作者在 2011-11-02 00:26:48 发布以下内容
还是跟原先一样先摆好控件和控件对应的事件如下:
本实例是通过设置SerialPort的方法和属性来实现的下面简单介绍SerialPort的相关事件和属性:
SerialPort类的DataReceived 事件,DataReceived 事件为本实例的主要使用技术。DataReceived事件表示将处理 SerialPort 对象的数据接收事件的方法。串行接收事件可以由 SerialData 枚举中的任何项引起,是否引发此事件由操作系统决定,所以不一定会报告所有奇偶校验错误。启动Microsoft Visual Studio 2008新建一个项目,命名为关闭对方计算机程序(可以任意取),默认窗体为Form1,在Form1窗体中,主要添加两个Button控件,分别用于打开通信串口(在text属性处修改)和关闭对方计算机(在text属性处修改)。
我就不废话了下面是整个程序的代码(可能不是很详细谅解):
private void button1_Click(object sender, EventArgs e)
{
//打开串口
serialPort1.PortName = "COM1";
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
} //数据接收事件,等待接收关机命令
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] data = Convert.FromBase64String(serialPort1.ReadLine());
string str = Encoding.Unicode.GetString(data);
serialPort1.Close();
if (str == "关机")
{
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.StandardInput.WriteLine("shutdown /s");
p.StandardInput.WriteLine("exit");
}
} //发送关机命令
private void button2_Click(object sender, EventArgs e)
{
if (button2.Text == "关闭计算机")
{
//发送关机命令数据
byte[] data = Encoding.Unicode.GetBytes("关机");
string str = Convert.ToBase64String(data);
serialPort1.WriteLine(str);
button2.Text = "取消关机";
}
else
{
button2.Text = "关闭计算机";
button1.Enabled = true;
button2.Enabled = false;
//取消关机
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.StandardInput.WriteLine("shutdown /a");
p.StandardInput.WriteLine("exit");
}
}
{
//打开串口
serialPort1.PortName = "COM1";
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
} //数据接收事件,等待接收关机命令
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] data = Convert.FromBase64String(serialPort1.ReadLine());
string str = Encoding.Unicode.GetString(data);
serialPort1.Close();
if (str == "关机")
{
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.StandardInput.WriteLine("shutdown /s");
p.StandardInput.WriteLine("exit");
}
} //发送关机命令
private void button2_Click(object sender, EventArgs e)
{
if (button2.Text == "关闭计算机")
{
//发送关机命令数据
byte[] data = Encoding.Unicode.GetBytes("关机");
string str = Convert.ToBase64String(data);
serialPort1.WriteLine(str);
button2.Text = "取消关机";
}
else
{
button2.Text = "关闭计算机";
button1.Enabled = true;
button2.Enabled = false;
//取消关机
Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.StandardInput.WriteLine("shutdown /a");
p.StandardInput.WriteLine("exit");
}
}
搞定了
睡觉去:
哈哈