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1 using System;
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2 using System.Collections.Generic;
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3 using System.ComponentModel;
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4 using System.Data;
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5 using System.Drawing;
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6 using System.Drawing.Imaging;
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7 using System.IO;
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8 using System.Runtime.InteropServices;
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9 using System.Text;
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10 using System.Windows.Forms;
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11 using ZXing;
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12 using Microsoft.Win32;
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13
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14 /*
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15 * Copyright (c) 2014 Brad Greco <brad@bgreco.net>
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16 */
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17 namespace QuickQR
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18 {
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19 public partial class QRForm : Form
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20 {
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21 const int WM_HOTKEY = 786;
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22
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23 private BarcodeWriter writer;
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24 private KeyBinding keyBinding;
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25 private String currentText;
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26 private Settings settings;
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27
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28 [DllImport("user32.dll")]
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29 private static extern int RegisterHotKey(IntPtr hwnd, int id, int fsModifiers, int vk);
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30 [DllImport("user32.dll")]
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31 private static extern int UnregisterHotKey(IntPtr hwnd, int id);
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32
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33 public QRForm()
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34 {
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35 InitializeComponent();
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36 }
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37
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38 private void QRForm_Load(object sender, EventArgs e)
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39 {
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40 settings = new Settings();
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41 loadSettings();
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42 registerHotkey(keyBinding);
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43 writer = new BarcodeWriter { Format = BarcodeFormat.QR_CODE };
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44 writer.Options.Margin = 2;
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45 fileHide.ShortcutKeyDisplayString = "Esc";
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46 reset();
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47 notifyIcon.Icon = new System.Drawing.Icon(this.Icon, 16, 16);
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48 }
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49
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50 private void notifyIcon_DoubleClick(object sender, EventArgs e)
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51 {
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52 this.Show();
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53 this.Activate();
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54 generateFromClipboard();
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55 }
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56
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57 private void generateFromClipboard()
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58 {
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59 if (Clipboard.ContainsText())
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60 {
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61 inputTextBox.Text = Clipboard.GetText();
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62 generate(Clipboard.GetText());
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63 }
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64 else
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65 {
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66 reset();
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67 }
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68 }
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69
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70 private void generateFromTextBox()
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71 {
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72 if (inputTextBox.Text.Length > 0)
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73 generate(inputTextBox.Text);
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74 else
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75 reset();
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76 }
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77
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78 private void generate(String text)
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79 {
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80 System.Diagnostics.Debug.WriteLine("Generating: " + text);
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81 currentText = text;
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82 draw();
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83 }
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84
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85 private void draw()
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86 {
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87 writer.Options.Width = QRImage.Width;
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88 writer.Options.Height = QRImage.Height;
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89 try
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90 {
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91 QRImage.Image = writer.Write(currentText);
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92 }
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93 catch (Exception e)
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94 {
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95 System.Diagnostics.Debug.WriteLine(e.Message);
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96 showError(e.Message);
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97 return;
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98 }
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99 finally
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100 {
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101 inputTextBox.SelectAll();
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102 inputTextBox.Focus();
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103 }
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104 if (QRLabel.ForeColor != Color.Black)
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105 QRLabel.ForeColor = Color.Black;
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106 QRLabel.Text = currentText;
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107 fileSaveAs.Enabled = true;
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108 QRImage.ContextMenuStrip = imageMenu;
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109 }
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110
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111 private void registerHotkey(KeyBinding hotkey)
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112 {
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113 settings.setHotkey(hotkey);
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114 unregisterHotkey();
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115 if (hotkey.key > 0)
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116 RegisterHotKey(this.Handle, hotkey.getID(), hotkey.sum(), hotkey.key);
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117 keyBinding = hotkey;
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118 }
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119
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120 private void unregisterHotkey()
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121 {
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122 if (keyBinding.key > 0)
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123 UnregisterHotKey(this.Handle, keyBinding.getID());
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124 }
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125
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126 private void showHotkeyForm()
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127 {
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128 unregisterHotkey();
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129 SetHotkey form = new SetHotkey(keyBinding);
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130 if (form.ShowDialog() == DialogResult.OK)
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131 registerHotkey(form.keyBinding);
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132 form.Dispose();
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133 }
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134
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135 private void loadSettings()
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136 {
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137 optionWinStart.Checked = menuAutorun.Checked = settings.autostart;
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138 optionBackground.Checked = settings.background;
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139 keyBinding = new KeyBinding(settings.hotkey);
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140 registerAutostart();
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141 }
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142
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143 private void registerAutostart()
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144 {
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145 RegistryKey key = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);
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146 if (settings.autostart)
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147 key.SetValue("QuickQR", Application.ExecutablePath.ToString());
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148 else
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149 key.DeleteValue("QuickQR", false);
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150 }
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151
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152 private void showError(String message)
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153 {
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154 QRLabel.ForeColor = Color.Red;
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155 QRLabel.Text = message;
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156 }
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157
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158 private void reset()
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159 {
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160 inputTextBox.Text = string.Empty;
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161 QRImage.Image = null;
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162 QRLabel.Text = String.Empty;
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163 inputTextBox.Focus();
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164 currentText = string.Empty;
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165 fileSaveAs.Enabled = false;
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166 QRImage.ContextMenuStrip = null;
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167 }
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168
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169 private void toggleBackground()
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170 {
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171 settings.setBackground(!settings.background);
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172 optionBackground.Checked = settings.background;
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173 }
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174
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175 private void toggleAutorun()
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176 {
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177 settings.setAutostart(!settings.autostart);
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178 optionWinStart.Checked = menuAutorun.Checked = settings.autostart;
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179 registerAutostart();
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180 }
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181
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182 private void saveImage()
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183 {
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184 SaveFileDialog dialog = new SaveFileDialog();
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185 dialog.DefaultExt = "png";
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186 dialog.Filter = "PNG images (*.png)|*.png|All files (*.*)|*.*";
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187 String fileName = currentText;
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188 foreach (char c in Path.GetInvalidFileNameChars())
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189 {
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190 fileName = fileName.Replace(c.ToString(), "");
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191 }
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192 dialog.FileName = fileName;
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193 if (dialog.ShowDialog() == DialogResult.OK)
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194 {
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195 QRImage.Image.Save(dialog.FileName, ImageFormat.Png);
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196 }
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197 dialog.Dispose();
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198 }
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199
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200 [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
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201 protected override void WndProc(ref Message m)
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202 {
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203 // Listen for operating system messages.
