HOWTO: Get additional include directories of Visual C++ project from an add-in

HOWTO: Get additional include directories of Visual C++ project from an add-in

Author:	Carlos J. Quintero (Microsoft MVP)	Applies to:	Microsoft Visual Studio 2005
Date:	January 2014		Microsoft Visual Studio 2008
			Microsoft Visual Studio 2010
			Microsoft Visual Studio 2012
			Microsoft Visual Studio 2013

Introduction

Visual C++ projects have standard include directories for each configuration / platform, and additional include directories. This article provides the sample code to get the additional include directories from an add-in. To get the standard include directories, see the article HOWTO: Get standard include directories of Visual C++ project from an add-in.

More Information

To get specific Visual C++ project information from an add-in, you need to add a reference to the Microsoft.VisualStudio.VCProjectEngine.dll assembly. There are specific versions of this assembly for each Visual Studio version:

8.0.0.0 for Visual Studio 2005
9.0.0.0 for Visual Studio 2008
10.0.0.0 for Visual Studio 2010
11.0.0.0 for Visual Studio 2012
12.0.0.0 for Visual Studio 2013

Once added, you can use the following code to get the additional include directories of each configuration / platform. The add-in, once loaded, shows the additional include directories of the first project of the solution:

Language: C#

Copy Code (IE only)

using System;
using Extensibility;
using EnvDTE;
using EnvDTE80;
using System.Windows.Forms;

namespace MyAddin
{
   public class Connect : IDTExtensibility2
   {
      private DTE2 _applicationObject;
      private AddIn _addInInstance;

      public void OnConnection(object application, ext_ConnectMode connectMode, object addInInst, ref Array custom)
      {
         _applicationObject = (DTE2)application;
         _addInInstance = (AddIn)addInInst;

         switch (connectMode)
         {
            case ext_ConnectMode.ext_cm_Startup:
               // Do nothing. OnStartupComplete will be called
               break;

            case ext_ConnectMode.ext_cm_AfterStartup:

               InitializeAddIn();
               break;
         }
      }

      public void OnStartupComplete(ref Array custom)
      {
         InitializeAddIn();
      }

      private void InitializeAddIn()
      {
         EnvDTE.Project project;

         try
         {
            project = _applicationObject.Solution.Projects.Item(1);

            ShowAdditionalIncludeDirectories(project);
         }
         catch (Exception ex)
         {
            MessageBox.Show(ex.ToString());
         }
      }

      private void ShowAdditionalIncludeDirectories(EnvDTE.Project project)
      {
         Microsoft.VisualStudio.VCProjectEngine.VCProject proj;
         Microsoft.VisualStudio.VCProjectEngine.VCCLCompilerTool compilerTool;
         Microsoft.VisualStudio.VCProjectEngine.IVCCollection toolsCollection;
         Microsoft.VisualStudio.VCProjectEngine.IVCCollection configurationsCollection;

         proj = (Microsoft.VisualStudio.VCProjectEngine.VCProject)project.Object;

         configurationsCollection = (Microsoft.VisualStudio.VCProjectEngine.IVCCollection)proj.Configurations;

         foreach (Microsoft.VisualStudio.VCProjectEngine.VCConfiguration configuration in configurationsCollection)
         {
            toolsCollection = (Microsoft.VisualStudio.VCProjectEngine.IVCCollection)configuration.Tools;

            foreach (Object toolObject in toolsCollection)
            {
               if (toolObject is Microsoft.VisualStudio.VCProjectEngine.VCCLCompilerTool)
               {
                  compilerTool = (Microsoft.VisualStudio.VCProjectEngine.VCCLCompilerTool)toolObject;

                  MessageBox.Show(configuration.Name + ": " + compilerTool.AdditionalIncludeDirectories);

                  break;
               }
            }
         }
      }

      public void OnDisconnection(ext_DisconnectMode disconnectMode, ref Array custom)
      {
      }

      public void OnAddInsUpdate(ref Array custom)
      {
      }

      public void OnBeginShutdown(ref Array custom)
      {
      }
   }
}

HOWTO: Get standard include directories of Visual C++ project from an add-in

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