Implement capturing TOTP QR code information from a screen screenshot.

Fix the bug where the program does not exit correctly.

OTP/Form1.Designer.cs

@@ -124,6 +124,7 @@
             this.circularProgressBar1.TabIndex = 6;
             this.circularProgressBar1.Text = "time";
             this.circularProgressBar1.TextMargin = new System.Windows.Forms.Padding(21, 2, 0, 0);
+            this.circularProgressBar1.Value = 30;
             // 
             // button3
             // 
@@ -169,6 +170,7 @@
             this.Controls.Add(this.circularProgressBar1);
             this.Name = "Form1";
             this.Text = "Main Window";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
             this.ResumeLayout(false);
             this.PerformLayout();
 

OTP/Form1.cs

@@ -82,5 +82,18 @@ namespace OTP
             // 隐藏当前的 Form1 实例
             this.Hide();
         }
+
+        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            DialogResult result = MessageBox.Show("Do you want to exit the application?", "Confirm Exit",
+                                                  MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+
+            if (result == DialogResult.No)
+            {
+                e.Cancel = true; // 取消关闭事件，阻止关闭
+            }
+            // 如果用户选择 Yes，什么都不需要做，窗体会继续关闭
+        }
+
     }
 }

OTP/Form2.Designer.cs

@@ -112,6 +112,7 @@
             this.Controls.Add(this.panel1);
             this.Name = "Form2";
             this.Text = "Data Manage";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form2_FormClosing);
             this.panel1.ResumeLayout(false);
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
             this.ResumeLayout(false);

OTP/Form2.cs

@@ -60,5 +60,16 @@ namespace OTP
                 }
             }
         }
+
+        private void Form2_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            Form1 form1 = Application.OpenForms["Form1"] as Form1;
+            if (form1 != null)
+            {
+                form1.Show();
+            }
+        }
+
+
     }
 }

