ureldatefmt_format

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

INT ureldatefmt_format(
    const URelativeDateTimeFormatter* reldatefmt,
    DOUBLE offset,
    URelativeDateTimeUnit unit,
    WORD* result,
    INT resultCapacity,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ureldatefmt_format(
    ByRef reldatefmt As IntPtr,   ' URelativeDateTimeFormatter*
    offset As Double,   ' DOUBLE
    unit As Integer,   ' URelativeDateTimeUnit
    ByRef result As UShort,   ' WORD* in/out
    resultCapacity As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' reldatefmt : URelativeDateTimeFormatter*
' offset : DOUBLE
' unit : URelativeDateTimeUnit
' result : WORD* in/out
' resultCapacity : INT
' status : UErrorCode* in/out
Declare PtrSafe Function ureldatefmt_format Lib "icuin" ( _
    ByRef reldatefmt As LongPtr, _
    ByVal offset As Double, _
    ByVal unit As Long, _
    ByRef result As Integer, _
    ByVal resultCapacity As Long, _
    ByRef status 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

ureldatefmt_format = ctypes.cdll.icuin.ureldatefmt_format
ureldatefmt_format.restype = ctypes.c_int
ureldatefmt_format.argtypes = [
    ctypes.c_void_p,  # reldatefmt : URelativeDateTimeFormatter*
    ctypes.c_double,  # offset : DOUBLE
    ctypes.c_int,  # unit : URelativeDateTimeUnit
    ctypes.POINTER(ctypes.c_ushort),  # result : WORD* in/out
    ctypes.c_int,  # resultCapacity : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ureldatefmt_format = Fiddle::Function.new(
  lib['ureldatefmt_format'],
  [
    Fiddle::TYPE_VOIDP,  # reldatefmt : URelativeDateTimeFormatter*
    Fiddle::TYPE_DOUBLE,  # offset : DOUBLE
    Fiddle::TYPE_INT,  # unit : URelativeDateTimeUnit
    Fiddle::TYPE_VOIDP,  # result : WORD* in/out
    Fiddle::TYPE_INT,  # resultCapacity : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ureldatefmt_format(
        reldatefmt: *const isize,  // URelativeDateTimeFormatter*
        offset: f64,  // DOUBLE
        unit: i32,  // URelativeDateTimeUnit
        result: *mut u16,  // WORD* in/out
        resultCapacity: i32,  // INT
        status: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ureldatefmt_format(ref IntPtr reldatefmt, double offset, int unit, ref ushort result, int resultCapacity, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ureldatefmt_format' -Namespace Win32 -PassThru
# $api::ureldatefmt_format(reldatefmt, offset, unit, result, resultCapacity, status)

#uselib "icuin.dll"
#func global ureldatefmt_format "ureldatefmt_format" sptr, double, sptr, sptr, sptr, sptr
; ureldatefmt_format reldatefmt, offset, unit, varptr(result), resultCapacity, status   ; 戻り値は stat
; reldatefmt : URelativeDateTimeFormatter* -> "sptr"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "sptr"
; result : WORD* in/out -> "sptr"
; resultCapacity : INT -> "sptr"
; status : UErrorCode* in/out -> "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。

#uselib "icuin.dll"
#cfunc global ureldatefmt_format "ureldatefmt_format" int, double, int, var, int, int
; res = ureldatefmt_format(reldatefmt, offset, unit, result, resultCapacity, status)
; reldatefmt : URelativeDateTimeFormatter* -> "int"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "int"
; result : WORD* in/out -> "var"
; resultCapacity : INT -> "int"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; INT ureldatefmt_format(URelativeDateTimeFormatter* reldatefmt, DOUBLE offset, URelativeDateTimeUnit unit, WORD* result, INT resultCapacity, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global ureldatefmt_format "ureldatefmt_format" int, double, int, var, int, int
; res = ureldatefmt_format(reldatefmt, offset, unit, result, resultCapacity, status)
; reldatefmt : URelativeDateTimeFormatter* -> "int"
; offset : DOUBLE -> "double"
; unit : URelativeDateTimeUnit -> "int"
; result : WORD* in/out -> "var"
; resultCapacity : INT -> "int"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procureldatefmt_format = icuin.NewProc("ureldatefmt_format")
)

// reldatefmt (URelativeDateTimeFormatter*), offset (DOUBLE), unit (URelativeDateTimeUnit), result (WORD* in/out), resultCapacity (INT), status (UErrorCode* in/out)
r1, _, err := procureldatefmt_format.Call(
	uintptr(reldatefmt),
	uintptr(math.Float64bits(offset)),
	uintptr(unit),
	uintptr(result),
	uintptr(resultCapacity),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT
// 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。

function ureldatefmt_format(
  reldatefmt: Pointer;   // URelativeDateTimeFormatter*
  offset: Double;   // DOUBLE
  unit: Integer;   // URelativeDateTimeUnit
  result: Pointer;   // WORD* in/out
  resultCapacity: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ureldatefmt_format';

result := DllCall("icuin\ureldatefmt_format"
    , "Ptr", reldatefmt   ; URelativeDateTimeFormatter*
    , "Double", offset   ; DOUBLE
    , "Int", unit   ; URelativeDateTimeUnit
    , "Ptr", result   ; WORD* in/out
    , "Int", resultCapacity   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●ureldatefmt_format(reldatefmt, offset, unit, result, resultCapacity, status) = DLL("icuin.dll", "int ureldatefmt_format(void*, double, int, void*, int, void*)")
# 呼び出し: ureldatefmt_format(reldatefmt, offset, unit, result, resultCapacity, status)
# reldatefmt : URelativeDateTimeFormatter* -> "void*"
# offset : DOUBLE -> "double"
# unit : URelativeDateTimeUnit -> "int"
# result : WORD* in/out -> "void*"
# resultCapacity : INT -> "int"
# 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。