AdjustCalendarDate

// KERNEL32.dll
#include <windows.h>

BOOL AdjustCalendarDate(
    CALDATETIME* lpCalDateTime,
    CALDATETIME_DATEUNIT calUnit,
    INT amount
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function AdjustCalendarDate(
    lpCalDateTime As IntPtr,   ' CALDATETIME* in/out
    calUnit As Integer,   ' CALDATETIME_DATEUNIT
    amount As Integer   ' INT
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpCalDateTime : CALDATETIME* in/out
' calUnit : CALDATETIME_DATEUNIT
' amount : INT
Declare PtrSafe Function AdjustCalendarDate Lib "kernel32" ( _
    ByVal lpCalDateTime As LongPtr, _
    ByVal calUnit As Long, _
    ByVal amount As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

AdjustCalendarDate = ctypes.windll.kernel32.AdjustCalendarDate
AdjustCalendarDate.restype = wintypes.BOOL
AdjustCalendarDate.argtypes = [
    ctypes.c_void_p,  # lpCalDateTime : CALDATETIME* in/out
    ctypes.c_int,  # calUnit : CALDATETIME_DATEUNIT
    ctypes.c_int,  # amount : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
AdjustCalendarDate = Fiddle::Function.new(
  lib['AdjustCalendarDate'],
  [
    Fiddle::TYPE_VOIDP,  # lpCalDateTime : CALDATETIME* in/out
    Fiddle::TYPE_INT,  # calUnit : CALDATETIME_DATEUNIT
    Fiddle::TYPE_INT,  # amount : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn AdjustCalendarDate(
        lpCalDateTime: *mut CALDATETIME,  // CALDATETIME* in/out
        calUnit: i32,  // CALDATETIME_DATEUNIT
        amount: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool AdjustCalendarDate(IntPtr lpCalDateTime, int calUnit, int amount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_AdjustCalendarDate' -Namespace Win32 -PassThru
# $api::AdjustCalendarDate(lpCalDateTime, calUnit, amount)

#uselib "KERNEL32.dll"
#func global AdjustCalendarDate "AdjustCalendarDate" sptr, sptr, sptr
; AdjustCalendarDate varptr(lpCalDateTime), calUnit, amount   ; 戻り値は stat
; lpCalDateTime : CALDATETIME* in/out -> "sptr"
; calUnit : CALDATETIME_DATEUNIT -> "sptr"
; amount : INT -> "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。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procAdjustCalendarDate = kernel32.NewProc("AdjustCalendarDate")
)

// lpCalDateTime (CALDATETIME* in/out), calUnit (CALDATETIME_DATEUNIT), amount (INT)
r1, _, err := procAdjustCalendarDate.Call(
	uintptr(lpCalDateTime),
	uintptr(calUnit),
	uintptr(amount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function AdjustCalendarDate(
  lpCalDateTime: Pointer;   // CALDATETIME* in/out
  calUnit: Integer;   // CALDATETIME_DATEUNIT
  amount: Integer   // INT
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'AdjustCalendarDate';

result := DllCall("KERNEL32\AdjustCalendarDate"
    , "Ptr", lpCalDateTime   ; CALDATETIME* in/out
    , "Int", calUnit   ; CALDATETIME_DATEUNIT
    , "Int", amount   ; INT
    , "Int")   ; return: BOOL

●AdjustCalendarDate(lpCalDateTime, calUnit, amount) = DLL("KERNEL32.dll", "bool AdjustCalendarDate(void*, int, int)")
# 呼び出し: AdjustCalendarDate(lpCalDateTime, calUnit, amount)
# lpCalDateTime : CALDATETIME* in/out -> "void*"
# calUnit : CALDATETIME_DATEUNIT -> "int"
# amount : INT -> "int"
# 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)。

const std = @import("std");

extern "kernel32" fn AdjustCalendarDate(
    lpCalDateTime: [*c]CALDATETIME, // CALDATETIME* in/out
    calUnit: i32, // CALDATETIME_DATEUNIT
    amount: i32 // INT
) callconv(std.os.windows.WINAPI) i32;

proc AdjustCalendarDate(
    lpCalDateTime: ptr CALDATETIME,  # CALDATETIME* in/out
    calUnit: int32,  # CALDATETIME_DATEUNIT
    amount: int32  # INT
): int32 {.importc: "AdjustCalendarDate", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int AdjustCalendarDate(
    CALDATETIME* lpCalDateTime,   // CALDATETIME* in/out
    int calUnit,   // CALDATETIME_DATEUNIT
    int amount   // INT
);

