获取IDL路径

在基于ENVI的二次开发中，要提供idl.dll  的路径。获取该路径需要获取idl的安装目录，一般在ENVI安装的根目录下。为了获取ENVI的安装目录，读取注册表信息。

   public static  string IDLBinPath
        {

            get
            {
               using (RegistryKey key = Registry.LocalMachine.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Uninstall", false))
                {
                    if (key != null)//判断对象存在
                    {
                        foreach (string keyName in key.GetSubKeyNames())//遍历子项名称的字符串数组
                        {
                            using (RegistryKey key2 = key.OpenSubKey(keyName, false))//遍历子项节点
                            {
                                if (key2 != null)
                                {
                                    string softwareName = key2.GetValue("DisplayName", "").ToString();//获取软件名
                                    string installLocation = key2.GetValue("InstallLocation", "").ToString();//获取安装路径
                                    if (!string.IsNullOrEmpty(installLocation))
                                    {
                                        if (softwareName == "ENVI 4.7")
                                        {
                                            IDLpathrout = installLocation + "IDL71\\bin\\bin.x86\\idl.dll";
                                        }
                                      
                                    }
                                }
                            }
                        }
                    }
                }
               return IDLpathrout;
               

            }