ucal_openTimeZones

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

UEnumeration* ucal_openTimeZones(
    UErrorCode* ec
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucal_openTimeZones(
    ByRef ec As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' ec : UErrorCode* in/out
Declare PtrSafe Function ucal_openTimeZones Lib "icuin" ( _
    ByRef ec As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucal_openTimeZones = ctypes.cdll.icuin.ucal_openTimeZones
ucal_openTimeZones.restype = ctypes.c_void_p
ucal_openTimeZones.argtypes = [
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "icuin")]
extern "C" {
    fn ucal_openTimeZones(
        ec: *mut i32  // UErrorCode* in/out
    ) -> *mut isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ucal_openTimeZones(ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucal_openTimeZones' -Namespace Win32 -PassThru
# $api::ucal_openTimeZones(ec)

#uselib "icuin.dll"
#func global ucal_openTimeZones "ucal_openTimeZones" sptr
; ucal_openTimeZones ec   ; 戻り値は stat
; ec : 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 ucal_openTimeZones "ucal_openTimeZones" int
; res = ucal_openTimeZones(ec)
; ec : UErrorCode* in/out -> "int"

; UEnumeration* ucal_openTimeZones(UErrorCode* ec)
#uselib "icuin.dll"
#cfunc global ucal_openTimeZones "ucal_openTimeZones" int
; res = ucal_openTimeZones(ec)
; ec : UErrorCode* in/out -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucal_openTimeZones = icuin.NewProc("ucal_openTimeZones")
)

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

function ucal_openTimeZones(
  ec: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucal_openTimeZones';

result := DllCall("icuin\ucal_openTimeZones"
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UEnumeration*

●ucal_openTimeZones(ec) = DLL("icuin.dll", "void* ucal_openTimeZones(void*)")
# 呼び出し: ucal_openTimeZones(ec)
# 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。