Horizon – Blame information for rev 4
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Rev | Author | Line No. | Line |
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1 | office | 1 | using System; |
2 | using System.Drawing; |
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3 | using System.Drawing.Imaging; |
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4 | using System.IO; |
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5 | using System.Runtime.InteropServices; |
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6 | using System.Windows.Forms; |
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7 | |||
8 | namespace Horizon.Utilities |
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9 | { |
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10 | public enum CaptureMode |
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11 | { |
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12 | Screen, |
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13 | |||
14 | Window |
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15 | } |
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16 | |||
17 | /// <summary> |
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18 | /// Capture screen or active window. |
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19 | /// </summary> |
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20 | /// <remarks>KvanTTT & Wade Hatler @ https://stackoverflow.com/questions/1163761/capture-screenshot-of-active-window</remarks> |
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21 | public static class ScreenCapture |
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22 | { |
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23 | #region Static Fields and Constants |
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24 | |||
25 | /// <summary> Position of the cursor relative to the start of the capture </summary> |
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26 | public static Point CursorPosition; |
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27 | |||
28 | #endregion |
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29 | |||
30 | #region Nested Types |
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31 | |||
32 | [StructLayout(LayoutKind.Sequential)] |
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33 | private struct Rect |
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34 | { |
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35 | public readonly int Left; |
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36 | |||
37 | public readonly int Top; |
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38 | |||
39 | public readonly int Right; |
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40 | |||
41 | public readonly int Bottom; |
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42 | } |
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43 | |||
44 | #endregion |
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45 | |||
46 | #region Public Methods |
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47 | |||
48 | [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)] |
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49 | public static extern IntPtr GetDesktopWindow(); |
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50 | |||
51 | /// <summary> |
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52 | /// Capture Active Window, Desktop, Window or Control by hWnd or .NET Contro/Form and save it to a specified |
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53 | /// file. |
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54 | /// </summary> |
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55 | /// <param name="filename"> |
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56 | /// Filename. |
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57 | /// <para>* If extension is omitted, it's calculated from the type of file</para> |
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58 | /// <para>* If path is omitted, defaults to %TEMP%</para> |
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59 | /// <para>* Use %NOW% to put a timestamp in the filename</para> |
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60 | /// </param> |
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61 | /// <param name="mode">Optional. The default value is CaptureMode.Window.</param> |
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62 | /// <param name="format">Optional file save mode. Default is PNG</param> |
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63 | public static void CaptureAndSave(string filename, CaptureMode mode = CaptureMode.Window, |
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64 | ImageFormat format = null) |
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65 | { |
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66 | ImageSave(filename, format, Capture(mode)); |
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67 | } |
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68 | |||
69 | /// <summary> Capture a specific window (or control) and save it to a specified file. </summary> |
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70 | /// <param name="filename"> |
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71 | /// Filename. |
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72 | /// <para>* If extension is omitted, it's calculated from the type of file</para> |
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73 | /// <para>* If path is omitted, defaults to %TEMP%</para> |
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74 | /// <para>* Use %NOW% to put a timestamp in the filename</para> |
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75 | /// </param> |
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76 | /// <param name="handle">hWnd (handle) of the window to capture</param> |
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77 | /// <param name="format">Optional file save mode. Default is PNG</param> |
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78 | public static void CaptureAndSave(string filename, IntPtr handle, ImageFormat format = null) |
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79 | { |
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80 | ImageSave(filename, format, Capture(handle)); |
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81 | } |
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82 | |||
83 | /// <summary> Capture a specific window (or control) and save it to a specified file. </summary> |
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84 | /// <param name="filename"> |
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85 | /// Filename. |
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86 | /// <para>* If extension is omitted, it's calculated from the type of file</para> |
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87 | /// <para>* If path is omitted, defaults to %TEMP%</para> |
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88 | /// <para>* Use %NOW% to put a timestamp in the filename</para> |
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89 | /// </param> |