OTP/Form3.Designer.cs

@@ -37,12 +37,18 @@
             this.button3 = new System.Windows.Forms.Button();
             this.button4 = new System.Windows.Forms.Button();
             this.button5 = new System.Windows.Forms.Button();
+            this.button6 = new System.Windows.Forms.Button();
+            this.label3 = new System.Windows.Forms.Label();
+            this.label4 = new System.Windows.Forms.Label();
+            this.label5 = new System.Windows.Forms.Label();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.groupBox1.SuspendLayout();
             this.SuspendLayout();
             // 
             // label1
             // 
             this.label1.AutoSize = true;
-            this.label1.Location = new System.Drawing.Point(26, 9);
+            this.label1.Location = new System.Drawing.Point(26, 13);
             this.label1.Name = "label1";
             this.label1.Size = new System.Drawing.Size(27, 13);
             this.label1.TabIndex = 0;
@@ -50,7 +56,7 @@
             // 
             // textBox1
             // 
-            this.textBox1.Location = new System.Drawing.Point(72, 6);
+            this.textBox1.Location = new System.Drawing.Point(72, 10);
             this.textBox1.Name = "textBox1";
             this.textBox1.Size = new System.Drawing.Size(202, 20);
             this.textBox1.TabIndex = 1;
@@ -58,7 +64,7 @@
             // label2
             // 
             this.label2.AutoSize = true;
-            this.label2.Location = new System.Drawing.Point(12, 37);
+            this.label2.Location = new System.Drawing.Point(12, 41);
             this.label2.Name = "label2";
             this.label2.Size = new System.Drawing.Size(54, 13);
             this.label2.TabIndex = 2;
@@ -66,25 +72,27 @@
             // 
             // textBox2
             // 
-            this.textBox2.Location = new System.Drawing.Point(72, 34);
+            this.textBox2.Location = new System.Drawing.Point(72, 38);
             this.textBox2.Name = "textBox2";
             this.textBox2.Size = new System.Drawing.Size(202, 20);
             this.textBox2.TabIndex = 3;
             // 
             // button1
             // 
-            this.button1.Location = new System.Drawing.Point(92, 62);
+            this.button1.Location = new System.Drawing.Point(72, 68);
             this.button1.Name = "button1";
-            this.button1.Size = new System.Drawing.Size(75, 23);
+            this.button1.Size = new System.Drawing.Size(100, 45);
             this.button1.TabIndex = 4;
             this.button1.Text = "Add";
             this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
             // 
             // button2
             // 
-            this.button2.Location = new System.Drawing.Point(183, 62);
+            this.button2.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.button2.Location = new System.Drawing.Point(174, 68);
             this.button2.Name = "button2";
-            this.button2.Size = new System.Drawing.Size(75, 23);
+            this.button2.Size = new System.Drawing.Size(100, 45);
             this.button2.TabIndex = 5;
             this.button2.Text = "Cancel";
             this.button2.UseVisualStyleBackColor = true;
@@ -93,35 +101,86 @@
             // 
             this.button3.Location = new System.Drawing.Point(292, 4);
             this.button3.Name = "button3";
-            this.button3.Size = new System.Drawing.Size(117, 23);
+            this.button3.Size = new System.Drawing.Size(176, 23);
             this.button3.TabIndex = 6;
-            this.button3.Text = "Screenshot Scan";
+            this.button3.Text = "Scan QR Code from Screenshot";
             this.button3.UseVisualStyleBackColor = true;
+            this.button3.Click += new System.EventHandler(this.button3_Click);
             // 
             // button4
             // 
             this.button4.Location = new System.Drawing.Point(292, 33);
             this.button4.Name = "button4";
-            this.button4.Size = new System.Drawing.Size(117, 23);
+            this.button4.Size = new System.Drawing.Size(176, 23);
             this.button4.TabIndex = 7;
-            this.button4.Text = "Camera Scan";
+            this.button4.Text = "Scan QR Code from Image File";
             this.button4.UseVisualStyleBackColor = true;
             // 
             // button5
             // 
             this.button5.Location = new System.Drawing.Point(292, 62);
             this.button5.Name = "button5";
-            this.button5.Size = new System.Drawing.Size(117, 23);
+            this.button5.Size = new System.Drawing.Size(176, 23);
             this.button5.TabIndex = 8;
-            this.button5.Text = "Import from Clipboard";
+            this.button5.Text = "Scan QR Code with Camera";
             this.button5.UseVisualStyleBackColor = true;
             // 
+            // button6
+            // 
+            this.button6.Location = new System.Drawing.Point(292, 91);
+            this.button6.Name = "button6";
+            this.button6.Size = new System.Drawing.Size(176, 23);
+            this.button6.TabIndex = 9;
+            this.button6.Text = "Import from Clipboard";
+            this.button6.UseVisualStyleBackColor = true;
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(24, 33);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(33, 13);
+            this.label3.TabIndex = 11;
+            this.label3.Text = "None";
+            // 
+            // label4
+            // 
+            this.label4.AutoSize = true;
+            this.label4.Location = new System.Drawing.Point(24, 59);
+            this.label4.Name = "label4";
+            this.label4.Size = new System.Drawing.Size(37, 13);
+            this.label4.TabIndex = 12;
+            this.label4.Text = "Status";
+            // 
+            // label5
+            // 
+            this.label5.AutoSize = true;
+            this.label5.Location = new System.Drawing.Point(24, 86);
+            this.label5.Name = "label5";
+            this.label5.Size = new System.Drawing.Size(25, 13);
+            this.label5.TabIndex = 13;
+            this.label5.Text = "Info";
+            // 
+            // groupBox1
+            // 
+            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.TabIndex = 14;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "Debug Info";
+            // 
             // 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(418, 96);
+            this.ClientSize = new System.Drawing.Size(488, 403);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.button6);
             this.Controls.Add(this.button5);
             this.Controls.Add(this.button4);
             this.Controls.Add(this.button3);
@@ -138,6 +197,9 @@
             this.ShowIcon = false;
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
             this.Text = "New Record";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form3_FormClosing);
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
             this.ResumeLayout(false);
             this.PerformLayout();
 
@@ -154,5 +216,10 @@
         private System.Windows.Forms.Button button3;
         private System.Windows.Forms.Button button4;
         private System.Windows.Forms.Button button5;
+        private System.Windows.Forms.Button button6;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Label label4;
+        private System.Windows.Forms.Label label5;
+        private System.Windows.Forms.GroupBox groupBox1;
     }
 }

OTP/Form3.cs

@@ -1,22 +1,141 @@
-using System;
+using ScreenCapturerNS;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
+using System.Data.SQLite;
 using System.Drawing;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using ZXing;
 
 namespace OTP
 {
     public partial class Form3 : Form
     {
+        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
+
         public Form3()
         {
             InitializeComponent();
         }
 
+        private void Form3_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            StopCapturing(); // 关闭窗口时停止截图
+        }
 
