autohotkey 符号链接 软连接 symbolink

使用objFolder=Shell.Application.NameSpace（文件夹）、objFolderItem=..ParseName（文件），objFolder.GetDetailsOf(objFolderItem, iColumn)，Windows 资源管理器 列
参见代码中的说明、链接。

包含隐式命令行访问方式（COM方式访问，WScript.Shell、AttachConsole、objExec := objShell.Exec、cmd_result := objExec.StdOut.ReadAll()、dir /al）

;i need help, how can i check a file is a "Symlink" file - Ask for Help - AutoHotkey Community
#SingleInstance, Force
;https://autohotkey.com/board/topic/116161-i-need-help-how-can-i-check-a-file-is-a-symlink-file/page-2#entry671220
SetBatchLines -1
ComObjError(false)

;~ symlink=symlink_Shell
symlink=symlink_Cmd
previous:=Clipboard
Loop{
    InputBox, OutputVar_file, Test, Input file/folder path to check,,,180,,,,,% previous
    if ErrorLevel
        ExitApp
    previous:=Trim(OutputVar_file,"""")
    if not FileExist(OutputVar_file)
        continue
    if %symlink%(OutputVar_file,target,type)
        MsgBox % OutputVar_file " is a symlink.`nTarget: " target "`nType: " type
    else
        MsgBox "%OutputVar_file%" is not a symlink
}
;https://autohotkey.com/board/topic/116161-i-need-help-how-can-i-check-a-file-is-a-symlink-file/page-2#entry671199
symlink_Shell(filepath,ByRef target="", ByRef type="")
{
    SplitPath, filepath , FileName, DirPath,
    objShell :=   ComObjCreate("Shell.Application")
    objFolder :=   objShell.NameSpace(DirPath)      ;set the directry path
    objFolderItem :=   objFolder.ParseName(FileName)   ;set the file name
    att := objFolder.GetDetailsOf(objFolderItem, 6)
    ;    6: attributes (see iColumn bellow)
    ;    L: Link?
    status := objFolder.GetDetailsOf(objFolderItem, 202)
    ;    202: link status (see iColumn bellow)
    ;    "未解析“ test from symlink or normal file / folder
    target := objFolder.GetDetailsOf(objFolderItem, 203)
    ;    203: Link target (absolute) (see iColumn bellow)
    ;iColumn:
    ;    Folder.GetDetailsOf method (Shlobj\_core.h) - Win32 apps | Microsoft Docs
    ;        https://docs.microsoft.com/en-us/windows/win32/shell/folder-getdetailsof
    ;    c# - What options are available for Shell32.Folder.GetDetailsOf(..,..)? - Stack Overflow
    ;        https://stackoverflow.com/questions/22382010/what-options-are-available-for-shell32-folder-getdetailsof
    if (att="AL")
        type:="File"
    else if (att="DL")
        type := "Folder"
    ;else assert(att="A")
    if (att="AL" or att="DL")
        return 1
    else
        return 0
}
;    https://autohotkey.com/board/topic/116161-i-need-help-how-can-i-check-a-file-is-a-symlink-file/page-2#entry671733
symlink_Cmd(filepath,ByRef target="", ByRef type="")
{
    if RegExMatch(filepath,"^w:\?$") ;returns 0 if it is a root directory
        return 0
    SplitPath, filepath , fn, pdir
    dhw := A_DetectHiddenWindows
    DetectHiddenWindows On
    Run "%ComSpec%" /k,, Hide, pid
    while !(hConsole := WinExist("ahk_pid" pid))
        Sleep 10
    DllCall("AttachConsole", "UInt", pid)
    DetectHiddenWindows %dhw%
    objShell := ComObjCreate("WScript.Shell")
    objExec := objShell.Exec(comspec " /c dir /al """ (InStr(FileExist(filepath),"D") ? pdir "" : filepath) """")
    While !objExec.Status
        Sleep 100
    cmd_result := objExec.StdOut.ReadAll()
    DllCall("FreeConsole")
    Process Exist, %pid%
    if (ErrorLevel == pid)
        Process Close, %pid%
    if RegExMatch(cmd_result,"<(.+?)>.*?Q" fn "E.*?[(.+?)]",m)
    {
        type:=m1, target:=m2
        ;    target: original (maybe relative)
        if (type="SYMLINK")
            type := "File"
        else if (type="SYMLINKD")
            type := "Directory"
        return 1
    }
    else
        return 0
}

 扩展：[Function] FilesHardLinked() - Detect if two files are hardlinks (links pointing to the same file) - AutoHotkey Community