ucol_cloneBinary

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

INT ucol_cloneBinary(
    const UCollator* coll,
    BYTE* buffer,
    INT capacity,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_cloneBinary(
    ByRef coll As IntPtr,   ' UCollator*
    buffer As IntPtr,   ' BYTE* in/out
    capacity As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' coll : UCollator*
' buffer : BYTE* in/out
' capacity : INT
' status : UErrorCode* in/out
Declare PtrSafe Function ucol_cloneBinary Lib "icuin" ( _
    ByRef coll As LongPtr, _
    ByVal buffer As LongPtr, _
    ByVal capacity As Long, _
    ByRef status 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

ucol_cloneBinary = ctypes.cdll.icuin.ucol_cloneBinary
ucol_cloneBinary.restype = ctypes.c_int
ucol_cloneBinary.argtypes = [
    ctypes.c_void_p,  # coll : UCollator*
    ctypes.POINTER(ctypes.c_ubyte),  # buffer : BYTE* in/out
    ctypes.c_int,  # capacity : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_cloneBinary = Fiddle::Function.new(
  lib['ucol_cloneBinary'],
  [
    Fiddle::TYPE_VOIDP,  # coll : UCollator*
    Fiddle::TYPE_VOIDP,  # buffer : BYTE* in/out
    Fiddle::TYPE_INT,  # capacity : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_cloneBinary(
        coll: *const isize,  // UCollator*
        buffer: *mut u8,  // BYTE* in/out
        capacity: i32,  // INT
        status: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ucol_cloneBinary(ref IntPtr coll, IntPtr buffer, int capacity, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucol_cloneBinary' -Namespace Win32 -PassThru
# $api::ucol_cloneBinary(coll, buffer, capacity, status)

#uselib "icuin.dll"
#func global ucol_cloneBinary "ucol_cloneBinary" sptr, sptr, sptr, sptr
; ucol_cloneBinary coll, varptr(buffer), capacity, status   ; 戻り値は stat
; coll : UCollator* -> "sptr"
; buffer : BYTE* in/out -> "sptr"
; capacity : 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_cloneBinary "ucol_cloneBinary" int, var, int, int
; res = ucol_cloneBinary(coll, buffer, capacity, status)
; coll : UCollator* -> "int"
; buffer : BYTE* in/out -> "var"
; capacity : 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。

; INT ucol_cloneBinary(UCollator* coll, BYTE* buffer, INT capacity, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global ucol_cloneBinary "ucol_cloneBinary" int, var, int, int
; res = ucol_cloneBinary(coll, buffer, capacity, status)
; coll : UCollator* -> "int"
; buffer : BYTE* in/out -> "var"
; capacity : 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_cloneBinary = icuin.NewProc("ucol_cloneBinary")
)

// coll (UCollator*), buffer (BYTE* in/out), capacity (INT), status (UErrorCode* in/out)
r1, _, err := procucol_cloneBinary.Call(
	uintptr(coll),
	uintptr(buffer),
	uintptr(capacity),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucol_cloneBinary(
  coll: Pointer;   // UCollator*
  buffer: Pointer;   // BYTE* in/out
  capacity: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_cloneBinary';

result := DllCall("icuin\ucol_cloneBinary"
    , "Ptr", coll   ; UCollator*
    , "Ptr", buffer   ; BYTE* in/out
    , "Int", capacity   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●ucol_cloneBinary(coll, buffer, capacity, status) = DLL("icuin.dll", "int ucol_cloneBinary(void*, void*, int, void*)")
# 呼び出し: ucol_cloneBinary(coll, buffer, capacity, status)
# coll : UCollator* -> "void*"
# buffer : BYTE* in/out -> "void*"
# capacity : 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。