DhcpHlprCreateV4Policy

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

DWORD DhcpHlprCreateV4Policy(
    LPWSTR PolicyName,
    BOOL fGlobalPolicy,
    DWORD Subnet,
    DWORD ProcessingOrder,
    DHCP_POL_LOGIC_OPER RootOperator,
    LPWSTR Description,
    BOOL Enabled,
    DHCP_POLICY** Policy
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpHlprCreateV4Policy(
    <MarshalAs(UnmanagedType.LPWStr)> PolicyName As String,   ' LPWSTR
    fGlobalPolicy As Boolean,   ' BOOL
    Subnet As UInteger,   ' DWORD
    ProcessingOrder As UInteger,   ' DWORD
    RootOperator As Integer,   ' DHCP_POL_LOGIC_OPER
    <MarshalAs(UnmanagedType.LPWStr)> Description As String,   ' LPWSTR
    Enabled As Boolean,   ' BOOL
    Policy As IntPtr   ' DHCP_POLICY** out
) As UInteger
End Function

' PolicyName : LPWSTR
' fGlobalPolicy : BOOL
' Subnet : DWORD
' ProcessingOrder : DWORD
' RootOperator : DHCP_POL_LOGIC_OPER
' Description : LPWSTR
' Enabled : BOOL
' Policy : DHCP_POLICY** out
Declare PtrSafe Function DhcpHlprCreateV4Policy Lib "dhcpsapi" ( _
    ByVal PolicyName As LongPtr, _
    ByVal fGlobalPolicy As Long, _
    ByVal Subnet As Long, _
    ByVal ProcessingOrder As Long, _
    ByVal RootOperator As Long, _
    ByVal Description As LongPtr, _
    ByVal Enabled As Long, _
    ByVal Policy 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

DhcpHlprCreateV4Policy = ctypes.windll.dhcpsapi.DhcpHlprCreateV4Policy
DhcpHlprCreateV4Policy.restype = wintypes.DWORD
DhcpHlprCreateV4Policy.argtypes = [
    wintypes.LPCWSTR,  # PolicyName : LPWSTR
    wintypes.BOOL,  # fGlobalPolicy : BOOL
    wintypes.DWORD,  # Subnet : DWORD
    wintypes.DWORD,  # ProcessingOrder : DWORD
    ctypes.c_int,  # RootOperator : DHCP_POL_LOGIC_OPER
    wintypes.LPCWSTR,  # Description : LPWSTR
    wintypes.BOOL,  # Enabled : BOOL
    ctypes.c_void_p,  # Policy : DHCP_POLICY** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpHlprCreateV4Policy = Fiddle::Function.new(
  lib['DhcpHlprCreateV4Policy'],
  [
    Fiddle::TYPE_VOIDP,  # PolicyName : LPWSTR
    Fiddle::TYPE_INT,  # fGlobalPolicy : BOOL
    -Fiddle::TYPE_INT,  # Subnet : DWORD
    -Fiddle::TYPE_INT,  # ProcessingOrder : DWORD
    Fiddle::TYPE_INT,  # RootOperator : DHCP_POL_LOGIC_OPER
    Fiddle::TYPE_VOIDP,  # Description : LPWSTR
    Fiddle::TYPE_INT,  # Enabled : BOOL
    Fiddle::TYPE_VOIDP,  # Policy : DHCP_POLICY** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpHlprCreateV4Policy(
        PolicyName: *mut u16,  // LPWSTR
        fGlobalPolicy: i32,  // BOOL
        Subnet: u32,  // DWORD
        ProcessingOrder: u32,  // DWORD
        RootOperator: i32,  // DHCP_POL_LOGIC_OPER
        Description: *mut u16,  // LPWSTR
        Enabled: i32,  // BOOL
        Policy: *mut *mut DHCP_POLICY  // DHCP_POLICY** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpHlprCreateV4Policy([MarshalAs(UnmanagedType.LPWStr)] string PolicyName, bool fGlobalPolicy, uint Subnet, uint ProcessingOrder, int RootOperator, [MarshalAs(UnmanagedType.LPWStr)] string Description, bool Enabled, IntPtr Policy);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpHlprCreateV4Policy' -Namespace Win32 -PassThru
# $api::DhcpHlprCreateV4Policy(PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, Policy)