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204 switch (m.Msg)
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205 {
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206 case WM_HOTKEY:
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207 System.Diagnostics.Debug.WriteLine(m.WParam.ToString());
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208 if (m.WParam.ToInt32() == keyBinding.getID())
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209 {
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210 System.Diagnostics.Debug.WriteLine("Our hotkey received");
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211 this.Show();
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212 this.Activate();
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213 generateFromClipboard();
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214 }
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215 break;
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216 }
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217 base.WndProc(ref m);
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218 }
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219
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220 protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
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221 {
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222 if (keyData == Keys.Escape)
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223 {
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224 if (settings.background)
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225 this.Hide();
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226 else
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227 Application.Exit();
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228 return true;
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229 }
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230 return base.ProcessCmdKey(ref msg, keyData);
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231 }
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232
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233 private void QRForm_Resize(object sender, EventArgs e)
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234 {
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235 if (currentText != string.Empty)
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236 draw();
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237 }
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238
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239 private void inputTextBox_KeyDown(object sender, KeyEventArgs e)
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240 {
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241 if (e.KeyCode == Keys.Enter)
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242 generateFromTextBox();
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243 }
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244
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245 private void generateButton_Click(object sender, EventArgs e)
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246 {
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247 generateFromTextBox();
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248 }
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249
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250 private void fileHide_Click(object sender, EventArgs e)
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251 {
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252 this.Hide();
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253 }
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254
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255 private void fileExit_Click(object sender, EventArgs e)
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256 {
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257 Application.Exit();
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258 }
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259
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260 private void menuGenerateClipboard_Click(object sender, EventArgs e)
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261 {
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262 this.Show();
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263 generateFromClipboard();
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264 }
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265
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266 private void menuNew_Click(object sender, EventArgs e)
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267 {
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268 this.Show();
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269 reset();
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270 }
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271
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272 private void exitToolStripMenuItem_Click(object sender, EventArgs e)
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273 {
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274 Application.Exit();
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275 }
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276
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277 private void QRForm_FormClosing(object sender, FormClosingEventArgs e)
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278 {
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279 System.Diagnostics.Debug.WriteLine("Reason: " + e.CloseReason);
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280 if (settings.background && (e.CloseReason == CloseReason.None || e.CloseReason == CloseReason.UserClosing))
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281 {
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282 this.Hide();
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283 e.Cancel = true;
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284 }
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285 }
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286
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287 private void optionHotkey_Click(object sender, EventArgs e)
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288 {
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289 showHotkeyForm();
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290 }
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291
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292 private void menuAutorun_Click(object sender, EventArgs e)
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293 {
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294 toggleAutorun();
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295 }
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296
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297 private void menuHotkey_Click(object sender, EventArgs e)
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298 {
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299 showHotkeyForm();
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300 }
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301
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302 private void optionWinStart_Click(object sender, EventArgs e)
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303 {
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304 toggleAutorun();
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305 }
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306
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307 private void optionBackground_Click(object sender, EventArgs e)
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308 {
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309 toggleBackground();
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310 }
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311
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312 private void imageCopy_Click(object sender, EventArgs e)
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313 {
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314 Clipboard.SetImage(QRImage.Image);
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315 }
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316
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317 private void fileSaveAs_Click(object sender, EventArgs e)
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318 {
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319 saveImage();
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320 }
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321
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322 private void imageSaveAs_Click(object sender, EventArgs e)
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323 {
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324 saveImage();
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325 }
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326
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327 private void helpAbout_Click(object sender, EventArgs e)
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328 {
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329 AboutForm form = new AboutForm();
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330 form.ShowDialog();
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331 form.Dispose();
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332 }
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333 }
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334 }
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