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【C#】获取"我的电脑"的名字,如This PC、这台计算机

日期:2018-05-25点击:483
原文: 【C#】获取"我的电脑"的名字,如This PC、这台计算机

注意:这里获取的【我的电脑】的名字,不是机器的名字。如图所示:


要获取的是This PC这个字符串。

-------------------------------------------------------------------

机器的名字可以通过系统属性查看,叫做Computer Name,如下图:


我的就是cn-c-w-725,如果想获取这个字符串直接调用Environment.MachineName就行了。

1.定义ShellAPI

 public static class ShellAPI { public const int MAX_PATH = 260; public const uint CMD_FIRST = 1; public const uint CMD_LAST = 30000; public const int S_OK = 0, S_FALSE = 1; public const int DRAGDROP_S_DROP = 0x00040100; public const int DRAGDROP_S_CANCEL = 0x00040101; public const int DRAGDROP_S_USEDEFAULTCURSORS = 0x00040102; public static int cbFileInfo = Marshal.SizeOf(typeof(SHFILEINFO)); // Retrieves information about an object in the file system, // such as a file, a folder, a directory, or a drive root. [DllImport("shell32", EntryPoint = "SHGetFileInfo", ExactSpelling = false, CharSet = CharSet.Auto, SetLastError = true)] public static extern IntPtr SHGetFileInfo( IntPtr ppidl, FILE_ATTRIBUTE dwFileAttributes, ref SHFILEINFO sfi, int cbFileInfo, SHGFI uFlags); [DllImport("Shell32", EntryPoint = "SHGetSpecialFolderLocation", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)] public static extern Int32 SHGetSpecialFolderLocation( IntPtr hwndOwner, CSIDL nFolder, out IntPtr ppidl); // This function takes the fully-qualified pointer to an item // identifier list (PIDL) of a namespace object, and returns a specified // interface pointer on the parent object. [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct SHFILEINFO { public IntPtr hIcon; public int iIcon; public SFGAO dwAttributes; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = MAX_PATH)] public string szDisplayName; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)] public string szTypeName; } // Flags that specify the file information to retrieve with SHGetFileInfo [Flags] public enum FILE_ATTRIBUTE { READONLY = 0x00000001, HIDDEN = 0x00000002, SYSTEM = 0x00000004, DIRECTORY = 0x00000010, ARCHIVE = 0x00000020, DEVICE = 0x00000040, NORMAL = 0x00000080, TEMPORARY = 0x00000100, SPARSE_FILE = 0x00000200, REPARSE_POINT = 0x00000400, COMPRESSED = 0x00000800, OFFLINE = 0x00001000, NOT_CONTENT_INDEXED = 0x00002000, ENCRYPTED = 0x00004000 } // The attributes that the caller is requesting, when calling IShellFolder::GetAttributesOf [Flags] public enum SFGAO : uint { BROWSABLE = 0x8000000, CANCOPY = 1, CANDELETE = 0x20, CANLINK = 4, CANMONIKER = 0x400000, CANMOVE = 2, CANRENAME = 0x10, CAPABILITYMASK = 0x177, COMPRESSED = 0x4000000, CONTENTSMASK = 0x80000000, DISPLAYATTRMASK = 0xfc000, DROPTARGET = 0x100, ENCRYPTED = 0x2000, FILESYSANCESTOR = 0x10000000, FILESYSTEM = 0x40000000, FOLDER = 0x20000000, GHOSTED = 0x8000, HASPROPSHEET = 0x40, HASSTORAGE = 0x400000, HASSUBFOLDER = 0x80000000, HIDDEN = 0x80000, ISSLOW = 0x4000, LINK = 0x10000, NEWCONTENT = 0x200000, NONENUMERATED = 0x100000, READONLY = 0x40000, REMOVABLE = 0x2000000, SHARE = 0x20000, STORAGE = 8, STORAGEANCESTOR = 0x800000, STORAGECAPMASK = 0x70c50008, STREAM = 0x400000, VALIDATE = 0x1000000 } // Used to retrieve directory paths to system special folders public enum CSIDL { ADMINTOOLS = 0x30, ALTSTARTUP = 0x1d, APPDATA = 0x1a, BITBUCKET = 10, CDBURN_AREA = 0x3b, COMMON_ADMINTOOLS = 0x2f, COMMON_ALTSTARTUP = 30, COMMON_APPDATA = 0x23, COMMON_DESKTOPDIRECTORY = 0x19, COMMON_DOCUMENTS = 0x2e, COMMON_FAVORITES = 0x1f, COMMON_MUSIC = 0x35, COMMON_PICTURES = 0x36, COMMON_PROGRAMS = 0x17, COMMON_STARTMENU = 0x16, COMMON_STARTUP = 0x18, COMMON_TEMPLATES = 0x2d, COMMON_VIDEO = 0x37, CONTROLS = 3, COOKIES = 0x21, DESKTOP = 0, DESKTOPDIRECTORY = 0x10, DRIVES = 0x11, FAVORITES = 6, FLAG_CREATE = 0x8000, FONTS = 20, HISTORY = 0x22, INTERNET = 1, INTERNET_CACHE = 0x20, LOCAL_APPDATA = 0x1c, MYDOCUMENTS = 12, MYMUSIC = 13, MYPICTURES = 0x27, MYVIDEO = 14, NETHOOD = 0x13, NETWORK = 0x12, PERSONAL = 5, PRINTERS = 4, PRINTHOOD = 0x1b, PROFILE = 40, PROFILES = 0x3e, PROGRAM_FILES = 0x26, PROGRAM_FILES_COMMON = 0x2b, PROGRAMS = 2, RECENT = 8, SENDTO = 9, STARTMENU = 11, STARTUP = 7, SYSTEM = 0x25, TEMPLATES = 0x15, WINDOWS = 0x24 } // Defines the values used with the IShellFolder::GetDisplayNameOf and IShellFolder::SetNameOf // methods to specify the type of file or folder names used by those methods // Flags that specify the file information to retrieve with SHGetFileInfo [Flags] public enum SHGFI : uint { ADDOVERLAYS = 0x20, ATTR_SPECIFIED = 0x20000, ATTRIBUTES = 0x800, DISPLAYNAME = 0x200, EXETYPE = 0x2000, ICON = 0x100, ICONLOCATION = 0x1000, LARGEICON = 0, LINKOVERLAY = 0x8000, OPENICON = 2, OVERLAYINDEX = 0x40, PIDL = 8, SELECTED = 0x10000, SHELLICONSIZE = 4, SMALLICON = 1, SYSICONINDEX = 0x4000, TYPENAME = 0x400, USEFILEATTRIBUTES = 0x10 } }


2.调用输出显示

 static void Main(string[] args) { IntPtr tempPidl; ShellAPI.SHFILEINFO info; //My Computer info = new ShellAPI.SHFILEINFO(); tempPidl = IntPtr.Zero; ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.DRIVES, out tempPidl); ShellAPI.SHGetFileInfo(tempPidl, 0, ref info, ShellAPI.cbFileInfo, ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.DISPLAYNAME | ShellAPI.SHGFI.TYPENAME); string sysfolderName = info.szTypeName; string mycompName = info.szDisplayName; Console.WriteLine(sysfolderName + "------" + mycompName); Console.WriteLine(Environment.MachineName); Console.Read(); }

mycompName就是我们想要的值.

3.再介绍一个用winform编写的功能很强大的文件管理器。与自带的差不多,调用了系统的Shell api,可以获取到特殊路径的名称,对于没有权限操作的文件会进行动态请求。如图:


CodeProject地址

如果打不开,请去csdn下载


进阶-参考另外一篇文章《【C#】WindowsAPICodePack-Shell使用教程》,地址:http://blog.csdn.net/catshitone/article/details/72723927


原文链接:https://yq.aliyun.com/articles/678512
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