VisualStudio插件开发——在C++项目中获取目录路径

也许这会帮助其他有同样问题的人:
http://social.msdn.microsoft.com/forums/en-US/vsx/thread/bd738463-ba24-4880-beea-f3ec110d981e

// Subscribe to the SVsShellMonitorSelection service somewhere:  
public void mySetupMethod()  
{  
     IVsMonitorSelection monitorSelection = 
     (IVsMonitorSelection)Package.GetGlobalService(
     typeof(SVsShellMonitorSelection));     
     monitorSelection.AdviseSelectionEvents(this, out cookie);    
}  

// This class (as used in AdviseSelection) must implement the IVsSelectionEvents interface  
// To get the folder path use the following  
public int OnSelectionChanged(IVsHierarchy pHierOld, uint itemidOld,   
  IVsMultiItemSelect pMISOld, ISelectionContainer pSCOld,   
  IVsHierarchy pHierNew, uint itemidNew, IVsMultiItemSelect pMISNew, ISelectionContainer pSCNew)  
{  
  string fullPath;  
  // Get the full path
  pHierNew.GetCanonicalName(itemidNew, out fullPath);  

  // Do something with the path...  
  return VSConstants.S_OK;  
}