| 1 |
/*********************************************************************
|
| 2 |
*
|
| 3 |
* Microchip Ethernet Discoverer
|
| 4 |
* -Provides a PC interface for the Announce.c Microchip TCP/IP
|
| 5 |
* module
|
| 6 |
*
|
| 7 |
*********************************************************************
|
| 8 |
* FileName: frmMain.cs
|
| 9 |
* Dependencies: Microsoft .NET Framework 2.0
|
| 10 |
* Processor: x86
|
| 11 |
* Complier: Microsoft Visual C# 2005 Express Edition
|
| 12 |
* Company: Microchip Technology, Inc.
|
| 13 |
*
|
| 14 |
* Software License Agreement
|
| 15 |
*
|
| 16 |
* This software is owned by Microchip Technology Inc. ("Microchip")
|
| 17 |
* and is supplied to you for use exclusively as described in the
|
| 18 |
* associated software agreement. This software is protected by
|
| 19 |
* software and other intellectual property laws. Any use in
|
| 20 |
* violation of the software license may subject the user to criminal
|
| 21 |
* sanctions as well as civil liability. Copyright 2006 Microchip
|
| 22 |
* Technology Inc. All rights reserved.
|
| 23 |
*
|
| 24 |
* This software is provided "AS IS." MICROCHIP DISCLAIMS ALL
|
| 25 |
* WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, NOT LIMITED
|
| 26 |
* TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
|
| 27 |
* INFRINGEMENT. Microchip shall in no event be liable for special,
|
| 28 |
* incidental, or consequential damages.
|
| 29 |
*
|
| 30 |
*
|
| 31 |
* Author Date Comment
|
| 32 |
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
| 33 |
* Howard Schlunder 7/31/06 Original
|
| 34 |
********************************************************************/
|
| 35 |
using System;
|
| 36 |
using System.Collections.Generic;
|
| 37 |
using System.ComponentModel;
|
| 38 |
using System.Data;
|
| 39 |
using System.Drawing;
|
| 40 |
using System.Text;
|
| 41 |
using System.Windows.Forms;
|
| 42 |
using System.Net.Sockets;
|
| 43 |
|
| 44 |
namespace Embedded_Device_Discoverer
|
| 45 |
{
|
| 46 |
public partial class Form1 : Form
|
| 47 |
{
|
| 48 |
public delegate void AsyncCallback(IAsyncResult ar);
|
| 49 |
public delegate void AddTolstDiscoveredDevices(object o);
|
| 50 |
|
| 51 |
private UdpState GlobalUDP;
|
| 52 |
|
| 53 |
public Form1()
|
| 54 |
{
|
| 55 |
InitializeComponent();
|
| 56 |
}
|
| 57 |
|
| 58 |
struct UdpState
|
| 59 |
{
|
| 60 |
public System.Net.IPEndPoint EP;
|
| 61 |
public System.Net.Sockets.UdpClient UDPClient;
|
| 62 |
}
|
| 63 |
|
| 64 |
private void cmdDiscoverDevices_Click(object sender, EventArgs e)
|
| 65 |
{
|
| 66 |
try
|
| 67 |
{
|
| 68 |
// Clear the listbox of all current discovery responses
|
| 69 |
listView1.Items.Clear();
|
| 70 |
|
| 71 |
// Try to send the discovery request message
|
| 72 |
byte[] DiscoverMsg = Encoding.ASCII.GetBytes("Discovery: Who is out there?");
|
| 73 |
GlobalUDP.UDPClient.Send(DiscoverMsg, DiscoverMsg.Length, new System.Net.IPEndPoint(System.Net.IPAddress.Parse("255.255.255.255"), 30303));
|
| 74 |
}
|
| 75 |
catch
|
