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   源码介绍

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using System;
using System.Drawing;
using System.IO.Ports;
using System.Windows.Forms;
using GSMMODEM;
 
namespace 短信猫
{
    public partial class Form1 : Form
    {
        private GSMModem gm = new GSMModem();

        //委托 收到短信的回调函数委托
        delegate void UpdataDelegate();         //可以有参数，本处不需要
        UpdataDelegate UpdateHandle = null;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //初始化控件
            foreach (string s in SerialPort.GetPortNames())
            {
                comboBox1.Items.Add(s);
            }
            if (comboBox1.Items.Count == 0)
            {
                label3.Text = "未检测到串口";
                label3.ForeColor = Color.Red;
            }
            else
            {
                comboBox1.SelectedIndex = 0;
            }
            comboBox2.SelectedIndex = 0;

            //初始化设备类对象 gm
            if (comboBox1.Items.Count == 0)
            {

            }
            else
            {
                gm.ComPort = comboBox1.SelectedItem.ToString();
            }
            gm.BaudRate = Convert.ToInt32(comboBox2.SelectedItem);

            gm.OnRecieved  = new GSMModem.OnRecievedHandler(gm_OnRecieved);

            UpdateHandle = new UpdataDelegate(UpdateLabel8);        //实例化委托

        }

        void gm_OnRecieved(object sender, EventArgs e)
        {
            Invoke(UpdateHandle, null);
        }

        void UpdateLabel8()
        {
            label8.Text = "有新消息";
            label8.ForeColor = Color.Green;
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (gm.IsOpen)
            {
                label3.Text = "更改无效";
                label3.ForeColor = Color.Red;
            }
            else
            {
                gm.ComPort = comboBox1.SelectedItem.ToString();
            }
        }

        private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
        {
            gm.BaudRate = Convert.ToInt32(comboBox2.SelectedItem);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (gm.IsOpen == false)
            {
                try
                {
                    gm.Open();
                    label3.Text = "连接成功";
                    label3.ForeColor = Color.Green;
                }
                catch
                {
                    label3.Text = "连接失败";
                    label3.ForeColor = Color.Red;
                }
            }
            else
            {
                label3.Text = "已连接";
                label3.ForeColor = Color.Green;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if(gm.IsOpen)
            {
                try
                {
                    gm.Close();
                    label3.Text = "断开成功";
                    label3.ForeColor = Color.Red;
                }
                catch
                {
                    label3.Text="断开失败";
                    label3.ForeColor=Color.Red;
                }
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //短信过长，通知用户字数 直接返回
            if (textBox2.Text.Length > 70)
            {
                label6.Text = "短信"   textBox2.Text.Length.ToString()   "字";
                label6.ForeColor = Color.Red;
                return;
            }
            if (gm.IsOpen)
            {
                try
                {
                    gm.SendMsg(textBox1.Text, textBox2.Text);
                }
                catch
                {
                    label6.Text = "发送失败";
                    label6.ForeColor = Color.Red;
                    return;
                }
                label6.Text = "发送成功";
                label6.ForeColor = Color.Green;
            }
            else
            {
                label6.Text = "设备未连接";
                label6.ForeColor = Color.Red;
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            textBox4.Text = null;

            string msgCenter, phone, msg, time;
            if (gm.IsOpen)
            {
                try
                {
                    gm.ReadMsgByIndex(Convert.ToInt32(textBox3.Text), out msgCenter, out phone, out msg, out time);
                    textBox4.Text = "短信中心："   msgCenter   "\r\n"   "手机号码："   phone   "\r\n"  
                            "短信内容："   msg   "\r\n"   "发送时间："   time.Substring(0, 4)   "-"  
                            time.Substring(4, 2)   "-"   time.Substring(6, 2)   " "   time.Substring(8, 2)  
                            ":"   time.Substring(10, 2)   ":"   time.Substring(12, 2);
                    label9.Text = "读取成功";
                    label9.ForeColor = Color.Green;
                }
                catch
                {
                    label9.Text = "读取失败";
                    label9.ForeColor = Color.Red;
                    return;
                }
            }
            else
            {
                label9.Text = "设备未连接";
                label9.ForeColor = Color.Red;
            }

        }

        private void button5_Click(object sender, EventArgs e)
        {
            //
            textBox5.Text = null;

            if (label8.Text != "有新消息")
            {
                label8.Text = "没有新消息";
                label8.ForeColor = Color.Red;
                return;
            }

            string msgCenter, phone, msg, time;
            if (gm.IsOpen)
            {
                try
                {
                    gm.ReadMsgByIndex(gm.NewMsgIndex, out msgCenter, out phone, out msg, out time);
                    textBox5.Text = "短信中心："   msgCenter   "\r\n"   "手机号码："   phone   "\r\n"  
                            "短信内容："   msg   "\r\n"   "发送时间："   time.Substring(0, 4)   "-"  
                            time.Substring(4, 2)   "-"   time.Substring(6, 2)   " "   time.Substring(8, 2)  
                            ":"   time.Substring(10, 2)   ":"   time.Substring(12, 2);
                    label8.Text = "读取成功";
                    label8.ForeColor = Color.Green;
                }
                catch
                {
                    label8.Text = "读取失败";
                    label8.ForeColor = Color.Red;
                    return;
                }
            }
            else
            {
                label8.Text = "设备未连接";
                label8.ForeColor = Color.Red;
            }

        }

        private void button6_Click(object sender, EventArgs e)
        {
            if (gm.IsOpen)
            {
                try
                {
                    gm.DeleteMsgByIndex(Convert.ToInt32(textBox3.Text));
                }
                catch
                {
                    label9.Text = "删除失败";
                    label9.ForeColor = Color.Red;
                    return;
                }
            }
            else
            {
                label9.Text = "设备未连接";
                label9.ForeColor = Color.Red;
                return;
            }
            label9.Text = "删除成功";
            label9.ForeColor = Color.Green;
        }
    }
}