C# 调用WinAPI实现系统功能

1、清空回收站

　　原型：

SHSTDAPI SHEmptyRecycleBin(
    HWND hwnd, 
    LPCTSTR pszRootPath, 
    DWORD dwFlags
);

　　C#调用：　　

　　　　enum RecycleFlags : uint
        {
            /// <summary>
            /// 显示删除确认对话框
            /// </summary>
            SHERB_NOCONFIRMATION = 0x00000001,

            /// <summary>
            /// 显示删除进度
            /// </summary>
            SHERB_NOPROGRESSUI = 0x00000002,

            /// <summary>
            /// 删除完成播放声音
            /// </summary>
            SHERB_NOSOUND = 0x00000004
        }

        /// <summary>
        /// 清空回收站
        /// </summary>
        /// <param name="hwnd"></param>
        /// <param name="pszRootPath"></param>
        /// <param name="dwFlags"></param>
        /// <returns></returns>
        [DllImport("Shell32.dll",CharSet=CharSet.Unicode)]
        static extern uint SHEmptyRecycleBin(IntPtr hwnd, string pszRootPath, RecycleFlags dwFlags);