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                string title = textBox1.Text;
+                string secretKey = textBox2.Text;
+
+                if (!string.IsNullOrWhiteSpace(title) && !string.IsNullOrWhiteSpace(secretKey))
+                {
+                    using (SQLiteConnection connection = new SQLiteConnection(connectionString))
+                    {
+                        connection.Open();
+
+                        using (SQLiteCommand command = new SQLiteCommand("INSERT INTO TotpData (Title, SecretKey) VALUES (@Title, @SecretKey)", connection))
+                        {
+                            command.Parameters.AddWithValue("@Title", title);
+                            command.Parameters.AddWithValue("@SecretKey", secretKey);
+                            command.ExecuteNonQuery();
+                        }
+                    }
+                    this.DialogResult = DialogResult.OK;
+                    MessageBox.Show("Record added successfully.");
+
+                    // 关闭当前的 Form3 实例
+                    this.Close();
+                }
+                else
+                {
+                    MessageBox.Show("Please enter both title and secret key.");
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"An error occurred: {ex.Message}");
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            if (isCapturing)
+            {
+                label5.Text = "Stopped";
+                StopCapturing(); // 停止截图
+            }
+            else
+            {
+                label3.Text = "None";
+                label5.Text = "Running";
+                label4.Text = "No QR code found.";
+                StartCapturing(); // 开始截图
+            }
+        }
+
+        private void StartCapturing()
+        {
+            isCapturing = true; // 设置截图状态为正在截图
+            ScreenCapturer.StartCapture((Bitmap bitmap) => {
+                // 进行二维码扫描
+                ScanQRCode(bitmap);
+            });
+        }
+
+        private void StopCapturing()
+        {
+            isCapturing = false; // 设置截图状态为未截图
+            ScreenCapturer.StopCapture(); // 停止截图
+        }
+
+
+        private void ScanQRCode(Bitmap bitmap)
+        {
+            // 创建二维码读取器实例
+            BarcodeReader barcodeReader = new BarcodeReader();
+
+            // 尝试解码二维码
+            Result result = barcodeReader.Decode(bitmap);
+            if (result != null)
+            {
+                // 扫描成功，显示扫描结果
+                string decodedText = result.Text;
+                this.Invoke((MethodInvoker)(() => label3.Text = decodedText));
+
+                // 判断是否符合期望的格式
+                if (decodedText.StartsWith("otpauth://totp/") && decodedText.Contains("?secret="))
+                {
+                    StopCapturing(); 
+                    this.Invoke((MethodInvoker)(() => label5.Text = "Stopped"));
+                    string[] parts = decodedText.Split(new char[] { '/', '=', '&','?' });
+                    if (parts.Length >= 6)
+                    {
+                        string title = parts[3]; // 获取 title 部分
+                        string secretKey = parts[5]; // 获取 secretKey 部分
+
+                        // 在窗体上显示 title 和 secretKey
+                        this.Invoke((MethodInvoker)(() => textBox1.Text = title));
+                        this.Invoke((MethodInvoker)(() => textBox2.Text = secretKey));
+                        this.Invoke((MethodInvoker)(() => label4.Text = "Success"));
+                    }
+                    else
+                    {
+                        this.Invoke((MethodInvoker)(() => label4.Text = "Invalid QR code format."));
+                    }
+                }
+                else
+                {
+                    this.Invoke((MethodInvoker)(() => label4.Text = "QR code format not recognized."));
+                }
+            }
+        }
     }
 }

OTP/Form4.Designer.cs

@@ -0,0 +1,73 @@
+namespace OTP
+{
+    partial class Form4
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.button1 = new System.Windows.Forms.Button();
+            this.pictureBox1 = new System.Windows.Forms.PictureBox();
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(713, 160);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(75, 23);
+            this.button1.TabIndex = 0;
+            this.button1.Text = "button1";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // pictureBox1
+            // 
+            this.pictureBox1.Location = new System.Drawing.Point(12, 12);
+            this.pictureBox1.Name = "pictureBox1";
+            this.pictureBox1.Size = new System.Drawing.Size(695, 426);
+            this.pictureBox1.TabIndex = 1;
+            this.pictureBox1.TabStop = false;
+            // 
+            // Form4
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.pictureBox1);
+            this.Controls.Add(this.button1);
+            this.Name = "Form4";
+            this.Text = "Form4";
+            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.PictureBox pictureBox1;
+    }
+}

OTP/Form4.cs

@@ -0,0 +1,31 @@
+using ScreenCapturerNS;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace OTP
+{
+    public partial class Form4 : Form
+    {
+        public Form4()
+        {
+            InitializeComponent();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            ScreenCapturer.StartCapture((Bitmap bitmap) => {
+                // 处理截图 (bitmap) 这里
+                // 例如，你可以将截图显示在某个 PictureBox 控件中
+                pictureBox1.Image = bitmap;
+                ScreenCapturer.StopCapture();
+            });
+        }
+    }
+}

