ucal_setDefaultTimeZone

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

void ucal_setDefaultTimeZone(
    const WORD* zoneID,
    UErrorCode* ec
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ucal_setDefaultTimeZone(
    ByRef zoneID As UShort,   ' WORD*
    ByRef ec As Integer   ' UErrorCode* in/out
)
End Sub

' zoneID : WORD*
' ec : UErrorCode* in/out
Declare PtrSafe Sub ucal_setDefaultTimeZone Lib "icuin" ( _
    ByRef zoneID As Integer, _
    ByRef ec 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_setDefaultTimeZone = ctypes.cdll.icuin.ucal_setDefaultTimeZone
ucal_setDefaultTimeZone.restype = None
ucal_setDefaultTimeZone.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # zoneID : WORD*
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucal_setDefaultTimeZone = Fiddle::Function.new(
  lib['ucal_setDefaultTimeZone'],
  [
    Fiddle::TYPE_VOIDP,  # zoneID : WORD*
    Fiddle::TYPE_VOIDP,  # ec : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucal_setDefaultTimeZone(
        zoneID: *const u16,  // WORD*
        ec: *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_setDefaultTimeZone(ref ushort zoneID, ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucal_setDefaultTimeZone' -Namespace Win32 -PassThru
# $api::ucal_setDefaultTimeZone(zoneID, ec)

#uselib "icuin.dll"
#func global ucal_setDefaultTimeZone "ucal_setDefaultTimeZone" sptr, sptr
; ucal_setDefaultTimeZone varptr(zoneID), ec
; zoneID : WORD* -> "sptr"
; ec : UErrorCode* in/out -> "sptr"

#uselib "icuin.dll"
#func global ucal_setDefaultTimeZone "ucal_setDefaultTimeZone" var, int
; ucal_setDefaultTimeZone zoneID, ec
; zoneID : WORD* -> "var"
; ec : 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。

; void ucal_setDefaultTimeZone(WORD* zoneID, UErrorCode* ec)
#uselib "icuin.dll"
#func global ucal_setDefaultTimeZone "ucal_setDefaultTimeZone" var, int
; ucal_setDefaultTimeZone zoneID, ec
; zoneID : WORD* -> "var"
; ec : 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 (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucal_setDefaultTimeZone = icuin.NewProc("ucal_setDefaultTimeZone")
)

// zoneID (WORD*), ec (UErrorCode* in/out)
r1, _, err := procucal_setDefaultTimeZone.Call(
	uintptr(zoneID),
	uintptr(ec),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ucal_setDefaultTimeZone(
  zoneID: Pointer;   // WORD*
  ec: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'ucal_setDefaultTimeZone';

result := DllCall("icuin\ucal_setDefaultTimeZone"
    , "Ptr", zoneID   ; WORD*
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ucal_setDefaultTimeZone(zoneID, ec) = DLL("icuin.dll", "int ucal_setDefaultTimeZone(void*, void*)")
# 呼び出し: ucal_setDefaultTimeZone(zoneID, ec)
# zoneID : WORD* -> "void*"
# ec : 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。