标签：扫码 C# System Forms Windows 串口 new Drawing Size

效果图

 

 

1.普通USB摄像头

2.扫码枪支持串口通讯

3.引用AFORGE

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引用的内容（自己下载）

 

 

 

 

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C#Form1.Designer.cs 窗口设计代码

namespace com_get
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.serialPort1 = new System.IO.Ports.SerialPort(this.components);
            this.button1 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.button2 = new System.Windows.Forms.Button();
            this.label2 = new System.Windows.Forms.Label();
            this.comboBox2 = new System.Windows.Forms.ComboBox();
            this.button3 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.button5 = new System.Windows.Forms.Button();
            this.pictureBox1 = new AForge.Controls.PictureBox();
            this.button6 = new System.Windows.Forms.Button();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
            this.videplayer = new AForge.Controls.VideoSourcePlayer();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            // 
            // serialPort1
            // 
            this.serialPort1.DiscardNull = true;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(41, 634);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "启动";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Font = new System.Drawing.Font("宋体", 11F);
            this.label1.Location = new System.Drawing.Point(38, 588);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(46, 15);
            this.label1.TabIndex = 1;
            this.label1.Text = "COM口";
            // 
            // comboBox1
            // 
            this.comboBox1.FormattingEnabled = true;
            this.comboBox1.Location = new System.Drawing.Point(100, 583);
            this.comboBox1.Name = "comboBox1";
            this.comboBox1.Size = new System.Drawing.Size(58, 20);
            this.comboBox1.TabIndex = 2;
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(38, 663);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
            this.textBox1.Size = new System.Drawing.Size(185, 51);
            this.textBox1.TabIndex = 3;
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(122, 634);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(83, 23);
            this.button2.TabIndex = 5;
            this.button2.Text = "停止";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(92, 32);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(41, 12);
            this.label2.TabIndex = 6;
            this.label2.Text = "摄像头";
            // 
            // comboBox2
            // 
            this.comboBox2.FormattingEnabled = true;
            this.comboBox2.Location = new System.Drawing.Point(139, 29);
            this.comboBox2.Name = "comboBox2";
            this.comboBox2.Size = new System.Drawing.Size(121, 20);
            this.comboBox2.TabIndex = 7;
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(318, 27);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(75, 23);
            this.button3.TabIndex = 8;
            this.button3.Text = "打开摄像头";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // button4
            // 
            this.button4.Cursor = System.Windows.Forms.Cursors.Default;
            this.button4.Location = new System.Drawing.Point(419, 27);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(75, 23);
            this.button4.TabIndex = 9;
            this.button4.Text = "关闭摄像头";
            this.button4.UseVisualStyleBackColor = true;
            this.button4.Click += new System.EventHandler(this.button4_Click);
            // 
            // button5
            // 
            this.button5.Location = new System.Drawing.Point(538, 27);
            this.button5.Name = "button5";
            this.button5.Size = new System.Drawing.Size(63, 23);
            this.button5.TabIndex = 11;
            this.button5.Text = "拍照";
            this.button5.UseVisualStyleBackColor = true;
            this.button5.Click += new System.EventHandler(this.button5_Click);
            // 
            // pictureBox1
            // 
            this.pictureBox1.BackColor = System.Drawing.SystemColors.ControlDark;
            this.pictureBox1.Image = null;
            this.pictureBox1.Location = new System.Drawing.Point(25, 186);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(198, 165);
            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox1.TabIndex = 12;
            this.pictureBox1.TabStop = false;
            // 
            // button6
            // 
            this.button6.Location = new System.Drawing.Point(671, 26);
            this.button6.Name = "button6";
            this.button6.Size = new System.Drawing.Size(75, 23);
            this.button6.TabIndex = 13;
            this.button6.Text = "保存路径";
            this.button6.UseVisualStyleBackColor = true;
            this.button6.Click += new System.EventHandler(this.button6_Click);
            // 
            // textBox2
            // 
            this.textBox2.Location = new System.Drawing.Point(753, 28);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(186, 21);
            this.textBox2.TabIndex = 14;
            // 
            // videplayer
            // 
            this.videplayer.BackColor = System.Drawing.SystemColors.ButtonShadow;
            this.videplayer.Location = new System.Drawing.Point(320, 60);
            this.videplayer.Name = "videplayer";
            this.videplayer.Size = new System.Drawing.Size(1116, 766);
            this.videplayer.TabIndex = 10;
            this.videplayer.Text = "videoSourcePlayer1";
            this.videplayer.VideoSource = null;
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Font = new System.Drawing.Font("宋体", 12F);
            this.label3.Location = new System.Drawing.Point(45, 399);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(88, 16);
            this.label3.TabIndex = 15;
            this.label3.Text = "流程单号码";
            this.label3.TextAlign = System.Drawing.ContentAlignment.TopCenter;
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.label4.Font = new System.Drawing.Font("宋体", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            this.label4.Location = new System.Drawing.Point(41, 719);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(193, 107);
            this.label4.TabIndex = 18;
            this.label4.Text = "\r\n设置方法\r\n1.打开摄像头\r\n2.设置保存图片的路径\r\n3.选择扫描枪的 COM口  \r\n4.按下启动\r\n\r\n";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(1473, 862);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.textBox2);
            this.Controls.Add(this.button6);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.button5);
            this.Controls.Add(this.videplayer);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.comboBox2);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.comboBox1);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "扫码枪通讯";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.IO.Ports.SerialPort serialPort1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.ComboBox comboBox1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.ComboBox comboBox2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button button5;
        private AForge.Controls.PictureBox pictureBox1;
        private System.Windows.Forms.Button button6;
        private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
        public AForge.Controls.VideoSourcePlayer videplayer;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Button button4;
        private System.Windows.Forms.Label label4;
    }
}

