magicdemoapp.vb

matlab实用教程

' *******************************************************************************
'
' MagicDemoApp.vb
'
' This file is an example for using MATLAB COM component inside .NET Visual 
' Basic application.
'
' Copyright 2001-2006 The MathWorks, Inc.
'
' *******************************************************************************

Imports System
Imports MagicDemoComp

Namespace MathWorks.Demo.MagicDemoApp

    ' <summary>
    ' The MagicDemoApp class computes a magic square of the user specified size.  
    ' </summary>
    ' <remarks>
    ' args[0] - a positive integer representing the array size.
    ' </remarks>
    Class MagicDemoApp

#Region " MAIN "

        ' <summary>
        ' The main entry point for the application.
        ' </summary>
        Shared Sub Main(ByVal args() As String)

            Dim arraySize As Integer
            Dim magic As MagicSquareClass = Nothing

            Try
                ' Get user specified command line arguments or set default
                If (0 <> args.Length) Then
                    arraySize = System.Int32.Parse(args(0))
                Else
                    arraySize = 4
                End If

                ' Create the magic square object
                magic = New MagicSquareClass

                ' Compute the magic square and print the result
                Dim nativeArray As Object = New Object
                magic.makesquare(1, nativeArray, arraySize)

                ' Convert the magic square array to a two dimensional native double array
                Console.WriteLine("{0}Magic square as native array:{1}", Chr(10), Chr(10))
                If (nativeArray.GetType().IsArray) Then
                    Dim myArray As System.Array = CType(nativeArray, System.Array)
                    ' Display the array elements:
                    For i As Integer = myArray.GetLowerBound(0) To myArray.GetUpperBound(0)
                        For j As Integer = myArray.GetLowerBound(1) To myArray.GetUpperBound(1)
                            Console.WriteLine("Element({0},{1})= {2}", i, j, myArray.GetValue(i, j))
                        Next j
                    Next i
                End If

                Console.ReadLine()  ' Wait for user to exit application

            Catch exception As System.Runtime.InteropServices.COMException
                Console.WriteLine("COM Error: {0}", exception)

            Catch exception As Exception
                Console.WriteLine("Error: {0}", exception)

            Finally
                ' Free the COM object
                If Not (magic Is Nothing) Then
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(magic)
                End If

            End Try
        End Sub
#End Region

    End Class

End Namespace