OTP/Form4.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

OTP/OTP.csproj

@@ -48,6 +48,18 @@
     <Reference Include="Otp.NET, Version=1.3.0.0, Culture=neutral, PublicKeyToken=38a48df817e173a6, processorArchitecture=MSIL">
       <HintPath>..\packages\Otp.NET.1.3.0\lib\net45\Otp.NET.dll</HintPath>
     </Reference>
+    <Reference Include="ScreenCapturer, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\ScreenCapturer.3.0.1\lib\netstandard2.0\ScreenCapturer.dll</HintPath>
+    </Reference>
+    <Reference Include="SharpDX, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b4dcf0f35e5521f1, processorArchitecture=MSIL">
+      <HintPath>..\packages\SharpDX.4.2.0\lib\net45\SharpDX.dll</HintPath>
+    </Reference>
+    <Reference Include="SharpDX.Direct3D11, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b4dcf0f35e5521f1, processorArchitecture=MSIL">
+      <HintPath>..\packages\SharpDX.Direct3D11.4.2.0\lib\net45\SharpDX.Direct3D11.dll</HintPath>
+    </Reference>
+    <Reference Include="SharpDX.DXGI, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b4dcf0f35e5521f1, processorArchitecture=MSIL">
+      <HintPath>..\packages\SharpDX.DXGI.4.2.0\lib\net45\SharpDX.DXGI.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Core" />
@@ -60,6 +72,9 @@
     <Reference Include="System.Data.SQLite.Linq, Version=1.0.118.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Data.SQLite.Linq.1.0.118.0\lib\net46\System.Data.SQLite.Linq.dll</HintPath>
     </Reference>
+    <Reference Include="System.Drawing.Common, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Drawing.Common.7.0.0\lib\net462\System.Drawing.Common.dll</HintPath>
+    </Reference>
     <Reference Include="System.IO, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\System.IO.4.3.0\lib\net462\System.IO.dll</HintPath>
       <Private>True</Private>
@@ -77,6 +92,12 @@
     <Reference Include="WinFormAnimation, Version=1.6.0.4, Culture=neutral, PublicKeyToken=310fd07b25df79b3, processorArchitecture=MSIL">
       <HintPath>..\packages\WinFormAnimation.1.6.0.4\lib\net40\WinFormAnimation.dll</HintPath>
     </Reference>
+    <Reference Include="zxing, Version=0.16.9.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.9\lib\net48\zxing.dll</HintPath>
+    </Reference>
+    <Reference Include="zxing.presentation, Version=0.16.9.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.9\lib\net48\zxing.presentation.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Form1.cs">
@@ -97,6 +118,12 @@
     <Compile Include="Form3.Designer.cs">
       <DependentUpon>Form3.cs</DependentUpon>
     </Compile>
+    <Compile Include="Form4.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form4.Designer.cs">
+      <DependentUpon>Form4.cs</DependentUpon>
+    </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <EmbeddedResource Include="Form1.resx">
@@ -108,6 +135,9 @@
     <EmbeddedResource Include="Form3.resx">
       <DependentUpon>Form3.cs</DependentUpon>
     </EmbeddedResource>
+    <EmbeddedResource Include="Form4.resx">
+      <DependentUpon>Form4.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>

OTP/packages.config

@@ -3,11 +3,17 @@
   <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" />
+  <package id="ScreenCapturer" version="3.0.1" targetFramework="net481" />
+  <package id="SharpDX" version="4.2.0" targetFramework="net481" />
+  <package id="SharpDX.Direct3D11" version="4.2.0" targetFramework="net481" />
+  <package id="SharpDX.DXGI" version="4.2.0" targetFramework="net481" />
   <package id="Stub.System.Data.SQLite.Core.NetFramework" version="1.0.118.0" targetFramework="net481" />
   <package id="System.Data.SQLite" version="1.0.118.0" targetFramework="net481" />
   <package id="System.Data.SQLite.Core" version="1.0.118.0" targetFramework="net481" />
   <package id="System.Data.SQLite.EF6" version="1.0.118.0" targetFramework="net481" />
   <package id="System.Data.SQLite.Linq" version="1.0.118.0" targetFramework="net481" />
+  <package id="System.Drawing.Common" version="7.0.0" targetFramework="net481" />
   <package id="System.IO" version="4.3.0" targetFramework="net481" />
   <package id="WinFormAnimation" version="1.6.0.4" targetFramework="net481" />
+  <package id="ZXing.Net" version="0.16.9" targetFramework="net481" />
 </packages>