├── .gitattributes ├── install ├── 7z.dll ├── reg.cmd ├── unreg.cmd ├── RegAsm.exe ├── SevenZipSharp.dll └── ZipInfoShell.dll ├── Resources └── zip.png ├── ZipInfoShell.pfx ├── packages.config ├── ZipInfoShell.csproj.user ├── README_zh.md ├── ZipFileInfo.cs ├── README.md ├── Properties ├── AssemblyInfo.cs ├── Resources.Designer.cs └── Resources.resx ├── ZipInfoShell.csproj ├── LICENSE ├── ShellExtLib.cs └── FileContextMenuExt.cs /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | -------------------------------------------------------------------------------- /install/7z.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/7z.dll -------------------------------------------------------------------------------- /install/reg.cmd: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/reg.cmd -------------------------------------------------------------------------------- /Resources/zip.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/Resources/zip.png -------------------------------------------------------------------------------- /ZipInfoShell.pfx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/ZipInfoShell.pfx -------------------------------------------------------------------------------- /install/unreg.cmd: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/unreg.cmd -------------------------------------------------------------------------------- /install/RegAsm.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/RegAsm.exe -------------------------------------------------------------------------------- /install/SevenZipSharp.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/SevenZipSharp.dll -------------------------------------------------------------------------------- /install/ZipInfoShell.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/VrezenStrijder/ZipInfoShell/HEAD/install/ZipInfoShell.dll -------------------------------------------------------------------------------- /packages.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | -------------------------------------------------------------------------------- /ZipInfoShell.csproj.user: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | true 5 | 6 | -------------------------------------------------------------------------------- /README_zh.md: -------------------------------------------------------------------------------- 1 | # ZipInfoShell 2 | [[English]](./README.md) 3 | 4 | 一个windows右键菜单扩展应用. 5 | 当我在windows上要解压一个压缩包时,我常常需要先打开看看这个压缩包的最外层是一个目录还是包含很多个文件,如果是一个目录,那么我可以直接解压至当前目录,否则我可能需要先新建一个目录然后解压至其中,这个操作不复杂但是常常浪费我很多时间,因此我制作了这个工具能让我在压缩文件上点击右键时直接看到最外层的文件结构信息,并且给出推荐的解压方式,这对我很有用,希望你也能喜欢它. 6 | 7 | **安装:** 8 | - 下载源码 9 | - 打开目录 "install" 10 | - 运行 reg.cmd, 需要以管理员权限运行 11 | 12 | **卸载:** 13 | - 打开目录 "install" 14 | - 运行 unreg.cmd, 需要以管理员权限运行 15 | -------------------------------------------------------------------------------- /ZipFileInfo.cs: -------------------------------------------------------------------------------- 1 | namespace ZipInfoShell 2 | { 3 | public class ZipFileInfo 4 | { 5 | public uint FileCount { get; set; } 6 | 7 | public int FirstLevelFileCount { get; set; } 8 | 9 | public int FirstLevelDirectoryCount { get; set; } 10 | 11 | public bool Unzip2NewFolder 12 | { 13 | get 14 | { 15 | if (FirstLevelDirectoryCount == 1 && FirstLevelFileCount == 0) 16 | { 17 | return false; 18 | } 19 | return true; 20 | } 21 | } 22 | 23 | public override string ToString() 24 | { 25 | return $"总文件数: {FileCount} (首层文件数: {FirstLevelFileCount},目录数: {FirstLevelDirectoryCount})"; 26 | } 27 | 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ZipInfoShell 2 | [[中文]](./README_zh.md) 3 | 4 | A tiny windows shell extension app. 5 | 6 | When I need to extract a compressed file on Windows, I often have to open it first to see if the outermost layer is a single directory or contains multiple files. If it's a single directory, I can extract it directly to the current location. Otherwise, I might need to create a new folder first and then extract the contents into it. This operation isn't complicated, but it often wastes a lot of my time. That's why I created this tool that allows me to right-click on a compressed file and immediately see the file structure information of the outermost layer, as well as get a recommended extraction method. This is very useful for me, and I hope you'll like it too. 7 | 8 | **install:** 9 | - download this 10 | - open folder "install" 11 | - just run reg.cmd, need administrators 12 | 13 | **uninstall:** 14 | - open folder "install" 15 | - just run unreg.cmd, need administrators 16 | -------------------------------------------------------------------------------- /Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.InteropServices; 3 | 4 | // 有关程序集的一般信息由以下 5 | // 控制。更改这些特性值可修改 6 | // 与程序集关联的信息。 7 | [assembly: AssemblyTitle("ZipInfoShell")] 8 | [assembly: AssemblyDescription("")] 9 | [assembly: AssemblyConfiguration("")] 10 | [assembly: AssemblyCompany("")] 11 | [assembly: AssemblyProduct("ZipInfoShell")] 12 | [assembly: AssemblyCopyright("Copyright © 2024")] 13 | [assembly: AssemblyTrademark("")] 14 | [assembly: AssemblyCulture("")] 15 | 16 | // 将 ComVisible 设置为 false 会使此程序集中的类型 17 | //对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型 18 | //请将此类型的 ComVisible 特性设置为 true。 