GetCalendarDateFormatEx

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

BOOL GetCalendarDateFormatEx(
    LPCWSTR lpszLocale,
    DWORD dwFlags,
    const CALDATETIME* lpCalDateTime,
    LPCWSTR lpFormat,
    LPWSTR lpDateStr,
    INT cchDate
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetCalendarDateFormatEx(
    <MarshalAs(UnmanagedType.LPWStr)> lpszLocale As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    lpCalDateTime As IntPtr,   ' CALDATETIME*
    <MarshalAs(UnmanagedType.LPWStr)> lpFormat As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpDateStr As System.Text.StringBuilder,   ' LPWSTR out
    cchDate As Integer   ' INT
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpszLocale : LPCWSTR
' dwFlags : DWORD
' lpCalDateTime : CALDATETIME*
' lpFormat : LPCWSTR
' lpDateStr : LPWSTR out
' cchDate : INT
Declare PtrSafe Function GetCalendarDateFormatEx Lib "kernel32" ( _
    ByVal lpszLocale As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal lpCalDateTime As LongPtr, _
    ByVal lpFormat As LongPtr, _
    ByVal lpDateStr As LongPtr, _
    ByVal cchDate 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

GetCalendarDateFormatEx = ctypes.windll.kernel32.GetCalendarDateFormatEx
GetCalendarDateFormatEx.restype = wintypes.BOOL
GetCalendarDateFormatEx.argtypes = [
    wintypes.LPCWSTR,  # lpszLocale : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # lpCalDateTime : CALDATETIME*
    wintypes.LPCWSTR,  # lpFormat : LPCWSTR
    wintypes.LPWSTR,  # lpDateStr : LPWSTR out
    ctypes.c_int,  # cchDate : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetCalendarDateFormatEx = Fiddle::Function.new(
  lib['GetCalendarDateFormatEx'],
  [
    Fiddle::TYPE_VOIDP,  # lpszLocale : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lpCalDateTime : CALDATETIME*
    Fiddle::TYPE_VOIDP,  # lpFormat : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpDateStr : LPWSTR out
    Fiddle::TYPE_INT,  # cchDate : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetCalendarDateFormatEx(
        lpszLocale: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        lpCalDateTime: *const CALDATETIME,  // CALDATETIME*
        lpFormat: *const u16,  // LPCWSTR
        lpDateStr: *mut u16,  // LPWSTR out
        cchDate: 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 GetCalendarDateFormatEx([MarshalAs(UnmanagedType.LPWStr)] string lpszLocale, uint dwFlags, IntPtr lpCalDateTime, [MarshalAs(UnmanagedType.LPWStr)] string lpFormat, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpDateStr, int cchDate);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetCalendarDateFormatEx' -Namespace Win32 -PassThru
# $api::GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)

#uselib "KERNEL32.dll"
#func global GetCalendarDateFormatEx "GetCalendarDateFormatEx" sptr, sptr, sptr, sptr, sptr, sptr
; GetCalendarDateFormatEx lpszLocale, dwFlags, varptr(lpCalDateTime), lpFormat, varptr(lpDateStr), cchDate   ; 戻り値は stat
; lpszLocale : LPCWSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; lpCalDateTime : CALDATETIME* -> "sptr"
; lpFormat : LPCWSTR -> "sptr"
; lpDateStr : LPWSTR out -> "sptr"
; cchDate : 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")
	procGetCalendarDateFormatEx = kernel32.NewProc("GetCalendarDateFormatEx")
)

// lpszLocale (LPCWSTR), dwFlags (DWORD), lpCalDateTime (CALDATETIME*), lpFormat (LPCWSTR), lpDateStr (LPWSTR out), cchDate (INT)
r1, _, err := procGetCalendarDateFormatEx.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszLocale))),
	uintptr(dwFlags),
	uintptr(lpCalDateTime),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFormat))),
	uintptr(lpDateStr),
	uintptr(cchDate),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetCalendarDateFormatEx(
  lpszLocale: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  lpCalDateTime: Pointer;   // CALDATETIME*
  lpFormat: PWideChar;   // LPCWSTR
  lpDateStr: PWideChar;   // LPWSTR out
  cchDate: Integer   // INT
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetCalendarDateFormatEx';

result := DllCall("KERNEL32\GetCalendarDateFormatEx"
    , "WStr", lpszLocale   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", lpCalDateTime   ; CALDATETIME*
    , "WStr", lpFormat   ; LPCWSTR
    , "Ptr", lpDateStr   ; LPWSTR out
    , "Int", cchDate   ; INT
    , "Int")   ; return: BOOL

●GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate) = DLL("KERNEL32.dll", "bool GetCalendarDateFormatEx(char*, dword, void*, char*, char*, int)")
# 呼び出し: GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)
# lpszLocale : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# lpCalDateTime : CALDATETIME* -> "void*"
# lpFormat : LPCWSTR -> "char*"
# lpDateStr : LPWSTR out -> "char*"
# cchDate : 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 GetCalendarDateFormatEx(
    lpszLocale: [*c]const u16, // LPCWSTR
    dwFlags: u32, // DWORD
    lpCalDateTime: [*c]CALDATETIME, // CALDATETIME*
    lpFormat: [*c]const u16, // LPCWSTR
    lpDateStr: [*c]u16, // LPWSTR out
    cchDate: i32 // INT
) callconv(std.os.windows.WINAPI) i32;

proc GetCalendarDateFormatEx(
    lpszLocale: WideCString,  # LPCWSTR
    dwFlags: uint32,  # DWORD
    lpCalDateTime: ptr CALDATETIME,  # CALDATETIME*
    lpFormat: WideCString,  # LPCWSTR
    lpDateStr: ptr uint16,  # LPWSTR out
    cchDate: int32  # INT
): int32 {.importc: "GetCalendarDateFormatEx", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int GetCalendarDateFormatEx(
    const(wchar)* lpszLocale,   // LPCWSTR
    uint dwFlags,   // DWORD
    CALDATETIME* lpCalDateTime,   // CALDATETIME*
    const(wchar)* lpFormat,   // LPCWSTR
    wchar* lpDateStr,   // LPWSTR out
    int cchDate   // INT
);

ccall((:GetCalendarDateFormatEx, "KERNEL32.dll"), stdcall, Int32,
      (Cwstring, UInt32, Ptr{CALDATETIME}, Cwstring, Ptr{UInt16}, Int32),
      lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)
# lpszLocale : LPCWSTR -> Cwstring
# dwFlags : DWORD -> UInt32
# lpCalDateTime : CALDATETIME* -> Ptr{CALDATETIME}
# lpFormat : LPCWSTR -> Cwstring
# lpDateStr : LPWSTR out -> Ptr{UInt16}
# cchDate : 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 GetCalendarDateFormatEx(
    const uint16_t* lpszLocale,
    uint32_t dwFlags,
    void* lpCalDateTime,
    const uint16_t* lpFormat,
    uint16_t* lpDateStr,
    int32_t cchDate);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)
-- lpszLocale : LPCWSTR
-- dwFlags : DWORD
-- lpCalDateTime : CALDATETIME*
-- lpFormat : LPCWSTR
-- lpDateStr : LPWSTR out
-- cchDate : 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 GetCalendarDateFormatEx = lib.func('__stdcall', 'GetCalendarDateFormatEx', 'int32_t', ['str16', 'uint32_t', 'void *', 'str16', 'uint16_t *', 'int32_t']);
// GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)
// lpszLocale : LPCWSTR -> 'str16'
// dwFlags : DWORD -> 'uint32_t'
// lpCalDateTime : CALDATETIME* -> 'void *'
// lpFormat : LPCWSTR -> 'str16'
// lpDateStr : LPWSTR out -> 'uint16_t *'
// cchDate : 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", {
  GetCalendarDateFormatEx: { parameters: ["buffer", "u32", "pointer", "buffer", "buffer", "i32"], result: "i32" },
});
// lib.symbols.GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate)
// lpszLocale : LPCWSTR -> "buffer"
// dwFlags : DWORD -> "u32"
// lpCalDateTime : CALDATETIME* -> "pointer"
// lpFormat : LPCWSTR -> "buffer"
// lpDateStr : LPWSTR out -> "buffer"
// cchDate : 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 GetCalendarDateFormatEx(
    const uint16_t* lpszLocale,
    uint32_t dwFlags,
    void* lpCalDateTime,
    const uint16_t* lpFormat,
    uint16_t* lpDateStr,
    int32_t cchDate);
C, "KERNEL32.dll");
// $ffi->GetCalendarDateFormatEx(lpszLocale, dwFlags, lpCalDateTime, lpFormat, lpDateStr, cchDate);
// lpszLocale : LPCWSTR
// dwFlags : DWORD
// lpCalDateTime : CALDATETIME*
// lpFormat : LPCWSTR
// lpDateStr : LPWSTR out
// cchDate : 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 GetCalendarDateFormatEx(
        WString lpszLocale,   // LPCWSTR
        int dwFlags,   // DWORD
        Pointer lpCalDateTime,   // CALDATETIME*
        WString lpFormat,   // LPCWSTR
        char[] lpDateStr,   // LPWSTR out
        int cchDate   // INT
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun GetCalendarDateFormatEx = GetCalendarDateFormatEx(
    lpszLocale : UInt16*,   # LPCWSTR
    dwFlags : UInt32,   # DWORD
    lpCalDateTime : CALDATETIME*,   # CALDATETIME*
    lpFormat : UInt16*,   # LPCWSTR
    lpDateStr : UInt16*,   # LPWSTR out
    cchDate : 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 GetCalendarDateFormatExNative = Int32 Function(Pointer<Utf16>, Uint32, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Int32);
typedef GetCalendarDateFormatExDart = int Function(Pointer<Utf16>, int, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, int);
final GetCalendarDateFormatEx = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<GetCalendarDateFormatExNative, GetCalendarDateFormatExDart>('GetCalendarDateFormatEx');
// lpszLocale : LPCWSTR -> Pointer<Utf16>
// dwFlags : DWORD -> Uint32
// lpCalDateTime : CALDATETIME* -> Pointer<Void>
// lpFormat : LPCWSTR -> Pointer<Utf16>
// lpDateStr : LPWSTR out -> Pointer<Utf16>
// cchDate : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetCalendarDateFormatEx(
  lpszLocale: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  lpCalDateTime: Pointer;   // CALDATETIME*
  lpFormat: PWideChar;   // LPCWSTR
  lpDateStr: PWideChar;   // LPWSTR out
  cchDate: Integer   // INT
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetCalendarDateFormatEx';

