ureldatefmt_formatToResult

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

void ureldatefmt_formatToResult(
    const URelativeDateTimeFormatter* reldatefmt,
    DOUBLE offset,
    URelativeDateTimeUnit unit,
    UFormattedRelativeDateTime* result,
    UErrorCode* status
);

<DllImport("icu.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ureldatefmt_formatToResult(
    ByRef reldatefmt As IntPtr,   ' URelativeDateTimeFormatter*
    offset As Double,   ' DOUBLE
    unit As Integer,   ' URelativeDateTimeUnit
    ByRef result As IntPtr,   ' UFormattedRelativeDateTime* in/out
    ByRef status As Integer   ' UErrorCode* in/out
)
End Sub

' reldatefmt : URelativeDateTimeFormatter*
' offset : DOUBLE
' unit : URelativeDateTimeUnit
' result : UFormattedRelativeDateTime* in/out
' status : UErrorCode* in/out
Declare PtrSafe Sub ureldatefmt_formatToResult Lib "icu" ( _
    ByRef reldatefmt As LongPtr, _
    ByVal offset As Double, _
    ByVal unit As Long, _
    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

ureldatefmt_formatToResult = ctypes.cdll.icu.ureldatefmt_formatToResult
ureldatefmt_formatToResult.restype = None
ureldatefmt_formatToResult.argtypes = [
    ctypes.c_void_p,  # reldatefmt : URelativeDateTimeFormatter*
    ctypes.c_double,  # offset : DOUBLE
    ctypes.c_int,  # unit : URelativeDateTimeUnit
    ctypes.c_void_p,  # result : UFormattedRelativeDateTime* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icu.dll')
ureldatefmt_formatToResult = Fiddle::Function.new(
  lib['ureldatefmt_formatToResult'],
  [
    Fiddle::TYPE_VOIDP,  # reldatefmt : URelativeDateTimeFormatter*
    Fiddle::TYPE_DOUBLE,  # offset : DOUBLE
    Fiddle::TYPE_INT,  # unit : URelativeDateTimeUnit
    Fiddle::TYPE_VOIDP,  # result : UFormattedRelativeDateTime* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icu")]
extern "C" {
    fn ureldatefmt_formatToResult(
        reldatefmt: *const isize,  // URelativeDateTimeFormatter*
        offset: f64,  // DOUBLE
        unit: i32,  // URelativeDateTimeUnit
        result: *mut isize,  // UFormattedRelativeDateTime* 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 ureldatefmt_formatToResult(ref IntPtr reldatefmt, double offset, int unit, ref IntPtr result, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icu_ureldatefmt_formatToResult' -Namespace Win32 -PassThru
# $api::ureldatefmt_formatToResult(reldatefmt, offset, unit, result, status)

#uselib "icu.dll"
#func global ureldatefmt_formatToResult "ureldatefmt_formatToResult" sptr, double, sptr, sptr, sptr
; ureldatefmt_formatToResult reldatefmt, offset, unit, result, status
; reldatefmt : URelativeDateTimeFormatter* -> "sptr"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "sptr"
; result : UFormattedRelativeDateTime* in/out -> "sptr"
; status : UErrorCode* in/out -> "sptr"

#uselib "icu.dll"
#func global ureldatefmt_formatToResult "ureldatefmt_formatToResult" int, double, int, int, int
; ureldatefmt_formatToResult reldatefmt, offset, unit, result, status
; reldatefmt : URelativeDateTimeFormatter* -> "int"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "int"
; result : UFormattedRelativeDateTime* in/out -> "int"
; status : UErrorCode* in/out -> "int"

; void ureldatefmt_formatToResult(URelativeDateTimeFormatter* reldatefmt, DOUBLE offset, URelativeDateTimeUnit unit, UFormattedRelativeDateTime* result, UErrorCode* status)
#uselib "icu.dll"
#func global ureldatefmt_formatToResult "ureldatefmt_formatToResult" int, double, int, int, int
; ureldatefmt_formatToResult reldatefmt, offset, unit, result, status
; reldatefmt : URelativeDateTimeFormatter* -> "int"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "int"
; result : UFormattedRelativeDateTime* in/out -> "int"
; status : UErrorCode* in/out -> "int"

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

var (
	icu = windows.NewLazySystemDLL("icu.dll")
	procureldatefmt_formatToResult = icu.NewProc("ureldatefmt_formatToResult")
)

// reldatefmt (URelativeDateTimeFormatter*), offset (DOUBLE), unit (URelativeDateTimeUnit), result (UFormattedRelativeDateTime* in/out), status (UErrorCode* in/out)
r1, _, err := procureldatefmt_formatToResult.Call(
	uintptr(reldatefmt),
	uintptr(math.Float64bits(offset)),
	uintptr(unit),
	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 ureldatefmt_formatToResult(
  reldatefmt: Pointer;   // URelativeDateTimeFormatter*
  offset: Double;   // DOUBLE
  unit: Integer;   // URelativeDateTimeUnit
  result: Pointer;   // UFormattedRelativeDateTime* in/out
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icu.dll' name 'ureldatefmt_formatToResult';

result := DllCall("icu\ureldatefmt_formatToResult"
    , "Ptr", reldatefmt   ; URelativeDateTimeFormatter*
    , "Double", offset   ; DOUBLE
    , "Int", unit   ; URelativeDateTimeUnit
    , "Ptr", result   ; UFormattedRelativeDateTime* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ureldatefmt_formatToResult(reldatefmt, offset, unit, result, status) = DLL("icu.dll", "int ureldatefmt_formatToResult(void*, double, int, void*, void*)")
# 呼び出し: ureldatefmt_formatToResult(reldatefmt, offset, unit, result, status)
# reldatefmt : URelativeDateTimeFormatter* -> "void*"
# offset : DOUBLE -> "double"
# unit : URelativeDateTimeUnit -> "int"
# result : UFormattedRelativeDateTime* 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。