u_getFC_NFKC_Closure

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

INT u_getFC_NFKC_Closure(
    INT c,
    WORD* dest,
    INT destCapacity,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function u_getFC_NFKC_Closure(
    c As Integer,   ' INT
    ByRef dest As UShort,   ' WORD* in/out
    destCapacity As Integer,   ' INT
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
) As Integer
End Function

' c : INT
' dest : WORD* in/out
' destCapacity : INT
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Function u_getFC_NFKC_Closure Lib "icuuc" ( _
    ByVal c As Long, _
    ByRef dest As Integer, _
    ByVal destCapacity As Long, _
    ByRef pErrorCode 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

u_getFC_NFKC_Closure = ctypes.cdll.icuuc.u_getFC_NFKC_Closure
u_getFC_NFKC_Closure.restype = ctypes.c_int
u_getFC_NFKC_Closure.argtypes = [
    ctypes.c_int,  # c : INT
    ctypes.POINTER(ctypes.c_ushort),  # dest : WORD* in/out
    ctypes.c_int,  # destCapacity : INT
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_getFC_NFKC_Closure = Fiddle::Function.new(
  lib['u_getFC_NFKC_Closure'],
  [
    Fiddle::TYPE_INT,  # c : INT
    Fiddle::TYPE_VOIDP,  # dest : WORD* in/out
    Fiddle::TYPE_INT,  # destCapacity : INT
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_getFC_NFKC_Closure(
        c: i32,  // INT
        dest: *mut u16,  // WORD* in/out
        destCapacity: i32,  // INT
        pErrorCode: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int u_getFC_NFKC_Closure(int c, ref ushort dest, int destCapacity, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_getFC_NFKC_Closure' -Namespace Win32 -PassThru
# $api::u_getFC_NFKC_Closure(c, dest, destCapacity, pErrorCode)

#uselib "icuuc.dll"
#func global u_getFC_NFKC_Closure "u_getFC_NFKC_Closure" sptr, sptr, sptr, sptr
; u_getFC_NFKC_Closure c, varptr(dest), destCapacity, pErrorCode   ; 戻り値は stat
; c : INT -> "sptr"
; dest : WORD* in/out -> "sptr"
; destCapacity : INT -> "sptr"
; pErrorCode : 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 u_getFC_NFKC_Closure "u_getFC_NFKC_Closure" int, var, int, int
; res = u_getFC_NFKC_Closure(c, dest, destCapacity, pErrorCode)
; c : INT -> "int"
; dest : WORD* in/out -> "var"
; destCapacity : INT -> "int"
; pErrorCode : 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 u_getFC_NFKC_Closure(INT c, WORD* dest, INT destCapacity, UErrorCode* pErrorCode)
#uselib "icuuc.dll"
#cfunc global u_getFC_NFKC_Closure "u_getFC_NFKC_Closure" int, var, int, int
; res = u_getFC_NFKC_Closure(c, dest, destCapacity, pErrorCode)
; c : INT -> "int"
; dest : WORD* in/out -> "var"
; destCapacity : INT -> "int"
; pErrorCode : 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")
	procu_getFC_NFKC_Closure = icuuc.NewProc("u_getFC_NFKC_Closure")
)

// c (INT), dest (WORD* in/out), destCapacity (INT), pErrorCode (UErrorCode* in/out)
r1, _, err := procu_getFC_NFKC_Closure.Call(
	uintptr(c),
	uintptr(dest),
	uintptr(destCapacity),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function u_getFC_NFKC_Closure(
  c: Integer;   // INT
  dest: Pointer;   // WORD* in/out
  destCapacity: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'u_getFC_NFKC_Closure';

result := DllCall("icuuc\u_getFC_NFKC_Closure"
    , "Int", c   ; INT
    , "Ptr", dest   ; WORD* in/out
    , "Int", destCapacity   ; INT
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●u_getFC_NFKC_Closure(c, dest, destCapacity, pErrorCode) = DLL("icuuc.dll", "int u_getFC_NFKC_Closure(int, void*, int, void*)")
# 呼び出し: u_getFC_NFKC_Closure(c, dest, destCapacity, pErrorCode)
# c : INT -> "int"
# dest : WORD* in/out -> "void*"
# destCapacity : INT -> "int"
# pErrorCode : 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。