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

foreign import stdcall safe "GetCalendarDateFormatEx"
  c_GetCalendarDateFormatEx :: CWString -> Word32 -> Ptr () -> CWString -> CWString -> Int32 -> IO CInt
-- lpszLocale : LPCWSTR -> CWString
-- dwFlags : DWORD -> Word32
-- lpCalDateTime : CALDATETIME* -> Ptr ()
-- lpFormat : LPCWSTR -> CWString
-- lpDateStr : LPWSTR out -> CWString
-- cchDate : 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 getcalendardateformatex =
  foreign "GetCalendarDateFormatEx"
    ((ptr uint16_t) @-> uint32_t @-> (ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> int32_t @-> returning int32_t)
(* lpszLocale : LPCWSTR -> (ptr uint16_t) *)
(* dwFlags : DWORD -> uint32_t *)
(* lpCalDateTime : CALDATETIME* -> (ptr void) *)
(* lpFormat : LPCWSTR -> (ptr uint16_t) *)
(* lpDateStr : LPWSTR out -> (ptr uint16_t) *)
(* cchDate : 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 ("GetCalendarDateFormatEx" get-calendar-date-format-ex :convention :stdcall) :int32
  (lpsz-locale (:string :encoding :utf-16le))   ; LPCWSTR
  (dw-flags :uint32)   ; DWORD
  (lp-cal-date-time :pointer)   ; CALDATETIME*
  (lp-format (:string :encoding :utf-16le))   ; LPCWSTR
  (lp-date-str :pointer)   ; LPWSTR out
  (cch-date :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetCalendarDateFormatEx = Win32::API::More->new('KERNEL32',
    'BOOL GetCalendarDateFormatEx(LPCWSTR lpszLocale, DWORD dwFlags, LPVOID lpCalDateTime, LPCWSTR lpFormat, LPWSTR lpDateStr, int cchDate)');
# my $ret = $GetCalendarDateFormatEx->Call($lpszLocale, $dwFlags, $lpCalDateTime, $lpFormat, $lpDateStr, $cchDate);
# lpszLocale : LPCWSTR -> LPCWSTR
# dwFlags : DWORD -> DWORD
# lpCalDateTime : CALDATETIME* -> LPVOID
# lpFormat : LPCWSTR -> LPCWSTR
# lpDateStr : LPWSTR out -> LPWSTR
# cchDate : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。