19 | [assembly: ComVisible(false)] 20 | 21 | // 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID 22 | [assembly: Guid("1d621415-b53c-4403-b548-b2f719f7cdbc")] 23 | 24 | // 程序集的版本信息由下列四个值组成: 25 | // 26 | // 主版本 27 | // 次版本 28 | // 生成号 29 | // 修订号 30 | // 31 | //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值 32 | //通过使用 "*"，如下所示: 33 | // [assembly: AssemblyVersion("1.0.*")] 34 | [assembly: AssemblyVersion("1.0.0.0")] 35 | [assembly: AssemblyFileVersion("1.0.0.0")] 36 | -------------------------------------------------------------------------------- /Properties/Resources.Designer.cs: -------------------------------------------------------------------------------- 1 | //------------------------------------------------------------------------------ 2 | // 3 | // 此代码由工具生成。 4 | // 运行时版本:4.0.30319.42000 5 | // 6 | // 对此文件的更改可能会导致不正确的行为，并且如果 7 | // 重新生成代码，这些更改将会丢失。 8 | // 9 | //------------------------------------------------------------------------------ 10 | 11 | namespace ZipInfoShell.Properties { 12 | using System; 13 | 14 | 15 | /// 16 | /// 一个强类型的资源类，用于查找本地化的字符串等。 17 | /// 18 | // 此类是由 StronglyTypedResourceBuilder 19 | // 类通过类似于 ResGen 或 Visual Studio 的工具自动生成的。 20 | // 若要添加或移除成员，请编辑 .ResX 文件，然后重新运行 ResGen 21 | // (以 /str 作为命令选项)，或重新生成 VS 项目。 22 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")] 23 | [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] 24 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] 25 | internal class Resources { 26 | 27 | private static global::System.Resources.ResourceManager resourceMan; 28 | 29 | private static global::System.Globalization.CultureInfo resourceCulture; 30 | 31 | [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")] 32 | internal Resources() { 33 | } 34 | 35 | /// 36 | /// 返回此类使用的缓存的 ResourceManager 实例。 37 | /// 38 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 39 | internal static global::System.Resources.ResourceManager ResourceManager { 40 | get { 41 | if (object.ReferenceEquals(resourceMan, null)) { 42 | global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("ZipInfoShell.Properties.Resources", typeof(Resources).Assembly); 43 | resourceMan = temp; 44 | } 45 | return resourceMan; 46 | } 47 | } 48 | 49 | /// 50 | /// 重写当前线程的 CurrentUICulture 属性，对 51 | /// 使用此强类型资源类的所有资源查找执行重写。 52 | /// 53 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 54 | internal static global::System.Globalization.CultureInfo Culture { 55 | get { 56 | return resourceCulture; 57 | } 58 | set { 59 | resourceCulture = value; 60 | } 61 | } 62 | 63 | /// 64 | /// 查找 System.Drawing.Bitmap 类型的本地化资源。 65 | /// 66 | internal static System.Drawing.Bitmap zip { 67 | get { 68 | object obj = ResourceManager.GetObject("zip", resourceCulture); 69 | return ((System.Drawing.Bitmap)(obj)); 70 | } 71 | } 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /ZipInfoShell.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {1D621415-B53C-4403-B548-B2F719F7CDBC} 8 | Library 9 | Properties 10 | ZipInfoShell 11 | ZipInfoShell 12 | v4.8 13 | 512 14 | true 15 | 16 | 17 | true 18 | full 19 | false 20 | bin\Debug\ 21 | DEBUG;TRACE 22 | prompt 23 | 4 24 | false 25 | true 26 | 27 | 28 | pdbonly 29 | true 30 | bin\Release\ 31 | TRACE 32 | prompt 33 | 4 34 | 35 | 36 | true 37 | 38 | 39 | ZipInfoShell.pfx 40 | 41 | 42 | 43 | 44 | 45 | 46 | ..\packages\SevenZipSharp.Net45.1.0.19\lib\net45\SevenZipSharp.dll 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | True 69 | True 70 | Resources.resx 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | ResXFileCodeGenerator 84 | Resources.Designer.cs 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | -------------------------------------------------------------------------------- /Properties/Resources.resx: -------------------------------------------------------------------------------- 1 | 2 | 3 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | text/microsoft-resx 110 | 111 | 112 | 2.0 113 | 114 | 115 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | 118 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 119 | 120 | 121 | 122 | ..\Resources\zip.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a 123 | 124 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /ShellExtLib.cs: -------------------------------------------------------------------------------- 1 | /********************************** Module Header **********************************\ 2 | Module Name: ShellExtLib.cs 3 | Project: CSShellExtContextMenuHandler 4 | Copyright (c) Microsoft Corporation. 5 | 6 | The file declares the imported Shell interfaces: IShellExtInit and IContextMenu, 7 | implements the helper functions for registering and unregistering a shell context 8 | menu handler, and declares the Win32 enums, structs, consts, and functions used by 9 | the code sample. 10 | 11 | This source is subject to the Microsoft Public License. 12 | See http://www.microsoft.com/opensource/licenses.mspx#Ms-PL. 13 | All other rights reserved. 14 | 15 | THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER 16 | EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 17 | MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. 