using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using System.Diagnostics;
using System.IO;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
SerialPort myPort = null;
Image image = null;
List<byte> buffer = new List<byte>();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
myPort = new SerialPort("COM10");
myPort.Open();
myPort.DataReceived += new SerialDataReceivedEventHandler(myPort_DataReceived);
}
void myPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string line = myPort.ReadLine();
Debug.WriteLine(line);
if (line.Substring(0, 2) == "S0")
{
buffer.Clear();
return;
}
if (line.Substring(0, 2) == "S9")
{
byte[] byteArray = new byte[buffer.Count];
for (int i = 0; i < buffer.Count; i++)
{
byteArray[i] = buffer[i];
}
MemoryStream ms = new MemoryStream(byteArray);
try
{
image = Image.FromStream(ms);
}
catch (ArgumentException)
{
Debug.WriteLine("ArgumentException");
return;
}
Invalidate();
return;
}
if (line.Substring(0, 2) == "S1")
{
string s = line.Substring(2, 2);
int slen = Convert.ToInt32(s, 16);
int data_len = slen - 3;
for (int i = 0; i < data_len; i++)
{
s = line.Substring(8+i * 2, 2);
byte x = Convert.ToByte(s, 16);
buffer.Add(x);
}
return;
}
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
if (image != null)
{
e.Graphics.DrawImage(image, 0, 0, 320, 240);
}
}
}
}