C# VCCLCompilerTool.AdditionalIncludeDirectories 添加附加包含目录

指定一个路径为附加包含目录

// 添加头文件目录
public void AdditionalCLCompiler(string includeDirectoriesPath)
{
    ThreadHelper.ThrowIfNotOnUIThread();
    VCProject prj;
    IVCCollection cfgs, tools;
    VCConfiguration cfg;
    VCCLCompilerTool tool;            
    DTE2 dte = Package.GetGlobalService(typeof(DTE)) as DTE2;
    prj = (VCProject)dte.Solution.Projects.Item(1).Object;
    cfgs = (IVCCollection)prj.Configurations;
    cfg =  (VCConfiguration)cfgs.Item(1);
    tools = (IVCCollection)cfg.Tools;
    tool = (VCCLCompilerTool)tools.Item("VCCLCompilerTool");           
    tool.AdditionalIncludeDirectories = includeDirectoriesPath;    
}

includeDirectoriesPath为E:\VSAdd\EngineLib\include时，结果
只新建了项目，项目中没有任何C/C++项时该属性不显示。