udtitvfmt_formatToResult

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

void udtitvfmt_formatToResult(
    const UDateIntervalFormat* formatter,
    DOUBLE fromDate,
    DOUBLE toDate,
    UFormattedDateInterval* result,
    UErrorCode* status
);

<DllImport("icu.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub udtitvfmt_formatToResult(
    ByRef formatter As IntPtr,   ' UDateIntervalFormat*
    fromDate As Double,   ' DOUBLE
    toDate As Double,   ' DOUBLE
    ByRef result As IntPtr,   ' UFormattedDateInterval* in/out
    ByRef status As Integer   ' UErrorCode* in/out
)
End Sub

' formatter : UDateIntervalFormat*
' fromDate : DOUBLE
' toDate : DOUBLE
' result : UFormattedDateInterval* in/out
' status : UErrorCode* in/out
Declare PtrSafe Sub udtitvfmt_formatToResult Lib "icu" ( _
    ByRef formatter As LongPtr, _
    ByVal fromDate As Double, _
    ByVal toDate As Double, _
    ByRef result As LongPtr, _
    ByRef status As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

udtitvfmt_formatToResult = ctypes.cdll.icu.udtitvfmt_formatToResult
udtitvfmt_formatToResult.restype = None
udtitvfmt_formatToResult.argtypes = [
    ctypes.c_void_p,  # formatter : UDateIntervalFormat*
    ctypes.c_double,  # fromDate : DOUBLE
    ctypes.c_double,  # toDate : DOUBLE
    ctypes.c_void_p,  # result : UFormattedDateInterval* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icu.dll')
udtitvfmt_formatToResult = Fiddle::Function.new(
  lib['udtitvfmt_formatToResult'],
  [
    Fiddle::TYPE_VOIDP,  # formatter : UDateIntervalFormat*
    Fiddle::TYPE_DOUBLE,  # fromDate : DOUBLE
    Fiddle::TYPE_DOUBLE,  # toDate : DOUBLE
    Fiddle::TYPE_VOIDP,  # result : UFormattedDateInterval* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icu")]
extern "C" {
    fn udtitvfmt_formatToResult(
        formatter: *const isize,  // UDateIntervalFormat*
        fromDate: f64,  // DOUBLE
        toDate: f64,  // DOUBLE
        result: *mut isize,  // UFormattedDateInterval* in/out
        status: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icu.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void udtitvfmt_formatToResult(ref IntPtr formatter, double fromDate, double toDate, ref IntPtr result, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icu_udtitvfmt_formatToResult' -Namespace Win32 -PassThru
# $api::udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status)

#uselib "icu.dll"
#func global udtitvfmt_formatToResult "udtitvfmt_formatToResult" sptr, double, double, sptr, sptr
; udtitvfmt_formatToResult varptr(formatter), fromDate, toDate, varptr(result), varptr(status)
; formatter : UDateIntervalFormat* -> "sptr"
; fromDate : DOUBLE -> "double"
; toDate : DOUBLE -> "double"
; result : UFormattedDateInterval* in/out -> "sptr"
; status : UErrorCode* in/out -> "sptr"

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

var (
	icu = windows.NewLazySystemDLL("icu.dll")
	procudtitvfmt_formatToResult = icu.NewProc("udtitvfmt_formatToResult")
)

// formatter (UDateIntervalFormat*), fromDate (DOUBLE), toDate (DOUBLE), result (UFormattedDateInterval* in/out), status (UErrorCode* in/out)
r1, _, err := procudtitvfmt_formatToResult.Call(
	uintptr(formatter),
	uintptr(math.Float64bits(fromDate)),
	uintptr(math.Float64bits(toDate)),
	uintptr(result),
	uintptr(status),
)
_ = 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 udtitvfmt_formatToResult(
  formatter: Pointer;   // UDateIntervalFormat*
  fromDate: Double;   // DOUBLE
  toDate: Double;   // DOUBLE
  result: Pointer;   // UFormattedDateInterval* in/out
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icu.dll' name 'udtitvfmt_formatToResult';

