C#

public static class AppSettings
{
   private static int _setting1;
   public static int Setting1
   {
      get { return _setting1; }
   }

   private static string _setting2;
   public static string Setting2
   {
      get { return _setting2; }
   }

   static AppSettings()
   {
      LoadSettings();
   }

   public static LoadSettings()
   {
      // Call the DAL here and load the settings from the database.
      // The values returned from the DAL are assigned to 
      // _setting1 and _setting2
   }

   // This method's only purpose is to make it possible to
   // reload the settings dynamically while the application
   // is already running
   public static ReloadSettings()
   {
      LoadSettings();
   }
}

public static class AppSettings
{
   private static AppSettingsData _appSettingsData;

   public static int Setting1
   {
      get { return _appSettingsData.Setting1; }
   }

   public static string Setting2
   {
      get { return _appSettingsData.Setting2; }
   }

   static AppSettings()
   {
      LoadSettings();
   }

   public static LoadSettings()
   {
      int setting1;
      string setting2;

      // Call the DAL here and load the settings from the database
      // the values returned from the DAL are assigned to 
      // setting1 and setting2

      AppSettingsData settingsData = new AppSettingsData(setting1, setting2);
      _appSettingsData = settingsData;
   }

   // This method's only purpose is to make it possible
   // to reload the settings dynamically while the application
   // is already running
   public static ReloadSettings()
   {
      LoadSettings();
   }
}

public class AppSettingsData
{
   public AppSettingsData(int setting1, string setting2)
   {
      _setting1 = setting1;
      _setting2 = setting2;
   }

   private int _setting1;
   public int Setting1
   {
      get { return _setting1; }
   }

   private string _setting2;
   private string Setting2
   {
      get { return _setting2; }
   }   
}

function y = copy(a)<br />
y=a;

[DllImport(@"copy.dll")]<br />
private static extern bool copyInitialize();<br />
[DllImport(@"copy.dll")]<br />
private static extern void copyTerminate();<br />
[DllImport(@"copy.dll")]<br />
private static extern bool mlfCopy(int num, ref IntPtr output, [In]IntPtr input);<br />
<br />
[DllImport(@"mclmcrrt76.dll")]<br />
private static extern IntPtr mxCreateDoubleMatrix_700([In]Int32 numRows, [In]Int32 numCols, [In]Int32 mxComplexity);<br />
[DllImport(@"mclmcrrt76.dll")]<br />
private static extern IntPtr mxGetPr([In]IntPtr mxArray);<br />
[DllImport(@"mclmcrrt76.dll")]<br />
private static extern bool mclInitializeApplication(string options, int count);<br />
[DllImport(@"mclmcrrt76.dll")]<br />
private static extern void mclTerminateApplication();<br />
<br />
static void Main(string[] args)<br />
{<br />
double[] copyInput = { 1.0};<br />
<br />
mclInitializeApplication("NULL", 0);<br />
copyInitialize();<br />
<br />
IntPtr inValA = mxCreateDoubleMatrix_700(copyInput.Length, 1, 0);<br />
<br />
int size = Marshal.SizeOf(copyInput [0]) * copyInput.Length;<br />
<br />
IntPtr outVal = Marshal.AllocHGlobal(size);<br />
<br />
// Copy the array to unmanaged memory.<br />
Marshal.Copy(copyInput , 0, inValA, copyInput .Length);<br />
<br />
//Run matlab function<br />
mlfCopy(1, ref outVal, inValA);<br />
<br />
// Get return value<br />
double[] copyAns = new double[copyInput .Length];<br />
Marshal.Copy(outVal, copyAns, 0, copyInput.Length);<br />
<br />
copyTerminate();<br />
mclTerminateApplication();

[DllImport(@"copy.dll")]<br />
private static extern bool mlxCopy(int numOut, ref IntPtr output, int numIn, [In]IntPtr input);