DeleteGPOLink

// GPEDIT.dll
#include <windows.h>

HRESULT DeleteGPOLink(
    LPWSTR lpGPO,
    LPWSTR lpContainer
);

<DllImport("GPEDIT.dll", ExactSpelling:=True)>
Public Shared Function DeleteGPOLink(
    <MarshalAs(UnmanagedType.LPWStr)> lpGPO As String,   ' LPWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpContainer As String   ' LPWSTR
) As Integer
End Function

' lpGPO : LPWSTR
' lpContainer : LPWSTR
Declare PtrSafe Function DeleteGPOLink Lib "gpedit" ( _
    ByVal lpGPO As LongPtr, _
    ByVal lpContainer As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DeleteGPOLink = ctypes.windll.gpedit.DeleteGPOLink
DeleteGPOLink.restype = ctypes.c_int
DeleteGPOLink.argtypes = [
    wintypes.LPCWSTR,  # lpGPO : LPWSTR
    wintypes.LPCWSTR,  # lpContainer : LPWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GPEDIT.dll')
DeleteGPOLink = Fiddle::Function.new(
  lib['DeleteGPOLink'],
  [
    Fiddle::TYPE_VOIDP,  # lpGPO : LPWSTR
    Fiddle::TYPE_VOIDP,  # lpContainer : LPWSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "gpedit")]
extern "system" {
    fn DeleteGPOLink(
        lpGPO: *mut u16,  // LPWSTR
        lpContainer: *mut u16  // LPWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GPEDIT.dll")]
public static extern int DeleteGPOLink([MarshalAs(UnmanagedType.LPWStr)] string lpGPO, [MarshalAs(UnmanagedType.LPWStr)] string lpContainer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GPEDIT_DeleteGPOLink' -Namespace Win32 -PassThru
# $api::DeleteGPOLink(lpGPO, lpContainer)

#uselib "GPEDIT.dll"
#func global DeleteGPOLink "DeleteGPOLink" sptr, sptr
; DeleteGPOLink lpGPO, lpContainer   ; 戻り値は stat
; lpGPO : LPWSTR -> "sptr"
; lpContainer : LPWSTR -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "GPEDIT.dll"
#cfunc global DeleteGPOLink "DeleteGPOLink" wstr, wstr
; res = DeleteGPOLink(lpGPO, lpContainer)
; lpGPO : LPWSTR -> "wstr"
; lpContainer : LPWSTR -> "wstr"

; HRESULT DeleteGPOLink(LPWSTR lpGPO, LPWSTR lpContainer)
#uselib "GPEDIT.dll"
#cfunc global DeleteGPOLink "DeleteGPOLink" wstr, wstr
; res = DeleteGPOLink(lpGPO, lpContainer)
; lpGPO : LPWSTR -> "wstr"
; lpContainer : LPWSTR -> "wstr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	gpedit = windows.NewLazySystemDLL("GPEDIT.dll")
	procDeleteGPOLink = gpedit.NewProc("DeleteGPOLink")
)

// lpGPO (LPWSTR), lpContainer (LPWSTR)
r1, _, err := procDeleteGPOLink.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpGPO))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpContainer))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DeleteGPOLink(
  lpGPO: PWideChar;   // LPWSTR
  lpContainer: PWideChar   // LPWSTR
): Integer; stdcall;
  external 'GPEDIT.dll' name 'DeleteGPOLink';

result := DllCall("GPEDIT\DeleteGPOLink"
    , "WStr", lpGPO   ; LPWSTR
    , "WStr", lpContainer   ; LPWSTR
    , "Int")   ; return: HRESULT

●DeleteGPOLink(lpGPO, lpContainer) = DLL("GPEDIT.dll", "int DeleteGPOLink(char*, char*)")
# 呼び出し: DeleteGPOLink(lpGPO, lpContainer)
# lpGPO : LPWSTR -> "char*"
# lpContainer : LPWSTR -> "char*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。