result := DllCall("icu\udtitvfmt_formatToResult"
    , "Ptr", formatter   ; UDateIntervalFormat*
    , "Double", fromDate   ; DOUBLE
    , "Double", toDate   ; DOUBLE
    , "Ptr", result   ; UFormattedDateInterval* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status) = DLL("icu.dll", "int udtitvfmt_formatToResult(void*, double, double, void*, void*)")
# 呼び出し: udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status)
# formatter : UDateIntervalFormat* -> "void*"
# fromDate : DOUBLE -> "double"
# toDate : DOUBLE -> "double"
# result : UFormattedDateInterval* in/out -> "void*"
# status : 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 "icu" fn udtitvfmt_formatToResult(
    formatter: [*c]isize, // UDateIntervalFormat*
    fromDate: f64, // DOUBLE
    toDate: f64, // DOUBLE
    result: [*c]isize, // UFormattedDateInterval* in/out
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) void;

proc udtitvfmt_formatToResult(
    formatter: ptr int,  # UDateIntervalFormat*
    fromDate: float64,  # DOUBLE
    toDate: float64,  # DOUBLE
    result: ptr int,  # UFormattedDateInterval* in/out
    status: ptr int32  # UErrorCode* in/out
) {.importc: "udtitvfmt_formatToResult", cdecl, dynlib: "icu.dll".}

pragma(lib, "icu");
extern(C)
void udtitvfmt_formatToResult(
    ptrdiff_t* formatter,   // UDateIntervalFormat*
    double fromDate,   // DOUBLE
    double toDate,   // DOUBLE
    ptrdiff_t* result,   // UFormattedDateInterval* in/out
    int* status   // UErrorCode* in/out
);

ccall((:udtitvfmt_formatToResult, "icu.dll"), Cvoid,
      (Ptr{Int}, Float64, Float64, Ptr{Int}, Ptr{Int32}),
      formatter, fromDate, toDate, result, status)
# formatter : UDateIntervalFormat* -> Ptr{Int}
# fromDate : DOUBLE -> Float64
# toDate : DOUBLE -> Float64
# result : UFormattedDateInterval* in/out -> Ptr{Int}
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void udtitvfmt_formatToResult(
    intptr_t* formatter,
    double fromDate,
    double toDate,
    intptr_t* result,
    int32_t* status);
]]
local icu = ffi.load("icu")
-- icu.udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status)
-- formatter : UDateIntervalFormat*
-- fromDate : DOUBLE
-- toDate : DOUBLE
-- result : UFormattedDateInterval* in/out
-- status : 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('icu.dll');
const udtitvfmt_formatToResult = lib.func('__cdecl', 'udtitvfmt_formatToResult', 'void', ['intptr_t *', 'double', 'double', 'intptr_t *', 'int32_t *']);
// udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status)
// formatter : UDateIntervalFormat* -> 'intptr_t *'
// fromDate : DOUBLE -> 'double'
// toDate : DOUBLE -> 'double'
// result : UFormattedDateInterval* in/out -> 'intptr_t *'
// status : 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("icu.dll", {
  udtitvfmt_formatToResult: { parameters: ["pointer", "f64", "f64", "pointer", "pointer"], result: "void" },
});
// lib.symbols.udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status)
// formatter : UDateIntervalFormat* -> "pointer"
// fromDate : DOUBLE -> "f64"
// toDate : DOUBLE -> "f64"
// result : UFormattedDateInterval* in/out -> "pointer"
// status : 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 udtitvfmt_formatToResult(
    intptr_t* formatter,
    double fromDate,
    double toDate,
    intptr_t* result,
    int32_t* status);
C, "icu.dll");
// $ffi->udtitvfmt_formatToResult(formatter, fromDate, toDate, result, status);
// formatter : UDateIntervalFormat*
// fromDate : DOUBLE
// toDate : DOUBLE
// result : UFormattedDateInterval* in/out
// status : 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 Icu extends Library {
    Icu INSTANCE = Native.load("icu", Icu.class);
    void udtitvfmt_formatToResult(
        LongByReference formatter,   // UDateIntervalFormat*
        double fromDate,   // DOUBLE
        double toDate,   // DOUBLE
        LongByReference result,   // UFormattedDateInterval* in/out
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icu")]
lib Libicu
  fun udtitvfmt_formatToResult = udtitvfmt_formatToResult(
    formatter : LibC::SSizeT*,   # UDateIntervalFormat*
    fromDate : Float64,   # DOUBLE
    toDate : Float64,   # DOUBLE
    result : LibC::SSizeT*,   # UFormattedDateInterval* in/out
    status : 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 udtitvfmt_formatToResultNative = Void Function(Pointer<IntPtr>, Double, Double, Pointer<IntPtr>, Pointer<Int32>);
typedef udtitvfmt_formatToResultDart = void Function(Pointer<IntPtr>, double, double, Pointer<IntPtr>, Pointer<Int32>);
final udtitvfmt_formatToResult = DynamicLibrary.open('icu.dll')
    .lookupFunction<udtitvfmt_formatToResultNative, udtitvfmt_formatToResultDart>('udtitvfmt_formatToResult');
// formatter : UDateIntervalFormat* -> Pointer<IntPtr>
// fromDate : DOUBLE -> Double
// toDate : DOUBLE -> Double
// result : UFormattedDateInterval* in/out -> Pointer<IntPtr>
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure udtitvfmt_formatToResult(
  formatter: Pointer;   // UDateIntervalFormat*
  fromDate: Double;   // DOUBLE
  toDate: Double;   // DOUBLE
  result: Pointer;   // UFormattedDateInterval* in/out
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icu.dll' name 'udtitvfmt_formatToResult';