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90 | /// <param name="c">Object to capture</param> |
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91 | /// <param name="format">Optional file save mode. Default is PNG</param> |
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92 | public static void CaptureAndSave(string filename, Control c, ImageFormat format = null) |
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93 | { |
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94 | ImageSave(filename, format, Capture(c)); |
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95 | } |
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96 | |||
97 | /// <summary> Capture the active window (default) or the desktop and return it as a bitmap </summary> |
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98 | /// <param name="mode">Optional. The default value is CaptureMode.Window.</param> |
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99 | public static Bitmap Capture(CaptureMode mode = CaptureMode.Window) |
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100 | { |
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101 | return Capture(mode == CaptureMode.Screen ? GetDesktopWindow() : GetForegroundWindow()); |
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102 | } |
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103 | |||
104 | /// <summary> Capture a .NET Control, Form, UserControl, etc. </summary> |
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105 | /// <param name="c">Object to capture</param> |
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106 | /// <returns> Bitmap of control's area </returns> |
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107 | public static Bitmap Capture(Control c) |
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108 | { |
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109 | return Capture(c.Handle); |
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110 | } |
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111 | |||
112 | |||
113 | /// <summary> Capture a specific window and return it as a bitmap </summary> |
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114 | /// <param name="handle">hWnd (handle) of the window to capture</param> |
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115 | public static Bitmap Capture(IntPtr handle) |
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116 | { |
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117 | Rectangle bounds; |
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118 | var rect = new Rect(); |
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119 | GetWindowRect(handle, ref rect); |
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120 | bounds = new Rectangle(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top); |
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121 | CursorPosition = new Point(Cursor.Position.X - rect.Left, Cursor.Position.Y - rect.Top); |
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122 | |||
123 | var result = new Bitmap(bounds.Width, bounds.Height); |
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124 | using (var graphics = Graphics.FromImage(result)) |
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125 | { |
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126 | graphics.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size); |
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127 | } |
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128 | |||
129 | return result; |
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130 | } |
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131 | |||
132 | #endregion |
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133 | |||
134 | #region Private Methods |
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135 | |||
136 | [DllImport("user32.dll")] |
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137 | private static extern IntPtr GetForegroundWindow(); |
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138 | |||
139 | [DllImport("user32.dll")] |
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140 | private static extern IntPtr GetWindowRect(IntPtr hWnd, ref Rect rect); |
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141 | |||
142 | |||
143 | /// <summary> Save an image to a specific file </summary> |
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144 | /// <param name="filename"> |
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145 | /// Filename. |
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146 | /// <para>* If extension is omitted, it's calculated from the type of file</para> |
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147 | /// <para>* If path is omitted, defaults to %TEMP%</para> |
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148 | /// <para>* Use %NOW% to put a timestamp in the filename</para> |
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149 | /// </param> |
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150 | /// <param name="format">Optional file save mode. Default is PNG</param> |
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151 | /// <param name="image"> |
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152 | /// Image to save. Usually a BitMap, but can be any |
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153 | /// Image. |
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154 | /// </param> |
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155 | private static void ImageSave(string filename, ImageFormat format, Image image) |
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156 | { |
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157 | if (format == null) |
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158 | { |
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159 | format = ImageFormat.Png; |
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160 | } |
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161 | |||
162 | if (!filename.Contains(".")) |
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163 | { |
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164 | filename = filename.Trim() + "." + format.ToString().ToLower(); |
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165 | } |
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166 | |||
167 | if (!filename.Contains(@"\")) |
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168 | { |
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169 | filename = Path.Combine(Environment.GetEnvironmentVariable("TEMP") ?? @"C:\Temp", filename); |
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170 | } |
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171 | |||
172 | filename = filename.Replace("%NOW%", DateTime.Now.ToString("yyyy-MM-dd@hh.mm.ss")); |
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173 | image.Save(filename, format); |
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174 | } |
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175 | |||
176 | #endregion |
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177 | } |
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178 | } |