ures_openU

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

UResourceBundle* ures_openU(
    const WORD* packageName,
    LPCSTR locale,
    UErrorCode* status
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ures_openU(
    ByRef packageName As UShort,   ' WORD*
    <MarshalAs(UnmanagedType.LPStr)> locale As String,   ' LPCSTR
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' packageName : WORD*
' locale : LPCSTR
' status : UErrorCode* in/out
Declare PtrSafe Function ures_openU Lib "icuuc" ( _
    ByRef packageName As Integer, _
    ByVal locale As String, _
    ByRef status 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

ures_openU = ctypes.cdll.icuuc.ures_openU
ures_openU.restype = ctypes.c_void_p
ures_openU.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # packageName : WORD*
    wintypes.LPCSTR,  # locale : LPCSTR
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ures_openU = Fiddle::Function.new(
  lib['ures_openU'],
  [
    Fiddle::TYPE_VOIDP,  # packageName : WORD*
    Fiddle::TYPE_VOIDP,  # locale : LPCSTR
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ures_openU(
        packageName: *const u16,  // WORD*
        locale: *const u8,  // LPCSTR
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ures_openU(ref ushort packageName, [MarshalAs(UnmanagedType.LPStr)] string locale, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ures_openU' -Namespace Win32 -PassThru
# $api::ures_openU(packageName, locale, status)

#uselib "icuuc.dll"
#func global ures_openU "ures_openU" sptr, sptr, sptr
; ures_openU varptr(packageName), locale, status   ; 戻り値は stat
; packageName : WORD* -> "sptr"
; locale : LPCSTR -> "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 "icuuc.dll"
#cfunc global ures_openU "ures_openU" var, str, int
; res = ures_openU(packageName, locale, status)
; packageName : WORD* -> "var"
; locale : LPCSTR -> "str"
; 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。

; UResourceBundle* ures_openU(WORD* packageName, LPCSTR locale, UErrorCode* status)
#uselib "icuuc.dll"
#cfunc global ures_openU "ures_openU" var, str, int
; res = ures_openU(packageName, locale, status)
; packageName : WORD* -> "var"
; locale : LPCSTR -> "str"
; 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 (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procures_openU = icuuc.NewProc("ures_openU")
)

// packageName (WORD*), locale (LPCSTR), status (UErrorCode* in/out)
r1, _, err := procures_openU.Call(
	uintptr(packageName),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(locale))),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UResourceBundle*

function ures_openU(
  packageName: Pointer;   // WORD*
  locale: PAnsiChar;   // LPCSTR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'ures_openU';

result := DllCall("icuuc\ures_openU"
    , "Ptr", packageName   ; WORD*
    , "AStr", locale   ; LPCSTR
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UResourceBundle*

●ures_openU(packageName, locale, status) = DLL("icuuc.dll", "void* ures_openU(void*, char*, void*)")
# 呼び出し: ures_openU(packageName, locale, status)
# packageName : WORD* -> "void*"
# locale : LPCSTR -> "char*"
# 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。