18 | \***********************************************************************************/ 19 | 20 | #region Using directives 21 | using Microsoft.Win32; 22 | using System; 23 | using System.Runtime.InteropServices; 24 | using System.Runtime.InteropServices.ComTypes; 25 | using System.Text; 26 | #endregion 27 | 28 | 29 | namespace CSShellExtContextMenuHandler 30 | { 31 | #region Shell Interfaces 32 | 33 | [ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 34 | [Guid("000214e8-0000-0000-c000-000000000046")] 35 | internal interface IShellExtInit 36 | { 37 | void Initialize( 38 | IntPtr /*LPCITEMIDLIST*/ pidlFolder, 39 | IntPtr /*LPDATAOBJECT*/ pDataObj, 40 | IntPtr /*HKEY*/ hKeyProgID); 41 | } 42 | 43 | 44 | [ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 45 | [Guid("000214e4-0000-0000-c000-000000000046")] 46 | internal interface IContextMenu 47 | { 48 | [PreserveSig] 49 | int QueryContextMenu( 50 | IntPtr /*HMENU*/ hMenu, 51 | uint iMenu, 52 | uint idCmdFirst, 53 | uint idCmdLast, 54 | uint uFlags); 55 | 56 | void InvokeCommand(IntPtr pici); 57 | 58 | void GetCommandString( 59 | UIntPtr idCmd, 60 | uint uFlags, 61 | IntPtr pReserved, 62 | StringBuilder pszName, 63 | uint cchMax); 64 | } 65 | 66 | #endregion 67 | 68 | 69 | #region Shell Registration 70 | 71 | internal class ShellExtReg 72 | { 73 | /// 74 | /// Register the context menu handler. 75 | /// 76 | /// The CLSID of the component. 77 | /// 78 | /// The file type that the context menu handler is associated with. For 79 | /// example, '*' means all file types; '.txt' means all .txt files. The 80 | /// parameter must not be NULL or an empty string. 81 | /// 82 | /// The friendly name of the component. 83 | public static void RegisterShellExtContextMenuHandler(Guid clsid, 84 | string fileType, string friendlyName) 85 | { 86 | if (clsid == Guid.Empty) 87 | { 88 | throw new ArgumentException("clsid must not be empty"); 89 | } 90 | if (string.IsNullOrEmpty(fileType)) 91 | { 92 | throw new ArgumentException("fileType must not be null or empty"); 93 | } 94 | 95 | // If fileType starts with '.', try to read the default value of the 96 | // HKCR\ key which contains the ProgID to which the file type 97 | // is linked. 98 | if (fileType.StartsWith(".")) 99 | { 100 | using (RegistryKey key = Registry.ClassesRoot.OpenSubKey(fileType)) 101 | { 102 | if (key != null) 103 | { 104 | // If the key exists and its default value is not empty, use 105 | // the ProgID as the file type. 106 | string defaultVal = key.GetValue(null) as string; 107 | if (!string.IsNullOrEmpty(defaultVal)) 108 | { 109 | fileType = defaultVal; 110 | } 111 | } 112 | } 113 | } 114 | 115 | // Create the key HKCR\\shellex\ContextMenuHandlers\{}. 116 | string keyName = string.Format(@"{0}\shellex\ContextMenuHandlers\{1}", 117 | fileType, clsid.ToString("B")); 118 | using (RegistryKey key = Registry.ClassesRoot.CreateSubKey(keyName)) 119 | { 120 | // Set the default value of the key. 121 | if (key != null && !string.IsNullOrEmpty(friendlyName)) 122 | { 123 | key.SetValue(null, friendlyName); 124 | } 125 | } 126 | } 127 | 128 | /// 129 | /// Unregister the context menu handler. 130 | /// 131 | /// The CLSID of the component. 132 | /// 133 | /// The file type that the context menu handler is associated with. For 134 | /// example, '*' means all file types; '.txt' means all .txt files. The 135 | /// parameter must not be NULL or an empty string. 136 | /// 137 | public static void UnregisterShellExtContextMenuHandler(Guid clsid, 138 | string fileType) 139 | { 140 | if (clsid == null) 141 | { 142 | throw new ArgumentException("clsid must not be null"); 143 | } 144 | if (string.IsNullOrEmpty(fileType)) 145 | { 146 | throw new ArgumentException("fileType must not be null or empty"); 147 | } 148 | 149 | // If fileType starts with '.', try to read the default value of the 150 | // HKCR\ key which contains the ProgID to which the file type 151 | // is linked. 152 | if (fileType.StartsWith(".")) 153 | { 154 | using (RegistryKey key = Registry.ClassesRoot.OpenSubKey(fileType)) 155 | { 156 | if (key != null) 157 | { 158 | // If the key exists and its default value is not empty, use 159 | // the ProgID as the file type. 160 | string defaultVal = key.GetValue(null) as string; 161 | if (!string.IsNullOrEmpty(defaultVal)) 162 | { 163 | fileType = defaultVal; 164 | } 165 | } 166 | } 167 | } 168 | 169 | // Remove the key HKCR\\shellex\ContextMenuHandlers\{}. 170 | string keyName = string.Format(@"{0}\shellex\ContextMenuHandlers\{1}", 171 | fileType, clsid.ToString("B")); 172 | Registry.ClassesRoot.DeleteSubKeyTree(keyName, false); 173 | } 174 | } 175 | 176 | #endregion 177 | 178 | 179 | #region Enums & Structs 180 | 181 | internal enum GCS : uint 182 | { 183 | GCS_VERBA = 0x00000000, 184 | GCS_HELPTEXTA = 0x00000001, 185 | GCS_VALIDATEA = 0x00000002, 186 | GCS_VERBW = 0x00000004, 187 | GCS_HELPTEXTW = 0x00000005, 188 | GCS_VALIDATEW = 0x00000006, 189 | GCS_VERBICONW = 0x00000014, 190 | GCS_UNICODE = 0x00000004 191 | } 192 | 193 | [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 194 | internal struct CMINVOKECOMMANDINFO 195 | { 196 | public uint cbSize; 197 | public CMIC fMask; 198 | public IntPtr hwnd; 199 | public IntPtr verb; 200 | [MarshalAs(UnmanagedType.LPStr)] 201 | public string parameters; 