ccall((:AdjustCalendarDate, "KERNEL32.dll"), stdcall, Int32,
      (Ptr{CALDATETIME}, Int32, Int32),
      lpCalDateTime, calUnit, amount)
# lpCalDateTime : CALDATETIME* in/out -> Ptr{CALDATETIME}
# calUnit : CALDATETIME_DATEUNIT -> Int32
# amount : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t AdjustCalendarDate(
    void* lpCalDateTime,
    int32_t calUnit,
    int32_t amount);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.AdjustCalendarDate(lpCalDateTime, calUnit, amount)
-- lpCalDateTime : CALDATETIME* in/out
-- calUnit : CALDATETIME_DATEUNIT
-- amount : INT
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const AdjustCalendarDate = lib.func('__stdcall', 'AdjustCalendarDate', 'int32_t', ['void *', 'int32_t', 'int32_t']);
// AdjustCalendarDate(lpCalDateTime, calUnit, amount)
// lpCalDateTime : CALDATETIME* in/out -> 'void *'
// calUnit : CALDATETIME_DATEUNIT -> 'int32_t'
// amount : INT -> 'int32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("KERNEL32.dll", {
  AdjustCalendarDate: { parameters: ["pointer", "i32", "i32"], result: "i32" },
});
// lib.symbols.AdjustCalendarDate(lpCalDateTime, calUnit, amount)
// lpCalDateTime : CALDATETIME* in/out -> "pointer"
// calUnit : CALDATETIME_DATEUNIT -> "i32"
// amount : INT -> "i32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t AdjustCalendarDate(
    void* lpCalDateTime,
    int32_t calUnit,
    int32_t amount);
C, "KERNEL32.dll");
// $ffi->AdjustCalendarDate(lpCalDateTime, calUnit, amount);
// lpCalDateTime : CALDATETIME* in/out
// calUnit : CALDATETIME_DATEUNIT
// amount : INT
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    boolean AdjustCalendarDate(
        Pointer lpCalDateTime,   // CALDATETIME* in/out
        int calUnit,   // CALDATETIME_DATEUNIT
        int amount   // INT
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun AdjustCalendarDate = AdjustCalendarDate(
    lpCalDateTime : CALDATETIME*,   # CALDATETIME* in/out
    calUnit : Int32,   # CALDATETIME_DATEUNIT
    amount : Int32   # INT
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef AdjustCalendarDateNative = Int32 Function(Pointer<Void>, Int32, Int32);
typedef AdjustCalendarDateDart = int Function(Pointer<Void>, int, int);
final AdjustCalendarDate = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<AdjustCalendarDateNative, AdjustCalendarDateDart>('AdjustCalendarDate');
// lpCalDateTime : CALDATETIME* in/out -> Pointer<Void>
// calUnit : CALDATETIME_DATEUNIT -> Int32
// amount : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function AdjustCalendarDate(
  lpCalDateTime: Pointer;   // CALDATETIME* in/out
  calUnit: Integer;   // CALDATETIME_DATEUNIT
  amount: Integer   // INT
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'AdjustCalendarDate';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "AdjustCalendarDate"
  c_AdjustCalendarDate :: Ptr () -> Int32 -> Int32 -> IO CInt
-- lpCalDateTime : CALDATETIME* in/out -> Ptr ()
-- calUnit : CALDATETIME_DATEUNIT -> Int32
-- amount : INT -> Int32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let adjustcalendardate =
  foreign "AdjustCalendarDate"
    ((ptr void) @-> int32_t @-> int32_t @-> returning int32_t)
(* lpCalDateTime : CALDATETIME* in/out -> (ptr void) *)
(* calUnit : CALDATETIME_DATEUNIT -> int32_t *)
(* amount : INT -> int32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("AdjustCalendarDate" adjust-calendar-date :convention :stdcall) :int32
  (lp-cal-date-time :pointer)   ; CALDATETIME* in/out
  (cal-unit :int32)   ; CALDATETIME_DATEUNIT
  (amount :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $AdjustCalendarDate = Win32::API::More->new('KERNEL32',
    'BOOL AdjustCalendarDate(LPVOID lpCalDateTime, int calUnit, int amount)');
# my $ret = $AdjustCalendarDate->Call($lpCalDateTime, $calUnit, $amount);
# lpCalDateTime : CALDATETIME* in/out -> LPVOID
# calUnit : CALDATETIME_DATEUNIT -> int
# amount : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。