　　

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DOMO代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Forms;
using System.IO;
using System.Windows.Media.Imaging;
using AForge;
using AForge.Controls;
using AForge.Video;
using AForge.Video.DirectShow;
using Size = System.Drawing.Size;


namespace com_get
{
    public partial class Form1 : Form
    {
        private FilterInfoCollection videoDevices;  //AFORGE摄像头
        public Form1()
        {
            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //枚举COM口
            #region  
            foreach (string com in System.IO.Ports.SerialPort.GetPortNames())
            {
                comboBox1.Items.Add(com);  //如果有COM口就添加进去
            }
            comboBox1.SelectedIndex = 1;  //COM选择默认第一个
            #endregion

            //枚举视频信号
            #region  
            try
            {
                // 枚举所有视频输入设备
                videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);

                if (videoDevices.Count == 0)
                    throw new ApplicationException();

                foreach (FilterInfo device in videoDevices)
                {
                    comboBox2.Items.Add(device.Name);  
                }
                comboBox2.SelectedIndex = 0;
            }
            catch (ApplicationException)
            {
                comboBox2.Items.Add("没有视频设备");
                videoDevices = null;
            }
            #endregion

            button2.Enabled = false;                         //COM关闭不可以按
            button4.Enabled = false;                         //关闭视频不可按
            serialPort1.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(ComPort_DataReceived);//定义串口接受数据的一个方法

            #region #判斷文件夾是否存在，對文件夾進行處理
            if (Directory.Exists(setting.FilePath) == false)
            {
                Directory.CreateDirectory(setting.FilePath);      //如果文件不存在则創建文件夾
            }
            #endregion
            Control.CheckForIllegalCrossThreadCalls = false;
        }