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

foreign import ccall safe "udtitvfmt_formatToResult"
  c_udtitvfmt_formatToResult :: Ptr CIntPtr -> CDouble -> CDouble -> Ptr CIntPtr -> Ptr Int32 -> IO ()
-- formatter : UDateIntervalFormat* -> Ptr CIntPtr
-- fromDate : DOUBLE -> CDouble
-- toDate : DOUBLE -> CDouble
-- result : UFormattedDateInterval* in/out -> Ptr CIntPtr
-- status : 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 udtitvfmt_formattoresult =
  foreign "udtitvfmt_formatToResult"
    ((ptr intptr_t) @-> double @-> double @-> (ptr intptr_t) @-> (ptr int32_t) @-> returning void)
(* formatter : UDateIntervalFormat* -> (ptr intptr_t) *)
(* fromDate : DOUBLE -> double *)
(* toDate : DOUBLE -> double *)
(* result : UFormattedDateInterval* in/out -> (ptr intptr_t) *)
(* status : 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 icu (t "icu.dll"))
(cffi:use-foreign-library icu)

(cffi:defcfun ("udtitvfmt_formatToResult" udtitvfmt-format-to-result :convention :cdecl) :void
  (formatter :pointer)   ; UDateIntervalFormat*
  (from-date :double)   ; DOUBLE
  (to-date :double)   ; DOUBLE
  (result :pointer)   ; UFormattedDateInterval* in/out
  (status :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 $udtitvfmt_formatToResult = Win32::API::More->new('icu',
    'void udtitvfmt_formatToResult(LPVOID formatter, double fromDate, double toDate, LPVOID result, LPVOID status)');
# my $ret = $udtitvfmt_formatToResult->Call($formatter, $fromDate, $toDate, $result, $status);
# formatter : UDateIntervalFormat* -> LPVOID
# fromDate : DOUBLE -> double
# toDate : DOUBLE -> double
# result : UFormattedDateInterval* in/out -> LPVOID
# status : 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。