202 | [MarshalAs(UnmanagedType.LPStr)] 203 | public string directory; 204 | public int nShow; 205 | public uint dwHotKey; 206 | public IntPtr hIcon; 207 | } 208 | 209 | [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 210 | internal struct CMINVOKECOMMANDINFOEX 211 | { 212 | public uint cbSize; 213 | public CMIC fMask; 214 | public IntPtr hwnd; 215 | public IntPtr verb; 216 | [MarshalAs(UnmanagedType.LPStr)] 217 | public string parameters; 218 | [MarshalAs(UnmanagedType.LPStr)] 219 | public string directory; 220 | public int nShow; 221 | public uint dwHotKey; 222 | public IntPtr hIcon; 223 | [MarshalAs(UnmanagedType.LPStr)] 224 | public string title; 225 | public IntPtr verbW; 226 | public string parametersW; 227 | public string directoryW; 228 | public string titleW; 229 | POINT ptInvoke; 230 | } 231 | 232 | [Flags] 233 | internal enum CMIC : uint 234 | { 235 | CMIC_MASK_ICON = 0x00000010, 236 | CMIC_MASK_HOTKEY = 0x00000020, 237 | CMIC_MASK_NOASYNC = 0x00000100, 238 | CMIC_MASK_FLAG_NO_UI = 0x00000400, 239 | CMIC_MASK_UNICODE = 0x00004000, 240 | CMIC_MASK_NO_CONSOLE = 0x00008000, 241 | CMIC_MASK_ASYNCOK = 0x00100000, 242 | CMIC_MASK_NOZONECHECKS = 0x00800000, 243 | CMIC_MASK_FLAG_LOG_USAGE = 0x04000000, 244 | CMIC_MASK_SHIFT_DOWN = 0x10000000, 245 | CMIC_MASK_PTINVOKE = 0x20000000, 246 | CMIC_MASK_CONTROL_DOWN = 0x40000000 247 | } 248 | 249 | [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 250 | public struct POINT 251 | { 252 | public int X; 253 | public int Y; 254 | } 255 | 256 | internal enum CLIPFORMAT : uint 257 | { 258 | CF_TEXT = 1, 259 | CF_BITMAP = 2, 260 | CF_METAFILEPICT = 3, 261 | CF_SYLK = 4, 262 | CF_DIF = 5, 263 | CF_TIFF = 6, 264 | CF_OEMTEXT = 7, 265 | CF_DIB = 8, 266 | CF_PALETTE = 9, 267 | CF_PENDATA = 10, 268 | CF_RIFF = 11, 269 | CF_WAVE = 12, 270 | CF_UNICODETEXT = 13, 271 | CF_ENHMETAFILE = 14, 272 | CF_HDROP = 15, 273 | CF_LOCALE = 16, 274 | CF_MAX = 17, 275 | 276 | CF_OWNERDISPLAY = 0x0080, 277 | CF_DSPTEXT = 0x0081, 278 | CF_DSPBITMAP = 0x0082, 279 | CF_DSPMETAFILEPICT = 0x0083, 280 | CF_DSPENHMETAFILE = 0x008E, 281 | 282 | CF_PRIVATEFIRST = 0x0200, 283 | CF_PRIVATELAST = 0x02FF, 284 | 285 | CF_GDIOBJFIRST = 0x0300, 286 | CF_GDIOBJLAST = 0x03FF 287 | } 288 | 289 | [Flags] 290 | internal enum CMF : uint 291 | { 292 | CMF_NORMAL = 0x00000000, 293 | CMF_DEFAULTONLY = 0x00000001, 294 | CMF_VERBSONLY = 0x00000002, 295 | CMF_EXPLORE = 0x00000004, 296 | CMF_NOVERBS = 0x00000008, 297 | CMF_CANRENAME = 0x00000010, 298 | CMF_NODEFAULT = 0x00000020, 299 | CMF_INCLUDESTATIC = 0x00000040, 300 | CMF_ITEMMENU = 0x00000080, 301 | CMF_EXTENDEDVERBS = 0x00000100, 302 | CMF_DISABLEDVERBS = 0x00000200, 303 | CMF_ASYNCVERBSTATE = 0x00000400, 304 | CMF_OPTIMIZEFORINVOKE = 0x00000800, 305 | CMF_SYNCCASCADEMENU = 0x00001000, 306 | CMF_DONOTPICKDEFAULT = 0x00002000, 307 | CMF_RESERVED = 0xFFFF0000 308 | } 309 | 310 | [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 311 | internal struct MENUITEMINFO 312 | { 313 | public uint cbSize; 314 | public MIIM fMask; 315 | public MFT fType; 316 | public MFS fState; 317 | public uint wID; 318 | public IntPtr hSubMenu; 319 | public IntPtr hbmpChecked; 320 | public IntPtr hbmpUnchecked; 321 | public UIntPtr dwItemData; 322 | [MarshalAs(UnmanagedType.LPTStr)] 323 | public string dwTypeData; 324 | public uint cch; 325 | public IntPtr hbmpItem; 326 | } 327 | 328 | [Flags] 329 | internal enum MIIM : uint 330 | { 331 | MIIM_STATE = 0x00000001, 332 | MIIM_ID = 0x00000002, 333 | MIIM_SUBMENU = 0x00000004, 334 | MIIM_CHECKMARKS = 0x00000008, 335 | MIIM_TYPE = 0x00000010, 336 | MIIM_DATA = 0x00000020, 337 | MIIM_STRING = 0x00000040, 338 | MIIM_BITMAP = 0x00000080, 339 | MIIM_FTYPE = 0x00000100 340 | } 341 | 342 | internal enum MFT : uint 343 | { 344 | MFT_STRING = 0x00000000, 345 | MFT_BITMAP = 0x00000004, 346 | MFT_MENUBARBREAK = 0x00000020, 347 | MFT_MENUBREAK = 0x00000040, 348 | MFT_OWNERDRAW = 0x00000100, 349 | MFT_RADIOCHECK = 0x00000200, 350 | MFT_SEPARATOR = 0x00000800, 351 | MFT_RIGHTORDER = 0x00002000, 352 | MFT_RIGHTJUSTIFY = 0x00004000 353 | } 354 | 355 | internal enum MFS : uint 356 | { 357 | MFS_ENABLED = 0x00000000, 358 | MFS_UNCHECKED = 0x00000000, 359 | MFS_UNHILITE = 0x00000000, 360 | MFS_GRAYED = 0x00000003, 361 | MFS_DISABLED = 0x00000003, 362 | MFS_CHECKED = 0x00000008, 363 | MFS_HILITE = 0x00000080, 364 | MFS_DEFAULT = 0x00001000 365 | } 366 | 367 | internal enum MF : uint 368 | { 369 | MF_BYCOMMAND = 0x00000000, 370 | MF_BYPOSITION = 0x00000400, 371 | MF_POPUP = 0x00000010 372 | } 373 | 374 | #endregion 375 | 376 | 377 | internal class NativeMethods 378 | { 379 | /// 380 | /// Retrieve the names of dropped files that result from a successful drag- 381 | /// and-drop operation. 382 | /// 383 | /// 384 | /// Identifier of the structure that contains the file names of the dropped 385 | /// files. 386 | /// 387 | /// 388 | /// Index of the file to query. If the value of this parameter is 0xFFFFFFFF, 389 | /// DragQueryFile returns a count of the files dropped. 390 | /// 391 | /// 392 | /// The address of a buffer that receives the file name of a dropped file 393 | /// when the function returns. 394 | /// 395 | /// 396 | /// The size, in characters, of the pszFile buffer. 