ldap_delete_s

// WLDAP32.dll  (ANSI / -A)
#include <windows.h>

DWORD ldap_delete_s(
    LDAP* ld,
    LPSTR dn
);

<DllImport("WLDAP32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ldap_delete_s(
    ld As IntPtr,   ' LDAP* in/out
    <MarshalAs(UnmanagedType.LPStr)> dn As String   ' LPSTR
) As UInteger
End Function

' ld : LDAP* in/out
' dn : LPSTR
Declare PtrSafe Function ldap_delete_s Lib "wldap32" ( _
    ByVal ld As LongPtr, _
    ByVal dn As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ldap_delete_s = ctypes.cdll.wldap32.ldap_delete_s
ldap_delete_s.restype = wintypes.DWORD
ldap_delete_s.argtypes = [
    ctypes.c_void_p,  # ld : LDAP* in/out
    wintypes.LPCSTR,  # dn : LPSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WLDAP32.dll')
ldap_delete_s = Fiddle::Function.new(
  lib['ldap_delete_s'],
  [
    Fiddle::TYPE_VOIDP,  # ld : LDAP* in/out
    Fiddle::TYPE_VOIDP,  # dn : LPSTR
  ],
  -Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "wldap32")]
extern "C" {
    fn ldap_delete_s(
        ld: *mut LDAP,  // LDAP* in/out
        dn: *mut u8  // LPSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WLDAP32.dll", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
public static extern uint ldap_delete_s(IntPtr ld, [MarshalAs(UnmanagedType.LPStr)] string dn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WLDAP32_ldap_delete_s' -Namespace Win32 -PassThru
# $api::ldap_delete_s(ld, dn)

#uselib "WLDAP32.dll"
#func global ldap_delete_s "ldap_delete_s" sptr, sptr
; ldap_delete_s varptr(ld), dn   ; 戻り値は stat
; ld : LDAP* in/out -> "sptr"
; dn : LPSTR -> "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 "WLDAP32.dll"
#cfunc global ldap_delete_s "ldap_delete_s" var, str
; res = ldap_delete_s(ld, dn)
; ld : LDAP* in/out -> "var"
; dn : LPSTR -> "str"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; DWORD ldap_delete_s(LDAP* ld, LPSTR dn)
#uselib "WLDAP32.dll"
#cfunc global ldap_delete_s "ldap_delete_s" var, str
; res = ldap_delete_s(ld, dn)
; ld : LDAP* in/out -> "var"
; dn : LPSTR -> "str"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	wldap32 = windows.NewLazySystemDLL("WLDAP32.dll")
	procldap_delete_s = wldap32.NewProc("ldap_delete_s")
)

// ld (LDAP* in/out), dn (LPSTR)
r1, _, err := procldap_delete_s.Call(
	uintptr(ld),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(dn))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ldap_delete_s(
  ld: Pointer;   // LDAP* in/out
  dn: PAnsiChar   // LPSTR
): DWORD; cdecl;
  external 'WLDAP32.dll' name 'ldap_delete_s';

result := DllCall("WLDAP32\ldap_delete_s"
    , "Ptr", ld   ; LDAP* in/out
    , "AStr", dn   ; LPSTR
    , "Cdecl UInt")   ; return: DWORD

●ldap_delete_s(ld, dn) = DLL("WLDAP32.dll", "dword ldap_delete_s(void*, char*)")
# 呼び出し: ldap_delete_s(ld, dn)
# ld : LDAP* in/out -> "void*"
# dn : LPSTR -> "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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。