如何用c++调用wmi的方法，获得vista的启动项

怎么用c++调用wmi的方法，获得vista的启动项
怎么用c++ 调用wmi的方法？获取win7和vista的启动项。已知：wmi的bcdobject类，用getelement
谢谢
相关c#代码如下

 public void LoadAllOS()

        {

            List<string> lstOsName = new List<string>();

            ConnectionOptions connectionOptions = new ConnectionOptions();

            connectionOptions.Impersonation = ImpersonationLevel.Impersonate;

            connectionOptions.EnablePrivileges = true;


            ManagementScope managementScope = new ManagementScope(@"root\WMI", connectionOptions);


            // SYSTEM STORE GUID = {9dea862c-5cdd-4e70-acc1-f32b344d4795}

            systemObject = new BcdObject(managementScope, "{9dea862c-5cdd-4e70-acc1-f32b344d4795}", "");


            ManagementBaseObject mboOut;

            bool success = systemObject.GetElement((uint)BCDConstants.BcdBootMgrElementTypes.BcdBootMgrObjectList_DisplayOrder, out mboOut);


            if (success)

            {

                string[] osIdList = (string[])mboOut.GetPropertyValue("Ids");

                foreach (string osGuid in osIdList)

                {

                    BcdObject osObj = new BcdObject(managementScope, osGuid, "");

                    success = osObj.GetElement((uint)BCDConstants.BcdLibraryElementTypes.BcdLibraryString_Description, out mboOut);


                    if (success)

                    {

                        OS myOS = new OS();

                        myOS.Name = mboOut.GetPropertyValue("String").ToString();

                        myOS.GUID = osGuid;

                        myOS.osObj = osObj;

//                         lstOS.Items.Add(myOS);

                        lstOsName.Add(myOS.Name.ToString());