397 | /// 398 | /// A non-zero value indicates a successful call. 399 | [DllImport("shell32", CharSet = CharSet.Unicode)] 400 | public static extern uint DragQueryFile( 401 | IntPtr hDrop, 402 | uint iFile, 403 | StringBuilder pszFile, 404 | int cch); 405 | 406 | /// 407 | /// Free the specified storage medium. 408 | /// 409 | /// 410 | /// Reference of the storage medium that is to be freed. 411 | /// 412 | [DllImport("ole32.dll", CharSet = CharSet.Unicode)] 413 | public static extern void ReleaseStgMedium(ref STGMEDIUM pmedium); 414 | 415 | /// 416 | /// Insert a new menu item at the specified position in a menu. 417 | /// 418 | /// 419 | /// A handle to the menu in which the new menu item is inserted. 420 | /// 421 | /// 422 | /// The identifier or position of the menu item before which to insert the 423 | /// new item. The meaning of this parameter depends on the value of 424 | /// fByPosition. 425 | /// 426 | /// 427 | /// Controls the meaning of uItem. If this parameter is false, uItem is a 428 | /// menu item identifier. Otherwise, it is a menu item position. 429 | /// 430 | /// 431 | /// A reference of a MENUITEMINFO structure that contains information about 432 | /// the new menu item. 433 | /// 434 | /// 435 | /// If the function succeeds, the return value is true. 436 | /// 437 | [DllImport("user32", CharSet = CharSet.Unicode, SetLastError = true)] 438 | [return: MarshalAs(UnmanagedType.Bool)] 439 | public static extern bool InsertMenuItem( 440 | IntPtr hMenu, 441 | uint uItem, 442 | [MarshalAs(UnmanagedType.Bool)] bool fByPosition, 443 | ref MENUITEMINFO mii); 444 | 445 | /// 446 | /// Inserts a new menu item into a menu, moving other items down the menu. 447 | /// 448 | /// 449 | /// A handle to the menu to be changed. 450 | /// 451 | /// 452 | /// The menu item before which the new menu item is to be inserted, as 453 | /// determined by the uFlags parameter. 454 | /// 455 | /// 456 | /// Controls the interpretation of the uPosition parameter and the content, 457 | /// appearance, and behavior of the new menu item. 458 | /// 459 | /// 460 | /// The identifier of the new menu item or, if the uFlags parameter has the 461 | /// MF_POPUP flag set, a handle to the drop-down menu or submenu. 462 | /// 463 | /// 464 | /// The content of the new menu item. 465 | /// 466 | /// 467 | /// If the function succeeds, the return value is true. 468 | /// 469 | [DllImport("user32", CharSet = CharSet.Unicode, SetLastError = true)] 470 | [return: MarshalAs(UnmanagedType.Bool)] 471 | public static extern bool InsertMenu( 472 | IntPtr hMenu, 473 | uint uItem, 474 | uint uFlags, 475 | uint itemId, 476 | [MarshalAs(UnmanagedType.LPTStr)] string itemText); 477 | 478 | [DllImport("user32")] 479 | public static extern IntPtr CreateMenu(); 480 | 481 | [DllImport("user32")] 482 | public static extern IntPtr CreatePopupMenu(); 483 | 484 | /// 485 | /// The DeleteObject function deletes a logical pen, brush, font, bitmap, 486 | /// region, or palette, freeing all system resources associated with the 487 | /// object. After the object is deleted, the specified handle is no longer 488 | /// valid. 489 | /// 490 | /// 491 | /// A handle to a logical pen, brush, font, bitmap, region, or palette. 492 | /// 493 | /// 494 | /// If the function succeeds, the return value is true. 495 | /// 496 | [DllImport("gdi32.dll", CharSet = CharSet.Unicode, SetLastError = true)] 497 | public static extern bool DeleteObject(IntPtr hObject); 498 | 499 | 500 | public static int HighWord(int number) 501 | { 502 | return ((number & 0x80000000) == 0x80000000) ? 503 | (number >> 16) : ((number >> 16) & 0xffff); 504 | } 505 | 506 | public static int LowWord(int number) 507 | { 508 | return number & 0xffff; 509 | } 510 | } 511 | 512 | internal static class WinError 513 | { 514 | public const int S_OK = 0x0000; 515 | public const int S_FALSE = 0x0001; 516 | public const int E_FAIL = -2147467259; 517 | public const int E_INVALIDARG = -2147024809; 518 | public const int E_OUTOFMEMORY = -2147024882; 519 | public const int STRSAFE_E_INSUFFICIENT_BUFFER = -2147024774; 520 | 521 | public const uint SEVERITY_SUCCESS = 0; 522 | public const uint SEVERITY_ERROR = 1; 523 | 524 | /// 525 | /// Create an HRESULT value from component pieces. 526 | /// 527 | /// The severity to be used 528 | /// The facility to be used 529 | /// The error number 530 | /// A HRESULT constructed from the above 3 values 531 | public static int MAKE_HRESULT(uint sev, uint fac, uint code) 532 | { 533 | return (int)((sev << 31) | (fac << 16) | code); 534 | } 535 | } 536 | } -------------------------------------------------------------------------------- /FileContextMenuExt.cs: -------------------------------------------------------------------------------- 1 | using CSShellExtContextMenuHandler; 2 | using SevenZip; 3 | using System; 4 | using System.Drawing; 5 | using System.IO; 6 | using System.Linq; 7 | using System.Runtime.InteropServices; 8 | using System.Runtime.InteropServices.ComTypes; 9 | using System.Text; 10 | using ZipInfoShell.Properties; 11 | using IDataObject = System.Runtime.InteropServices.ComTypes.IDataObject; 12 | 13 | 14 | namespace ZipInfoShell 15 | { 16 | [ClassInterface(ClassInterfaceType.None)] 17 | [Guid("E07DD184-C1C7-4315-90C0-9A8A6582E671"), ComVisible(true)] 18 | public class FileContextMenuExt : IShellExtInit, IContextMenu 19 | { 20 | private string selectedFile; 21 | 22 | private string menuText = "&压缩文件信息"; 23 | private IntPtr menuBmp = IntPtr.Zero; 24 | private string verb = "zipFileInfo"; 25 | private string verbCanonicalName = "GetZipFileInfo"; 26 | private string verbHelpText = "ExtractZipFileInfo"; 27 | private uint IDM_DISPLAY = 0; 28 | 29 | 30 | public FileContextMenuExt() 31 | { 32 | // Load the bitmap for the menu item. 33 | Bitmap bmp = Resources.zip; 34 | bmp.MakeTransparent(bmp.GetPixel(0, 0)); 35 | this.menuBmp = bmp.GetHbitmap(); 36 | } 37 | 38 | ~FileContextMenuExt() 39 | { 40 | if (this.menuBmp != IntPtr.Zero) 41 | { 42 | NativeMethods.DeleteObject(this.menuBmp); 43 | this.menuBmp = IntPtr.Zero; 44 | } 45 | } 46 | 47 | 48 | void Unzip2NewFolder(IntPtr hWnd) 49 | { 50 | SetLibraryPath(); 51 | 52 | string zipFilePath = this.selectedFile; 53 | FileInfo fi= new FileInfo(zipFilePath); 54 | if (!fi.Exists) 55 | { 56 | return; 57 | } 58 | 59 | string pureFileName = Path.GetFileNameWithoutExtension(zipFilePath); 60 | string extractFolder = Path.Combine(fi.Directory.FullName,pureFileName); 61 | if (!Directory.Exists(extractFolder)) 62 | { 63 | Directory.CreateDirectory(extractFolder); 64 | } 65 | 66 | using (var extractor = new SevenZipExtractor(zipFilePath)) 67 | { 68 | extractor.ExtractArchive(extractFolder); 69 | } 70 | 71 | } 72 | 73 | void UnzipContent(IntPtr hWnd) 74 | { 75 | SetLibraryPath(); 76 | 77 | string zipFilePath = this.selectedFile; 78 | FileInfo fi = new FileInfo(zipFilePath); 79 | if (!fi.Exists) 80 | { 81 | return; 82 | } 83 | 84 | string extractFolder = fi.Directory.FullName; 85 | using (var extractor = new SevenZipExtractor(zipFilePath)) 86 | { 87 | extractor.ExtractArchive(extractFolder); 88 | } 89 | } 90 | 91 | private void SetLibraryPath() 92 | { 93 | //var filePath = @"E:\zyx\projects\ToolProject\ZipInfoShell\bin\Debug"; 94 | var filePath = Environment.CurrentDirectory; 95 | SevenZipBase.SetLibraryPath(Path.Combine(filePath, "7z.dll")); 96 | } 97 | 98 | private ZipFileInfo SummaryZipInfo(string fileName) 99 | { 100 | var zipInfo = new ZipFileInfo(); 101 | 102 | SetLibraryPath(); 103 | using (var entries = new SevenZipExtractor(fileName)) 104 | { 105 | zipInfo.FileCount = entries.FilesCount; 106 | 107 | var firstLevelEntries = entries.ArchiveFileData 108 | .Where(entry => !entry.FileName.Contains(Path.DirectorySeparatorChar)) 109 | .ToList(); 110 | 111 | zipInfo.FirstLevelFileCount = firstLevelEntries.Count(entry => !entry.IsDirectory); 112 | zipInfo.FirstLevelDirectoryCount = firstLevelEntries.Count(entry => entry.IsDirectory); 113 | 114 | } 115 | return zipInfo; 116 | } 117 | 118 | 119 | /// 120 | /// 关联的文件类型 121 | /// 122 | 123 | [ComRegisterFunction()] 124 | public static void Register(Type t) 125 | { 126 | try 127 | { 128 | ShellExtReg.RegisterShellExtContextMenuHandler(t.GUID, ".zip", "ZipInfoShell.FileContextMenuExt Class"); 129 | ShellExtReg.RegisterShellExtContextMenuHandler(t.GUID, ".7z", "ZipInfoShell.FileContextMenuExt Class"); 130 | ShellExtReg.RegisterShellExtContextMenuHandler(t.GUID, ".rar", "ZipInfoShell.FileContextMenuExt Class"); 131 | ShellExtReg.RegisterShellExtContextMenuHandler(t.GUID, ".gz", "ZipInfoShell.FileContextMenuExt Class"); 132 | ShellExtReg.RegisterShellExtContextMenuHandler(t.GUID, ".tar", "ZipInfoShell.FileContextMenuExt Class"); 133 | } 134 | catch (Exception ex) 135 | { 136 | Console.WriteLine(ex.Message); // Log the error 137 | throw; // Re-throw the exception 138 | } 139 | } 140 | 141 | [ComUnregisterFunction()] 142 | public static void Unregister(Type t) 143 | { 144 | try 145 | { 146 | ShellExtReg.UnregisterShellExtContextMenuHandler(t.GUID, ".zip"); 147 | ShellExtReg.UnregisterShellExtContextMenuHandler(t.GUID, ".7z"); 148 | ShellExtReg.UnregisterShellExtContextMenuHandler(t.GUID, ".rar"); 149 | ShellExtReg.UnregisterShellExtContextMenuHandler(t.GUID, ".gz"); 150 | ShellExtReg.UnregisterShellExtContextMenuHandler(t.GUID, ".tar"); 151 | } 152 | catch (Exception ex) 153 | { 154 | Console.WriteLine(ex.Message); // Log the error 155 | throw; // Re-throw the exception 156 | } 157 | } 158 | 159 | 160 | /// 161 | /// Initialize the context menu handler. 162 | /// 163 | /// 164 | /// A pointer to an ITEMIDLIST structure that uniquely identifies a folder. 165 | /// 166 | /// 167 | /// A pointer to an IDataObject interface object that can be used to retrieve 168 | /// the objects being acted upon. 169 | /// 170 | /// 171 | /// The registry key for the file object or folder type. 172 | /// 173 | public void Initialize(IntPtr pidlFolder, IntPtr pDataObj, IntPtr hKeyProgID) 174 | { 175 | if (pDataObj == IntPtr.Zero) 176 | { 177 | throw new ArgumentException(); 178 | } 179 | 180 | FORMATETC fe = new FORMATETC(); 181 | fe.cfFormat = (short)CLIPFORMAT.CF_HDROP; 182 | fe.ptd = IntPtr.Zero; 183 | fe.dwAspect = DVASPECT.DVASPECT_CONTENT; 184 | fe.lindex = -1; 185 | fe.tymed = TYMED.TYMED_HGLOBAL; 186 | STGMEDIUM stm = new STGMEDIUM(); 187 | 188 | // The pDataObj pointer contains the objects being acted upon. In this 189 | // example, we get an HDROP handle for enumerating the selected files 190 | // and folders. 