#uselib "DHCPSAPI.dll"
#func global DhcpHlprCreateV4Policy "DhcpHlprCreateV4Policy" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DhcpHlprCreateV4Policy PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, varptr(Policy)   ; 戻り値は stat
; PolicyName : LPWSTR -> "sptr"
; fGlobalPolicy : BOOL -> "sptr"
; Subnet : DWORD -> "sptr"
; ProcessingOrder : DWORD -> "sptr"
; RootOperator : DHCP_POL_LOGIC_OPER -> "sptr"
; Description : LPWSTR -> "sptr"
; Enabled : BOOL -> "sptr"
; Policy : DHCP_POLICY** out -> "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 "DHCPSAPI.dll"
#cfunc global DhcpHlprCreateV4Policy "DhcpHlprCreateV4Policy" wstr, int, int, int, int, wstr, int, var
; res = DhcpHlprCreateV4Policy(PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, Policy)
; PolicyName : LPWSTR -> "wstr"
; fGlobalPolicy : BOOL -> "int"
; Subnet : DWORD -> "int"
; ProcessingOrder : DWORD -> "int"
; RootOperator : DHCP_POL_LOGIC_OPER -> "int"
; Description : LPWSTR -> "wstr"
; Enabled : BOOL -> "int"
; Policy : DHCP_POLICY** out -> "var"
; ※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 DhcpHlprCreateV4Policy(LPWSTR PolicyName, BOOL fGlobalPolicy, DWORD Subnet, DWORD ProcessingOrder, DHCP_POL_LOGIC_OPER RootOperator, LPWSTR Description, BOOL Enabled, DHCP_POLICY** Policy)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpHlprCreateV4Policy "DhcpHlprCreateV4Policy" wstr, int, int, int, int, wstr, int, var
; res = DhcpHlprCreateV4Policy(PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, Policy)
; PolicyName : LPWSTR -> "wstr"
; fGlobalPolicy : BOOL -> "int"
; Subnet : DWORD -> "int"
; ProcessingOrder : DWORD -> "int"
; RootOperator : DHCP_POL_LOGIC_OPER -> "int"
; Description : LPWSTR -> "wstr"
; Enabled : BOOL -> "int"
; Policy : DHCP_POLICY** out -> "var"
; ※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 (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpHlprCreateV4Policy = dhcpsapi.NewProc("DhcpHlprCreateV4Policy")
)

// PolicyName (LPWSTR), fGlobalPolicy (BOOL), Subnet (DWORD), ProcessingOrder (DWORD), RootOperator (DHCP_POL_LOGIC_OPER), Description (LPWSTR), Enabled (BOOL), Policy (DHCP_POLICY** out)
r1, _, err := procDhcpHlprCreateV4Policy.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(PolicyName))),
	uintptr(fGlobalPolicy),
	uintptr(Subnet),
	uintptr(ProcessingOrder),
	uintptr(RootOperator),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Description))),
	uintptr(Enabled),
	uintptr(Policy),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpHlprCreateV4Policy(
  PolicyName: PWideChar;   // LPWSTR
  fGlobalPolicy: BOOL;   // BOOL
  Subnet: DWORD;   // DWORD
  ProcessingOrder: DWORD;   // DWORD
  RootOperator: Integer;   // DHCP_POL_LOGIC_OPER
  Description: PWideChar;   // LPWSTR
  Enabled: BOOL;   // BOOL
  Policy: Pointer   // DHCP_POLICY** out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpHlprCreateV4Policy';

result := DllCall("DHCPSAPI\DhcpHlprCreateV4Policy"
    , "WStr", PolicyName   ; LPWSTR
    , "Int", fGlobalPolicy   ; BOOL
    , "UInt", Subnet   ; DWORD
    , "UInt", ProcessingOrder   ; DWORD
    , "Int", RootOperator   ; DHCP_POL_LOGIC_OPER
    , "WStr", Description   ; LPWSTR
    , "Int", Enabled   ; BOOL
    , "Ptr", Policy   ; DHCP_POLICY** out
    , "UInt")   ; return: DWORD

●DhcpHlprCreateV4Policy(PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, Policy) = DLL("DHCPSAPI.dll", "dword DhcpHlprCreateV4Policy(char*, bool, dword, dword, int, char*, bool, void*)")
# 呼び出し: DhcpHlprCreateV4Policy(PolicyName, fGlobalPolicy, Subnet, ProcessingOrder, RootOperator, Description, Enabled, Policy)
# PolicyName : LPWSTR -> "char*"
# fGlobalPolicy : BOOL -> "bool"
# Subnet : DWORD -> "dword"
# ProcessingOrder : DWORD -> "dword"
# RootOperator : DHCP_POL_LOGIC_OPER -> "int"
# Description : LPWSTR -> "char*"
# Enabled : BOOL -> "bool"
# Policy : DHCP_POLICY** out -> "void*"
# 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)。