mfc - IFileDialog 或 SHBrowseForFolder：如何打开显示“计算机”的内容，最好不显示左侧的桌面等？

Question

此代码的任何一个版本都可以正常工作，但我的磁盘实用程序仅适用于物理文件夹，而不适用于 Workgroup 之类的东西。有什么方法可以将其限制为实际的文件系统实体？

这是我当前的 IFileDialog 版本：

  IFileDialog *pfd;
  if ( CoCreateInstance( CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER,
                         IID_PPV_ARGS( &pfd ) ) != S_OK ) {
       AKS( AKSWarn, "CoCreateInstance() failed" );
       return;
  }

  DWORD dwOptions;
  pfd->GetOptions( &dwOptions );
  pfd->SetOptions( dwOptions | FOS_PICKFOLDERS );

  if ( pfd->Show( NULL ) != S_OK ) {
      AKS( AKSWarn, "IFileDialog::Show() failed" );
      pfd->Release();
      return;
  }

  IShellItem *psi;
  if ( pfd->GetResult( &psi ) != S_OK ) {
      AKS( AKSWarn, "IFileDialog::GetResult() failed" );
      pfd->Release();
      return;
  }

  LPWSTR pwcsChoice;
  if ( psi->GetDisplayName( SIGDN_DESKTOPABSOLUTEPARSING,
                            &pwcsChoice ) != S_OK ) {
      AKS( AKSWarn, "IFileDialog::GetResult() failed" );
      psi->Release();
      pfd->Release();
      return;
  }

  char szChoice[ 500 ];
  wcstombs( szChoice, pwcsChoice, sizeof( szChoice ) );
  peditRoot->SetWindowText( szChoice );

  CoTaskMemFree( pwcsChoice );
  psi->Release();
  pfd->Release();

SHBrowseForFolder() 是使用我从 MSFT 网站获得的包装函数调用的：

static bool GetFolder( string& folderpath, const char* szCaption = NULL, 
                       HWND hOwner = NULL ) {
   bool retVal = false;

   // The BROWSEINFO struct tells the shell 
   // how it should display the dialog.
   BROWSEINFO bi = { 0 };

   bi.ulFlags   = BIF_USENEWUI;
   bi.hwndOwner = hOwner;
   bi.lpszTitle = szCaption;

   // must call this if using BIF_USENEWUI
   ::OleInitialize( NULL );

   // Show the dialog and get the itemIDList for the 
   // selected folder.
   LPITEMIDLIST pIDL = ::SHBrowseForFolder( &bi );

   if ( pIDL ) {
      char szBuf[_MAX_PATH] = { '\0' };
      if ( ::SHGetPathFromIDList( pIDL, szBuf ) ) {

         // Set the string value.
         folderpath = szBuf;
         retVal     = true;
      } else
      SCWinUtilMessageBoxVA( hOwner, "Error Browsing", MB_OK,
                "This app can only work with actual disks or folders, not "
                "Control Panel, Workgroup, etc." );


      // free the item id list
      CoTaskMemFree( pIDL );
   }

   ::OleUninitialize();

   return retVal;
}

堆栈溢出抱怨我提供了太多代码。所以我必须在底部添加一些文本来填充它，显然。堆栈溢出抱怨我提供了太多代码。所以我必须在底部添加一些文本来填充它，显然。堆栈溢出抱怨我提供了太多代码。所以我必须在底部添加一些文本来填充它，显然。堆栈溢出抱怨我提供了太多代码。所以我必须在底部添加一些文本来填充它，显然。

标签： mfc