u_catgets

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

WORD* u_catgets(
    UResourceBundle* catd,
    INT set_num,
    INT msg_num,
    const WORD* s,
    INT* len,
    UErrorCode* ec
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function u_catgets(
    ByRef catd As IntPtr,   ' UResourceBundle* in/out
    set_num As Integer,   ' INT
    msg_num As Integer,   ' INT
    ByRef s As UShort,   ' WORD*
    ByRef len As Integer,   ' INT* in/out
    ByRef ec As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' catd : UResourceBundle* in/out
' set_num : INT
' msg_num : INT
' s : WORD*
' len : INT* in/out
' ec : UErrorCode* in/out
Declare PtrSafe Function u_catgets Lib "icuuc" ( _
    ByRef catd As LongPtr, _
    ByVal set_num As Long, _
    ByVal msg_num As Long, _
    ByRef s As Integer, _
    ByRef len As Long, _
    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

u_catgets = ctypes.cdll.icuuc.u_catgets
u_catgets.restype = ctypes.c_void_p
u_catgets.argtypes = [
    ctypes.c_void_p,  # catd : UResourceBundle* in/out
    ctypes.c_int,  # set_num : INT
    ctypes.c_int,  # msg_num : INT
    ctypes.POINTER(ctypes.c_ushort),  # s : WORD*
    ctypes.POINTER(ctypes.c_int),  # len : INT* in/out
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_catgets = Fiddle::Function.new(
  lib['u_catgets'],
  [
    Fiddle::TYPE_VOIDP,  # catd : UResourceBundle* in/out
    Fiddle::TYPE_INT,  # set_num : INT
    Fiddle::TYPE_INT,  # msg_num : INT
    Fiddle::TYPE_VOIDP,  # s : WORD*
    Fiddle::TYPE_VOIDP,  # len : INT* in/out
    Fiddle::TYPE_VOIDP,  # ec : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_catgets(
        catd: *mut isize,  // UResourceBundle* in/out
        set_num: i32,  // INT
        msg_num: i32,  // INT
        s: *const u16,  // WORD*
        len: *mut i32,  // INT* in/out
        ec: *mut i32  // UErrorCode* in/out
    ) -> *mut u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr u_catgets(ref IntPtr catd, int set_num, int msg_num, ref ushort s, ref int len, ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_catgets' -Namespace Win32 -PassThru
# $api::u_catgets(catd, set_num, msg_num, s, len, ec)

#uselib "icuuc.dll"
#func global u_catgets "u_catgets" sptr, sptr, sptr, sptr, sptr, sptr
; u_catgets catd, set_num, msg_num, varptr(s), varptr(len), ec   ; 戻り値は stat
; catd : UResourceBundle* in/out -> "sptr"
; set_num : INT -> "sptr"
; msg_num : INT -> "sptr"
; s : WORD* -> "sptr"
; len : INT* in/out -> "sptr"
; 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 "icuuc.dll"
#cfunc global u_catgets "u_catgets" int, int, int, var, var, int
; res = u_catgets(catd, set_num, msg_num, s, len, ec)
; catd : UResourceBundle* in/out -> "int"
; set_num : INT -> "int"
; msg_num : INT -> "int"
; s : WORD* -> "var"
; len : INT* in/out -> "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。

; WORD* u_catgets(UResourceBundle* catd, INT set_num, INT msg_num, WORD* s, INT* len, UErrorCode* ec)
#uselib "icuuc.dll"
#cfunc global u_catgets "u_catgets" int, int, int, var, var, int
; res = u_catgets(catd, set_num, msg_num, s, len, ec)
; catd : UResourceBundle* in/out -> "int"
; set_num : INT -> "int"
; msg_num : INT -> "int"
; s : WORD* -> "var"
; len : INT* in/out -> "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 (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_catgets = icuuc.NewProc("u_catgets")
)

// catd (UResourceBundle* in/out), set_num (INT), msg_num (INT), s (WORD*), len (INT* in/out), ec (UErrorCode* in/out)
r1, _, err := procu_catgets.Call(
	uintptr(catd),
	uintptr(set_num),
	uintptr(msg_num),
	uintptr(s),
	uintptr(len),
	uintptr(ec),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WORD*

function u_catgets(
  catd: Pointer;   // UResourceBundle* in/out
  set_num: Integer;   // INT
  msg_num: Integer;   // INT
  s: Pointer;   // WORD*
  len: Pointer;   // INT* in/out
  ec: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'u_catgets';

result := DllCall("icuuc\u_catgets"
    , "Ptr", catd   ; UResourceBundle* in/out
    , "Int", set_num   ; INT
    , "Int", msg_num   ; INT
    , "Ptr", s   ; WORD*
    , "Ptr", len   ; INT* in/out
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: WORD*

●u_catgets(catd, set_num, msg_num, s, len, ec) = DLL("icuuc.dll", "void* u_catgets(void*, int, int, void*, void*, void*)")
# 呼び出し: u_catgets(catd, set_num, msg_num, s, len, ec)
# catd : UResourceBundle* in/out -> "void*"
# set_num : INT -> "int"
# msg_num : INT -> "int"
# s : WORD* -> "void*"
# len : INT* in/out -> "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。