The part of calling the camera has been implemented

but the recognition is not yet complete

OTP/Form3.Designer.cs

@@ -42,7 +42,10 @@
             this.label4 = new System.Windows.Forms.Label();
             this.label5 = new System.Windows.Forms.Label();
             this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.pictureBox1 = new System.Windows.Forms.PictureBox();
+            this.button7 = new System.Windows.Forms.Button();
             this.groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
             this.SuspendLayout();
             // 
             // label1
@@ -125,6 +128,7 @@
             this.button5.TabIndex = 8;
             this.button5.Text = "Scan QR Code with Camera";
             this.button5.UseVisualStyleBackColor = true;
+            this.button5.Click += new System.EventHandler(this.button5_Click);
             // 
             // button6
             // 
@@ -164,22 +168,49 @@
             // 
             // groupBox1
             // 
+            this.groupBox1.Controls.Add(this.button7);
+            this.groupBox1.Controls.Add(this.pictureBox1);
             this.groupBox1.Controls.Add(this.label4);
             this.groupBox1.Controls.Add(this.label5);
             this.groupBox1.Controls.Add(this.label3);
             this.groupBox1.Location = new System.Drawing.Point(15, 148);
             this.groupBox1.Name = "groupBox1";
-            this.groupBox1.Size = new System.Drawing.Size(453, 243);
+            this.groupBox1.Size = new System.Drawing.Size(453, 288);
             this.groupBox1.TabIndex = 14;
             this.groupBox1.TabStop = false;
             this.groupBox1.Text = "Debug Info";
             // 
+            // pictureBox1
+            // 
+            this.pictureBox1.Location = new System.Drawing.Point(105, 113);
+            this.pictureBox1.Name = "pictureBox1";
+            this.pictureBox1.Size = new System.Drawing.Size(255, 169);
+            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
+            this.pictureBox1.TabIndex = 14;
+            this.pictureBox1.TabStop = false;
+            // 
+            // button7
+            // 
+            this.button7.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
+            | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.button7.Font = new System.Drawing.Font("Microsoft Sans Serif", 48F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.button7.Location = new System.Drawing.Point(366, 162);
+            this.button7.MinimumSize = new System.Drawing.Size(75, 75);
+            this.button7.Name = "button7";
+            this.button7.Size = new System.Drawing.Size(75, 75);
+            this.button7.TabIndex = 15;
+            this.button7.Text = "●";
+            this.button7.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            this.button7.UseVisualStyleBackColor = true;
+            this.button7.Click += new System.EventHandler(this.button7_Click);
+            // 
             // Form3
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.CancelButton = this.button2;
-            this.ClientSize = new System.Drawing.Size(488, 403);
+            this.ClientSize = new System.Drawing.Size(488, 448);
             this.Controls.Add(this.groupBox1);
             this.Controls.Add(this.button6);
             this.Controls.Add(this.button5);
@@ -201,6 +232,7 @@
             this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form3_FormClosing);
             this.groupBox1.ResumeLayout(false);
             this.groupBox1.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
             this.ResumeLayout(false);
             this.PerformLayout();
 
@@ -222,5 +254,7 @@
         private System.Windows.Forms.Label label4;
         private System.Windows.Forms.Label label5;
         private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.PictureBox pictureBox1;
+        private System.Windows.Forms.Button button7;
     }
 }

OTP/Form3.cs

@@ -10,6 +10,8 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using ZXing;
+using AForge.Video;
+using AForge.Video.DirectShow;
 
 namespace OTP
 {
@@ -18,15 +20,22 @@ namespace OTP
         private string connectionString = "Data Source=key.db;Version=3;";
         private bool isCapturing = false; // 添加标识截图状态的成员变量
         private bool isLocalfile = false;
+        private FilterInfoCollection videoDevices; // 声明用于存储摄像头设备信息的变量
+        private VideoCaptureDevice camera; // 声明用于摄像头捕获的变量
+        private bool isCameraRunning = false; // 用于标识摄像头的运行状态
+        private bool isScanningPaused = false;
 
         public Form3()
         {
             InitializeComponent();
+            videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
+
         }
 