191 | IDataObject dataObject = (IDataObject)Marshal.GetObjectForIUnknown(pDataObj); 192 | dataObject.GetData(ref fe, out stm); 193 | 194 | try 195 | { 196 | // Get an HDROP handle. 197 | IntPtr hDrop = stm.unionmember; 198 | if (hDrop == IntPtr.Zero) 199 | { 200 | throw new ArgumentException(); 201 | } 202 | 203 | // Determine how many files are involved in this operation. 204 | uint nFiles = NativeMethods.DragQueryFile(hDrop, UInt32.MaxValue, null, 0); 205 | 206 | // This code sample displays the custom context menu item when only 207 | // one file is selected. 208 | if (nFiles == 1) 209 | { 210 | // Get the path of the file. 211 | StringBuilder fileName = new StringBuilder(260); 212 | if (0 == NativeMethods.DragQueryFile(hDrop, 0, fileName, fileName.Capacity)) 213 | { 214 | Marshal.ThrowExceptionForHR(WinError.E_FAIL); 215 | } 216 | this.selectedFile = fileName.ToString(); 217 | } 218 | else 219 | { 220 | Marshal.ThrowExceptionForHR(WinError.E_FAIL); 221 | } 222 | 223 | // [-or-] 224 | 225 | // Enumerate the selected files and folders. 226 | //if (nFiles > 0) 227 | //{ 228 | // StringCollection selectedFiles = new StringCollection(); 229 | // StringBuilder fileName = new StringBuilder(260); 230 | // for (uint i = 0; i < nFiles; i++) 231 | // { 232 | // // Get the next file name. 233 | // if (0 != NativeMethods.DragQueryFile(hDrop, i, fileName, 234 | // fileName.Capacity)) 235 | // { 236 | // // Add the file name to the list. 237 | // selectedFiles.Add(fileName.ToString()); 238 | // } 239 | // } 240 | // 241 | // // If we did not find any files we can work with, throw 242 | // // exception. 243 | // if (selectedFiles.Count == 0) 244 | // { 245 | // Marshal.ThrowExceptionForHR(WinError.E_FAIL); 246 | // } 247 | //} 248 | //else 249 | //{ 250 | // Marshal.ThrowExceptionForHR(WinError.E_FAIL); 251 | //} 252 | } 253 | finally 254 | { 255 | NativeMethods.ReleaseStgMedium(ref stm); 256 | } 257 | } 258 | 259 | 260 | /// 261 | /// Add commands to a shortcut menu. 262 | /// 263 | /// A handle to the shortcut menu. 264 | /// 265 | /// The zero-based position at which to insert the first new menu item. 266 | /// 267 | /// 268 | /// The minimum value that the handler can specify for a menu item ID. 269 | /// 270 | /// 271 | /// The maximum value that the handler can specify for a menu item ID. 272 | /// 273 | /// 274 | /// Optional flags that specify how the shortcut menu can be changed. 275 | /// 276 | /// 277 | /// If successful, returns an HRESULT value that has its severity value set 278 | /// to SEVERITY_SUCCESS and its code value set to the offset of the largest 279 | /// command identifier that was assigned, plus one. 280 | /// 281 | public int QueryContextMenu(IntPtr hMenu, uint iMenu, uint idCmdFirst, uint idCmdLast, uint uFlags) 282 | { 283 | // If uFlags include CMF_DEFAULTONLY then we should not do anything. 284 | if (((uint)CMF.CMF_DEFAULTONLY & uFlags) != 0) 285 | { 286 | return WinError.MAKE_HRESULT(WinError.SEVERITY_SUCCESS, 0, 0); 287 | } 288 | 289 | var zipInfo = SummaryZipInfo(this.selectedFile); 290 | menuText = $"&{zipInfo.ToString()}"; 291 | string subMenu1Text = zipInfo.Unzip2NewFolder ? $"解压至新目录(推荐)" : "解压至新目录"; 292 | string subMenu2Text = zipInfo.Unzip2NewFolder ? $"解压至当前目录" : "解压至当前目录(推荐)"; 293 | 294 | //string subMenu1Text = "test1"; 295 | //string subMenu2Text = "test2"; 296 | 297 | 298 | IntPtr hSubMenu = NativeMethods.CreatePopupMenu(); 299 | 300 | // 向子菜单添加项 301 | uint idCmd = IDM_DISPLAY; 302 | NativeMethods.InsertMenu(hSubMenu, (uint)0, (uint)MF.MF_BYPOSITION | (uint)MFT.MFT_STRING, idCmdFirst + (idCmd++), subMenu1Text); 303 | NativeMethods.InsertMenu(hSubMenu, (uint)1, (uint)MF.MF_BYPOSITION | (uint)MFT.MFT_STRING, idCmdFirst + (idCmd++), subMenu2Text); 304 | 305 | // Use either InsertMenu or InsertMenuItem to add menu items. 306 | MENUITEMINFO mii = new MENUITEMINFO(); 307 | mii.cbSize = (uint)Marshal.SizeOf(mii); 308 | mii.fMask = MIIM.MIIM_BITMAP | MIIM.MIIM_STRING | MIIM.MIIM_FTYPE | MIIM.MIIM_SUBMENU | MIIM.MIIM_ID | MIIM.MIIM_STATE; 309 | mii.wID = idCmdFirst + IDM_DISPLAY; 310 | mii.fType = MFT.MFT_STRING; 311 | mii.hSubMenu = hSubMenu; 312 | mii.dwTypeData = this.menuText; 313 | mii.fState = MFS.MFS_ENABLED; 314 | mii.hbmpItem = this.menuBmp; 315 | if (!NativeMethods.InsertMenuItem(hMenu, iMenu, true, ref mii)) 316 | { 317 | return Marshal.GetHRForLastWin32Error(); 318 | } 319 | 320 | // Add a separator. 321 | MENUITEMINFO sep = new MENUITEMINFO(); 322 | sep.cbSize = (uint)Marshal.SizeOf(sep); 323 | sep.fMask = MIIM.MIIM_TYPE; 324 | sep.fType = MFT.MFT_SEPARATOR; 325 | if (!NativeMethods.InsertMenuItem(hMenu, iMenu + 1, true, ref sep)) 326 | { 327 | return Marshal.GetHRForLastWin32Error(); 328 | } 329 | 330 | // Return an HRESULT value with the severity set to SEVERITY_SUCCESS. 331 | // Set the code value to the offset of the largest command identifier 332 | // that was assigned, plus one (1). 333 | return WinError.MAKE_HRESULT(WinError.SEVERITY_SUCCESS, 0, idCmd); 334 | } 335 | 336 | /// 337 | /// Carry out the command associated with a shortcut menu item. 338 | /// 339 | /// 340 | /// A pointer to a CMINVOKECOMMANDINFO or CMINVOKECOMMANDINFOEX structure 341 | /// containing information about the command. 