C#通过调用SharpShell实现自定义系统右键菜单

SharpShell 是通过对Windows Shell 封装来实现.net 的调用

https://github.com/dwmkerr/sharpshell

根据官方的Demo修改的复制文件路径功能

创建类库 ShellExtension

namespace ShellExtension
{
    // <summary>
    // 动态添加系统右键菜单
    // </summary>
    [ComVisible(true)]
    [COMServerAssociation(AssociationType.AllFiles)]
    [COMServerAssociation(AssociationType.Directory)]
    [COMServerAssociation(AssociationType.DesktopBackground)]
    [COMServerAssociation(AssociationType.DirectoryBackground)]
    [COMServerAssociation(AssociationType.Folder)]
    public class DynamicSubMenuExtension : SharpContextMenu
    {
        //创建的菜单
        private ContextMenuStrip menu = new ContextMenuStrip();

        /// <summary>
        /// 是否显示菜单
        /// </summary>
        protected override bool CanShowMenu()
        {
            this.UpdateMenu();
            return true;
        }

        protected override ContextMenuStrip CreateMenu()
        {
            menu.Items.Clear();
            this.MenuDefault();
            if (SelectedItemPaths.Count() > 0)
            {
                FileAttributes attr = File.GetAttributes(SelectedItemPaths.First());
                //判断文件还是文件夹 也可以判断文件扩展名 甚至解析文件内容 实现类似于压缩软件的效果
                if (attr.HasFlag(FileAttributes.Directory))
                {
                    this.MenuDirectory();
                }
                else
                {
                    this.MenuFiles();
                }
            }
            return menu;
        }

        /// <summary>
        /// 更新菜单
        /// </summary>
        private void UpdateMenu()
        {
            menu.Dispose();
            menu = CreateMenu();
        }

        protected void MenuDefault()
        {
            var CopyPathMenu = new ToolStripMenuItem
            {
                Text = "复制路径",
                Image = Image.FromFile("图片.png")
            };
            CopyPathMenu.Click += (sender, args) =>
            {
                if (SelectedItemPaths.Count() > 0)
                {
                    var str = new StringBuilder();
                    foreach (var item in SelectedItemPaths)
                    {
                        str.Append(item).AppendLine();
                    }
                    Clipboard.SetText(str.ToString().Trim());
                }
                else
                {
                    Clipboard.SetText(FolderPath);
                }
            };
            menu.Items.Add(CopyPathMenu);
        }

        /// <summary>
        /// 创建目录的菜单
        /// </summary>
        protected void MenuDirectory()
        {
        }

        // <summary>
        // 创建文件的菜单
        // </summary>
        protected void MenuFiles()
        {
        }
    }
}

创建菜单使用和普通WindowsForms控件一样
把代码编译成dll

创建安装运用

在任意运用中写代码就可以 注意使用管理员权限

安装Dll

string path = "Dll的路径";
var regasm = new RegAsm();
var success = Environment.Is64BitOperatingSystem ?
    regasm.Register64(path, true) :
    regasm.Register32(path, true);
if (success)
{
    MessageBox.Show("successfully");
}
else
{
    MessageBox.Show("Failed");
}            

卸载Dll

string path = "Dll的路径";
var regasm = new RegAsm();
var success = Environment.Is64BitOperatingSystem ?
    regasm.Unregister64(path) :
    regasm.Unregister64(path);
if (success)
{
    MessageBox.Show("successfully");
}
else
{
    MessageBox.Show("Failed");
} 
ExplorerManager.RestartExplorer();           

要重新编译Dll需要卸载重启文件资源管理器 否则编译会失败
图片大小要使用16*16