ucal_setGregorianChange

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

void ucal_setGregorianChange(
    void** cal,
    DOUBLE date,
    UErrorCode* pErrorCode
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ucal_setGregorianChange(
    cal As IntPtr,   ' void** in/out
    [date] As Double,   ' DOUBLE
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
)
End Sub

' cal : void** in/out
' date : DOUBLE
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Sub ucal_setGregorianChange Lib "icuin" ( _
    ByVal cal As LongPtr, _
    ByVal date As Double, _
    ByRef pErrorCode As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucal_setGregorianChange = ctypes.cdll.icuin.ucal_setGregorianChange
ucal_setGregorianChange.restype = None
ucal_setGregorianChange.argtypes = [
    ctypes.c_void_p,  # cal : void** in/out
    ctypes.c_double,  # date : DOUBLE
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucal_setGregorianChange = Fiddle::Function.new(
  lib['ucal_setGregorianChange'],
  [
    Fiddle::TYPE_VOIDP,  # cal : void** in/out
    Fiddle::TYPE_DOUBLE,  # date : DOUBLE
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucal_setGregorianChange(
        cal: *mut *mut (),  // void** in/out
        date: f64,  // DOUBLE
        pErrorCode: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void ucal_setGregorianChange(IntPtr cal, double date, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucal_setGregorianChange' -Namespace Win32 -PassThru
# $api::ucal_setGregorianChange(cal, date, pErrorCode)

#uselib "icuin.dll"
#func global ucal_setGregorianChange "ucal_setGregorianChange" sptr, double, sptr
; ucal_setGregorianChange cal, date, varptr(pErrorCode)
; cal : void** in/out -> "sptr"
; date : DOUBLE -> "double"
; pErrorCode : UErrorCode* in/out -> "sptr"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucal_setGregorianChange = icuin.NewProc("ucal_setGregorianChange")
)

// cal (void** in/out), date (DOUBLE), pErrorCode (UErrorCode* in/out)
r1, _, err := procucal_setGregorianChange.Call(
	uintptr(cal),
	uintptr(math.Float64bits(date)),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。

procedure ucal_setGregorianChange(
  cal: Pointer;   // void** in/out
  date: Double;   // DOUBLE
  pErrorCode: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'ucal_setGregorianChange';

result := DllCall("icuin\ucal_setGregorianChange"
    , "Ptr", cal   ; void** in/out
    , "Double", date   ; DOUBLE
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ucal_setGregorianChange(cal, date, pErrorCode) = DLL("icuin.dll", "int ucal_setGregorianChange(void*, double, void*)")
# 呼び出し: ucal_setGregorianChange(cal, date, pErrorCode)
# cal : void** in/out -> "void*"
# date : DOUBLE -> "double"
# pErrorCode : UErrorCode* in/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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "icuin" fn ucal_setGregorianChange(
    cal: ?*anyopaque, // void** in/out
    date: f64, // DOUBLE
    pErrorCode: [*c]i32 // UErrorCode* in/out
) callconv(.c) void;

proc ucal_setGregorianChange(
    cal: pointer,  # void** in/out
    date: float64,  # DOUBLE
    pErrorCode: ptr int32  # UErrorCode* in/out
) {.importc: "ucal_setGregorianChange", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
void ucal_setGregorianChange(
    void** cal,   // void** in/out
    double date,   // DOUBLE
    int* pErrorCode   // UErrorCode* in/out
);

ccall((:ucal_setGregorianChange, "icuin.dll"), Cvoid,
      (Ptr{Cvoid}, Float64, Ptr{Int32}),
      cal, date, pErrorCode)
# cal : void** in/out -> Ptr{Cvoid}
# date : DOUBLE -> Float64
# pErrorCode : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void ucal_setGregorianChange(
    void** cal,
    double date,
    int32_t* pErrorCode);
]]
local icuin = ffi.load("icuin")
-- icuin.ucal_setGregorianChange(cal, date, pErrorCode)
-- cal : void** in/out
-- date : DOUBLE
-- pErrorCode : UErrorCode* in/out
-- 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('icuin.dll');
const ucal_setGregorianChange = lib.func('__cdecl', 'ucal_setGregorianChange', 'void', ['void *', 'double', 'int32_t *']);
// ucal_setGregorianChange(cal, date, pErrorCode)
// cal : void** in/out -> 'void *'
// date : DOUBLE -> 'double'
// pErrorCode : UErrorCode* in/out -> '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("icuin.dll", {
  ucal_setGregorianChange: { parameters: ["pointer", "f64", "pointer"], result: "void" },
});
// lib.symbols.ucal_setGregorianChange(cal, date, pErrorCode)
// cal : void** in/out -> "pointer"
// date : DOUBLE -> "f64"
// pErrorCode : UErrorCode* in/out -> "pointer"
// 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
void ucal_setGregorianChange(
    void** cal,
    double date,
    int32_t* pErrorCode);
C, "icuin.dll");
// $ffi->ucal_setGregorianChange(cal, date, pErrorCode);
// cal : void** in/out
// date : DOUBLE
// pErrorCode : UErrorCode* in/out
// 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。

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

public interface Icuin extends Library {
    Icuin INSTANCE = Native.load("icuin", Icuin.class);
    void ucal_setGregorianChange(
        Pointer cal,   // void** in/out
        double date,   // DOUBLE
        IntByReference pErrorCode   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucal_setGregorianChange = ucal_setGregorianChange(
    cal : Void**,   # void** in/out
    date : Float64,   # DOUBLE
    pErrorCode : Int32*   # UErrorCode* in/out
  ) : Void
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

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

typedef ucal_setGregorianChangeNative = Void Function(Pointer<Void>, Double, Pointer<Int32>);
typedef ucal_setGregorianChangeDart = void Function(Pointer<Void>, double, Pointer<Int32>);
final ucal_setGregorianChange = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucal_setGregorianChangeNative, ucal_setGregorianChangeDart>('ucal_setGregorianChange');
// cal : void** in/out -> Pointer<Void>
// date : DOUBLE -> Double
// pErrorCode : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure ucal_setGregorianChange(
  cal: Pointer;   // void** in/out
  date: Double;   // DOUBLE
  pErrorCode: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'ucal_setGregorianChange';

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

foreign import ccall safe "ucal_setGregorianChange"
  c_ucal_setGregorianChange :: Ptr () -> CDouble -> Ptr Int32 -> IO ()
-- cal : void** in/out -> Ptr ()
-- date : DOUBLE -> CDouble
-- pErrorCode : UErrorCode* in/out -> Ptr 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 ucal_setgregorianchange =
  foreign "ucal_setGregorianChange"
    ((ptr void) @-> double @-> (ptr int32_t) @-> returning void)
(* cal : void** in/out -> (ptr void) *)
(* date : DOUBLE -> double *)
(* pErrorCode : UErrorCode* in/out -> (ptr 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 icuin (t "icuin.dll"))
(cffi:use-foreign-library icuin)

(cffi:defcfun ("ucal_setGregorianChange" ucal-set-gregorian-change :convention :cdecl) :void
  (cal :pointer)   ; void** in/out
  (date :double)   ; DOUBLE
  (p-error-code :pointer))   ; UErrorCode* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ucal_setGregorianChange = Win32::API::More->new('icuin',
    'void ucal_setGregorianChange(LPVOID cal, double date, LPVOID pErrorCode)');
# my $ret = $ucal_setGregorianChange->Call($cal, $date, $pErrorCode);
# cal : void** in/out -> LPVOID
# date : DOUBLE -> double
# pErrorCode : UErrorCode* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。