        #region #串口方法
        private void ComPort_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e) //串口函数
        {
            string str = serialPort1.ReadExisting(); //定义字符型变量str，把COM读取到的赋值给str
            //textBox1.AppendText(str+"\r\n");               //str输出到屏幕框框内
            setting.FileName = str + ".jpg";
            getpicture();
        }
        #endregion
       

        private void button1_Click(object sender, EventArgs e)       //启动按钮
        {
            try
            {
                serialPort1.PortName = comboBox1.Text;                     //设置COM口
                serialPort1.BaudRate = 9600;                               //COM传输速度
                serialPort1.DataBits = 8;                                  //COM数据位
                serialPort1.Parity = System.IO.Ports.Parity.None;          //奇偶校验
                serialPort1.StopBits = System.IO.Ports.StopBits.One;       //COM停止位
                serialPort1.Open();                                        //打开端口
                textBox1.AppendText("启动成功" + "\r\n");
                button1.Enabled = false;                            
                button2.Enabled = true;
                comboBox1.Enabled = false;
            }
            catch
            {
                textBox1.AppendText("启动失败" + "\r\n");
                MessageBox.Show("COM打开失败");

            }

        }
        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                serialPort1.Close();                                 //关闭COM口
                textBox1.AppendText("关闭成功" + "\r\n");
                button1.Enabled = true;
                button2.Enabled = false;
                comboBox1.Enabled = true;

                
            }
            catch
            {
                textBox1.AppendText("COM关闭失败" + "\r\n");
                MessageBox.Show("关闭失败");
            }
        }  //关闭按钮


        private void button3_Click(object sender, EventArgs e)
        {
            Camera_Connect();
        }

        private void Camera_Connect()
        {
            if (videoDevices == null)
            {
                MessageBox.Show("打开失败");
            }
            else
            {
                VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[comboBox2.SelectedIndex].MonikerString);//定义视频源
                //videoSource.DesiredFrameSize = new System.Drawing.Size(1280, 1024); //设置大小
                //videoSource.DesiredFrameRate = 1;  //设置帧率
                videplayer.VideoSource = videoSource; //控件与摄像头连接
                videplayer.Start();                     //控件开始将摄像头内容显示出来
                button4.Enabled = true;
                button3.Enabled = false;
            }

        }

        private void button4_Click(object sender, EventArgs e)
        {
            videplayer.SignalToStop(); //停止控件播放
            videplayer.WaitForStop();
            button3.Enabled = true;
            button4.Enabled = false;
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            //程序关闭前释放摄像头资源和COM断开
            videplayer.SignalToStop();
            videplayer.WaitForStop();
            serialPort1.Close(); 
        }

        private void button5_Click(object sender, EventArgs e)

        {
            if (videplayer.IsRunning)
            {
                getpicture();
            }
            else
            {
        
                pictureBox1.Image = null;
            }
        }

        private void getpicture()  //拍照
        {
          
            try
            {
                BitmapSource bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
                                videplayer.GetCurrentVideoFrame().GetHbitmap(),
                                IntPtr.Zero,
                                 Int32Rect.Empty,
                                BitmapSizeOptions.FromEmptyOptions());
                PngBitmapEncoder pE = new PngBitmapEncoder();
                pE.Frames.Add(BitmapFrame.Create(bitmapSource));
                string paddress = setting.FilePath + "\\" + setting.FileName;
                if (File.Exists(paddress))
                {
                    File.Delete(paddress);
                }
                using (Stream stream = File.Create(paddress))
                {
                    pE.Save(stream);
                }
                pictureBox1.Image = videplayer.GetCurrentVideoFrame();//放图片到右边栏
                label3.Text = setting.FileName;

            }
            catch
            {
                MessageBox.Show("拍照失败");
                pictureBox1.Image = null;
            }
            
        }

       

        private void button6_Click(object sender, EventArgs e)
        {

            folderBrowserDialog1.Description = "请选择文件夹";
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK || folderBrowserDialog1.ShowDialog() == DialogResult.Yes)
            {
                textBox2.Text = folderBrowserDialog1.SelectedPath;
                setting.FilePath = folderBrowserDialog1.SelectedPath;
            }

        }

    }
}

　　

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setting.css

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace com_get
{
    class setting
    {
        //文件基本参数
        public static string FileName = "test.jpg";  //默认图片名称
        public static string FilePath = "D:\\picture";   //定义保存的文件夹
        public static int pz=0;


      
        
    }
}

 

标签：扫码,C#,System,Forms,Windows,串口,new,Drawing,Size
来源： https://www.cnblogs.com/ribi/p/15247352.html

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