| 76 |
{
|
| 77 |
MessageBox.Show("Unable to transmit discovery message. Check network connectivity and ensure that no other instances of this program are running.", "Error", MessageBoxButtons.OK);
|
| 78 |
return;
|
| 79 |
}
|
| 80 |
}
|
| 81 |
|
| 82 |
public void AddDiscoveryEntry(object o)
|
| 83 |
{
|
| 84 |
//lstDiscoveredDevices.Items.Add(o);
|
| 85 |
listView1.Items.Add(new ListViewItem(((string)(o)).Split('\n')));
|
| 86 |
}
|
| 87 |
|
| 88 |
public void ReceiveCallback(IAsyncResult ar)
|
| 89 |
{
|
| 90 |
UdpState MyUDP = (UdpState)ar.AsyncState;
|
| 91 |
|
| 92 |
// Obtain the UDP message body and convert it to a string, with remote IP address attached as well
|
| 93 |
string ReceiveString = Encoding.ASCII.GetString(MyUDP.UDPClient.EndReceive(ar, ref MyUDP.EP));
|
| 94 |
ReceiveString = MyUDP.EP.Address.ToString() + "\n" + ReceiveString.Replace("\r\n", "\n");
|
| 95 |
|
| 96 |
// Configure the UdpClient class to accept more messages, if they arrive
|
| 97 |
MyUDP.UDPClient.BeginReceive(ReceiveCallback, MyUDP);
|
| 98 |
|
| 99 |
// Write the received UDP message text to the listbox in a thread-safe manner
|
| 100 |
//lstDiscoveredDevices.Invoke(new AddTolstDiscoveredDevices(AddDiscoveryEntry), ReceiveString);
|
| 101 |
listView1.Invoke(new AddTolstDiscoveredDevices(AddDiscoveryEntry), ReceiveString);
|
| 102 |
}
|
| 103 |
|
| 104 |
private void Form1_Load(object sender, EventArgs e)
|
| 105 |
{
|
| 106 |
try
|
| 107 |
{
|
| 108 |
GlobalUDP.UDPClient = new UdpClient();
|
| 109 |
GlobalUDP.EP = new System.Net.IPEndPoint(System.Net.IPAddress.Parse("255.255.255.255"), 30303);
|
| 110 |
System.Net.IPEndPoint BindEP = new System.Net.IPEndPoint(System.Net.IPAddress.Any, 30303);
|
| 111 |
byte[] DiscoverMsg = Encoding.ASCII.GetBytes("Discovery: Who is out there?");
|
| 112 |
|
| 113 |
// Set the local UDP port to listen on
|
| 114 |
GlobalUDP.UDPClient.Client.Bind(BindEP);
|
| 115 |
|
| 116 |
// Enable the transmission of broadcast packets without having them be received by ourself
|
| 117 |
GlobalUDP.UDPClient.EnableBroadcast = true;
|
| 118 |
GlobalUDP.UDPClient.MulticastLoopback = false;
|
| 119 |
|
| 120 |
// Configure ourself to receive discovery responses
|
| 121 |
GlobalUDP.UDPClient.BeginReceive(ReceiveCallback, GlobalUDP);
|
| 122 |
|
| 123 |
// Transmit the discovery request message
|
| 124 |
GlobalUDP.UDPClient.Send(DiscoverMsg, DiscoverMsg.Length, new System.Net.IPEndPoint(System.Net.IPAddress.Parse("255.255.255.255"), 30303));
|
| 125 |
}
|
| 126 |
catch
|
| 127 |
{
|
| 128 |
MessageBox.Show("Unable to transmit discovery message. Check network connectivity and ensure that no other instances of this program are running.", "Error", MessageBoxButtons.OK);
|
| 129 |
return;
|
| 130 |
}
|
| 131 |
}
|
| 132 |
|
| 133 |
private void listView1_ItemActivate(object sender, EventArgs e)
|
| 134 |
{
|
| 135 |
System.Diagnostics.Process.Start("http://" + listView1.SelectedItems[0].Text);
|
| 136 |
}
|
| 137 |
}
|
| 138 |
} |
Parent Directory
| 
Revision Log