342 | /// 343 | public void InvokeCommand(IntPtr pici) 344 | { 345 | bool isUnicode = false; 346 | 347 | // Determine which structure is being passed in, CMINVOKECOMMANDINFO or 348 | // CMINVOKECOMMANDINFOEX based on the cbSize member of lpcmi. Although 349 | // the lpcmi parameter is declared in Shlobj.h as a CMINVOKECOMMANDINFO 350 | // structure, in practice it often points to a CMINVOKECOMMANDINFOEX 351 | // structure. This struct is an extended version of CMINVOKECOMMANDINFO 352 | // and has additional members that allow Unicode strings to be passed. 353 | CMINVOKECOMMANDINFO ici = (CMINVOKECOMMANDINFO)Marshal.PtrToStructure(pici, typeof(CMINVOKECOMMANDINFO)); 354 | CMINVOKECOMMANDINFOEX iciex = new CMINVOKECOMMANDINFOEX(); 355 | if (ici.cbSize == Marshal.SizeOf(typeof(CMINVOKECOMMANDINFOEX))) 356 | { 357 | if ((ici.fMask & CMIC.CMIC_MASK_UNICODE) != 0) 358 | { 359 | isUnicode = true; 360 | iciex = (CMINVOKECOMMANDINFOEX)Marshal.PtrToStructure(pici, typeof(CMINVOKECOMMANDINFOEX)); 361 | } 362 | } 363 | 364 | // Determines whether the command is identified by its offset or verb. 365 | // There are two ways to identify commands: 366 | // 367 | // 1) The command's verb string 368 | // 2) The command's identifier offset 369 | // 370 | // If the high-order word of lpcmi->lpVerb (for the ANSI case) or 371 | // lpcmi->lpVerbW (for the Unicode case) is nonzero, lpVerb or lpVerbW 372 | // holds a verb string. If the high-order word is zero, the command 373 | // offset is in the low-order word of lpcmi->lpVerb. 374 | 375 | // For the ANSI case, if the high-order word is not zero, the command's 376 | // verb string is in lpcmi->lpVerb. 377 | if (!isUnicode && NativeMethods.HighWord(ici.verb.ToInt32()) != 0) 378 | { 379 | // Is the verb supported by this context menu extension? 380 | if (Marshal.PtrToStringAnsi(ici.verb) == this.verb) 381 | { 382 | 383 | } 384 | else 385 | { 386 | // If the verb is not recognized by the context menu handler, it 387 | // must return E_FAIL to allow it to be passed on to the other 388 | // context menu handlers that might implement that verb. 389 | Marshal.ThrowExceptionForHR(WinError.E_FAIL); 390 | } 391 | } 392 | 393 | // For the Unicode case, if the high-order word is not zero, the 394 | // command's verb string is in lpcmi->lpVerbW. 395 | else if (isUnicode && NativeMethods.HighWord(iciex.verbW.ToInt32()) != 0) 396 | { 397 | // Is the verb supported by this context menu extension? 398 | if (Marshal.PtrToStringUni(iciex.verbW) == this.verb) 399 | { 400 | 401 | } 402 | else 403 | { 404 | // If the verb is not recognized by the context menu handler, it 405 | // must return E_FAIL to allow it to be passed on to the other 406 | // context menu handlers that might implement that verb. 407 | Marshal.ThrowExceptionForHR(WinError.E_FAIL); 408 | } 409 | } 410 | 411 | // If the command cannot be identified through the verb string, then 412 | // check the identifier offset. 413 | else 414 | { 415 | // Is the command identifier offset supported by this context menu 416 | // extension? 417 | if (NativeMethods.LowWord(ici.verb.ToInt32()) == IDM_DISPLAY) 418 | { 419 | Unzip2NewFolder(ici.hwnd); 420 | } 421 | else if (NativeMethods.LowWord(ici.verb.ToInt32()) == (IDM_DISPLAY + 1)) 422 | { 423 | UnzipContent(ici.hwnd); 424 | } 425 | else 426 | { 427 | // If the verb is not recognized by the context menu handler, it 428 | // must return E_FAIL to allow it to be passed on to the other 429 | // context menu handlers that might implement that verb. 430 | Marshal.ThrowExceptionForHR(WinError.E_FAIL); 431 | } 432 | } 433 | } 434 | 435 | /// 436 | /// Get information about a shortcut menu command, including the help string 437 | /// and the language-independent, or canonical, name for the command. 438 | /// 439 | /// Menu command identifier offset. 440 | /// 441 | /// Flags specifying the information to return. This parameter can have one 442 | /// of the following values: GCS_HELPTEXTA, GCS_HELPTEXTW, GCS_VALIDATEA, 443 | /// GCS_VALIDATEW, GCS_VERBA, GCS_VERBW. 444 | /// 445 | /// Reserved. Must be IntPtr.Zero 446 | /// 447 | /// The address of the buffer to receive the null-terminated string being 448 | /// retrieved. 449 | /// 450 | /// 451 | /// Size of the buffer, in characters, to receive the null-terminated string. 452 | /// 453 | public void GetCommandString(UIntPtr idCmd, uint uFlags, IntPtr pReserved, StringBuilder pszName, uint cchMax) 454 | { 455 | if (idCmd.ToUInt32() == IDM_DISPLAY) 456 | { 457 | switch ((GCS)uFlags) 458 | { 459 | case GCS.GCS_VERBW: 460 | if (this.verbCanonicalName.Length > cchMax - 1) 461 | { 462 | Marshal.ThrowExceptionForHR(WinError.STRSAFE_E_INSUFFICIENT_BUFFER); 463 | } 464 | else 465 | { 466 | pszName.Clear(); 467 | pszName.Append(this.verbCanonicalName); 468 | } 469 | break; 470 | 471 | case GCS.GCS_HELPTEXTW: 472 | if (this.verbHelpText.Length > cchMax - 1) 473 | { 474 | Marshal.ThrowExceptionForHR(WinError.STRSAFE_E_INSUFFICIENT_BUFFER); 475 | } 476 | else 477 | { 478 | pszName.Clear(); 479 | pszName.Append(this.verbHelpText); 480 | } 481 | break; 482 | } 483 | } 484 | } 485 | 486 | 487 | } 488 | 489 | } 490 | --------------------------------------------------------------------------------