37     {
38         hr = SHGetDesktopFolder(&psfDesktop);
39         do{
40             CString currentFilePath;
41             int delimitatorPosition;
42             delimitatorPosition = csFilePath.Find(L‘|‘);
43             if(delimitatorPosition == -1)
44             {
45                 delimitatorPosition = csFilePath.GetLength(); 
46             }
47             currentFilePath = csFilePath.Left(delimitatorPosition);
48             csFilePath.Delete(0, delimitatorPosition + 1);
49             psfDesktop->ParseDisplayName(NULL,
50                 NULL,
51                 currentFilePath.GetBuffer(),
52                 &chEaten,
53                 (LPITEMIDLIST*)&pidlDrives[i],
54                 &dwAttributes);
55             i++;
56         }while(!csFilePath.IsEmpty() && i<nPathes);
57 
58         if (SUCCEEDED(hr))
59         {
60             hr = psfDesktop->GetUIObjectOf(NULL, 
61                 nPathes, 
62                 (LPCITEMIDLIST*)pidlDrives,
63                 IID_IDataObject, 
64                 NULL, 
65                 (void**)&pData);
66             if (SUCCEEDED(hr))
67             {
68                 CoInitialize(NULL);
69                 hr = SHMultiFileProperties(pData,0);
70                 if(SUCCEEDED(hr))
71                 {
72                     pData->Release();
73                 }
74                 CoUninitialize();
75             }
76             if(psfDesktop != NULL)
77             {
78                 psfDesktop->Release();
79             }
80         } 
81         for(i=0;i<nPathes;i++)
82         {
83             ILFree(pidlDrives[i]);
84         }
85     }
86 }
87