         private void Form3_FormClosing(object sender, FormClosingEventArgs e)
         {
             StopCapturing(); // 关闭窗口时停止截图
+            StopCamera(); // 关闭窗口时停止摄像头
         }
 
         private void button1_Click(object sender, EventArgs e)
@@ -198,5 +207,64 @@ namespace OTP
                 }
             }
         }
+
+        private void button5_Click(object sender, EventArgs e)
+        {
+            if (!isCameraRunning)
+            {
+                StartCamera(); // 启动摄像头
+            }
+            else
+            {
+                StopCamera(); // 停止摄像头
+            }
+        }
+        private void StartCamera()
+        {
+            if (videoDevices != null && videoDevices.Count > 0)
+            {
+                camera = new VideoCaptureDevice(videoDevices[0].MonikerString);
+                camera.NewFrame += Camera_NewFrame; // 注册摄像头捕获图像的事件
+                camera.Start(); // 启动摄像头
+                isCameraRunning = true; // 设置摄像头运行状态为 true
+                //button5.Text = "Stop Camera"; // 更新按钮文本
+            }
+            else
+            {
+                MessageBox.Show("No camera device found.");
+            }
+        }
+
+        private void StopCamera()
+        {
+            if (camera != null && camera.IsRunning)
+            {
+                camera.SignalToStop();
+                camera.WaitForStop();
+                camera.NewFrame -= Camera_NewFrame; // 取消注册摄像头捕获图像的事件
+                isCameraRunning = false; // 设置摄像头运行状态为 false
+                //button5.Text = "Start Camera"; // 更新按钮文本
+            }
+        }
+
+        private void Camera_NewFrame(object sender, NewFrameEventArgs eventArgs)
+        {
+            // 进行二维码扫描
+            Bitmap bitmap = (Bitmap)eventArgs.Frame.Clone();
+            if (!isScanningPaused)
+            {
+                pictureBox1.Image = bitmap;
+            }else
+            {
+                // 进行二维码扫描
+                ScanQRCode(bitmap);
+            }
+        }
+
+        private void button7_Click(object sender, EventArgs e)
+        {
+            isScanningPaused = !isScanningPaused;
+            button7.Text = isScanningPaused ? "Resume" : "Pause";
+        }
     }
 }

OTP/OTP.csproj

@@ -36,6 +36,15 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="AForge, Version=2.2.5.0, Culture=neutral, PublicKeyToken=c1db6ff4eaa06aeb, processorArchitecture=MSIL">
+      <HintPath>..\packages\AForge.2.2.5\lib\AForge.dll</HintPath>
+    </Reference>
+    <Reference Include="AForge.Video, Version=2.2.5.0, Culture=neutral, PublicKeyToken=cbfb6e07d173c401, processorArchitecture=MSIL">
+      <HintPath>..\packages\AForge.Video.2.2.5\lib\AForge.Video.dll</HintPath>
+    </Reference>
+    <Reference Include="AForge.Video.DirectShow, Version=2.2.5.0, Culture=neutral, PublicKeyToken=61ea4348d43881b7, processorArchitecture=MSIL">
+      <HintPath>..\packages\AForge.Video.DirectShow.2.2.5\lib\AForge.Video.DirectShow.dll</HintPath>
+    </Reference>
     <Reference Include="CircularProgressBar, Version=2.8.0.16, Culture=neutral, PublicKeyToken=310fd07b25df79b3, processorArchitecture=MSIL">
       <HintPath>..\packages\CircularProgressBar.2.8.0.16\lib\net40\CircularProgressBar.dll</HintPath>
     </Reference>

OTP/packages.config

@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="AForge" version="2.2.5" targetFramework="net481" />
+  <package id="AForge.Video" version="2.2.5" targetFramework="net481" />
+  <package id="AForge.Video.DirectShow" version="2.2.5" targetFramework="net481" />
   <package id="CircularProgressBar" version="2.8.0.16" targetFramework="net481" />
   <package id="EntityFramework" version="6.4.4" targetFramework="net481" />
   <package id="Otp.NET" version="1.3.0" targetFramework="net481" />