ucol_openElements

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

UCollationElements* ucol_openElements(
    const UCollator* coll,
    const WORD* text,
    INT textLength,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_openElements(
    ByRef coll As IntPtr,   ' UCollator*
    ByRef text As UShort,   ' WORD*
    textLength As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' coll : UCollator*
' text : WORD*
' textLength : INT
' status : UErrorCode* in/out
Declare PtrSafe Function ucol_openElements Lib "icuin" ( _
    ByRef coll As LongPtr, _
    ByRef text As Integer, _
    ByVal textLength As Long, _
    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

ucol_openElements = ctypes.cdll.icuin.ucol_openElements
ucol_openElements.restype = ctypes.c_void_p
ucol_openElements.argtypes = [
    ctypes.c_void_p,  # coll : UCollator*
    ctypes.POINTER(ctypes.c_ushort),  # text : WORD*
    ctypes.c_int,  # textLength : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_openElements = Fiddle::Function.new(
  lib['ucol_openElements'],
  [
    Fiddle::TYPE_VOIDP,  # coll : UCollator*
    Fiddle::TYPE_VOIDP,  # text : WORD*
    Fiddle::TYPE_INT,  # textLength : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_openElements(
        coll: *const isize,  // UCollator*
        text: *const u16,  // WORD*
        textLength: i32,  // INT
        status: *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 ucol_openElements(ref IntPtr coll, ref ushort text, int textLength, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucol_openElements' -Namespace Win32 -PassThru
# $api::ucol_openElements(coll, text, textLength, status)

#uselib "icuin.dll"
#func global ucol_openElements "ucol_openElements" sptr, sptr, sptr, sptr
; ucol_openElements coll, varptr(text), textLength, status   ; 戻り値は stat
; coll : UCollator* -> "sptr"
; text : WORD* -> "sptr"
; textLength : 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 ucol_openElements "ucol_openElements" int, var, int, int
; res = ucol_openElements(coll, text, textLength, status)
; coll : UCollator* -> "int"
; text : WORD* -> "var"
; textLength : 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。

; UCollationElements* ucol_openElements(UCollator* coll, WORD* text, INT textLength, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global ucol_openElements "ucol_openElements" int, var, int, int
; res = ucol_openElements(coll, text, textLength, status)
; coll : UCollator* -> "int"
; text : WORD* -> "var"
; textLength : 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 (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucol_openElements = icuin.NewProc("ucol_openElements")
)

// coll (UCollator*), text (WORD*), textLength (INT), status (UErrorCode* in/out)
r1, _, err := procucol_openElements.Call(
	uintptr(coll),
	uintptr(text),
	uintptr(textLength),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UCollationElements*

function ucol_openElements(
  coll: Pointer;   // UCollator*
  text: Pointer;   // WORD*
  textLength: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucol_openElements';

result := DllCall("icuin\ucol_openElements"
    , "Ptr", coll   ; UCollator*
    , "Ptr", text   ; WORD*
    , "Int", textLength   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UCollationElements*

●ucol_openElements(coll, text, textLength, status) = DLL("icuin.dll", "void* ucol_openElements(void*, void*, int, void*)")
# 呼び出し: ucol_openElements(coll, text, textLength, status)
# coll : UCollator* -> "void*"
# text : WORD* -> "void*"
# textLength : 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。