unorm2_getRawDecomposition

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

INT unorm2_getRawDecomposition(
    const UNormalizer2* norm2,
    INT c,
    WORD* decomposition,
    INT capacity,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function unorm2_getRawDecomposition(
    ByRef norm2 As IntPtr,   ' UNormalizer2*
    c As Integer,   ' INT
    ByRef decomposition As UShort,   ' WORD* in/out
    capacity As Integer,   ' INT
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
) As Integer
End Function

' norm2 : UNormalizer2*
' c : INT
' decomposition : WORD* in/out
' capacity : INT
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Function unorm2_getRawDecomposition Lib "icuuc" ( _
    ByRef norm2 As LongPtr, _
    ByVal c As Long, _
    ByRef decomposition As Integer, _
    ByVal capacity 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

unorm2_getRawDecomposition = ctypes.cdll.icuuc.unorm2_getRawDecomposition
unorm2_getRawDecomposition.restype = ctypes.c_int
unorm2_getRawDecomposition.argtypes = [
    ctypes.c_void_p,  # norm2 : UNormalizer2*
    ctypes.c_int,  # c : INT
    ctypes.POINTER(ctypes.c_ushort),  # decomposition : WORD* in/out
    ctypes.c_int,  # capacity : INT
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
unorm2_getRawDecomposition = Fiddle::Function.new(
  lib['unorm2_getRawDecomposition'],
  [
    Fiddle::TYPE_VOIDP,  # norm2 : UNormalizer2*
    Fiddle::TYPE_INT,  # c : INT
    Fiddle::TYPE_VOIDP,  # decomposition : WORD* in/out
    Fiddle::TYPE_INT,  # capacity : INT
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn unorm2_getRawDecomposition(
        norm2: *const isize,  // UNormalizer2*
        c: i32,  // INT
        decomposition: *mut u16,  // WORD* in/out
        capacity: 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 unorm2_getRawDecomposition(ref IntPtr norm2, int c, ref ushort decomposition, int capacity, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_unorm2_getRawDecomposition' -Namespace Win32 -PassThru
# $api::unorm2_getRawDecomposition(norm2, c, decomposition, capacity, pErrorCode)

#uselib "icuuc.dll"
#func global unorm2_getRawDecomposition "unorm2_getRawDecomposition" sptr, sptr, sptr, sptr, sptr
; unorm2_getRawDecomposition norm2, c, varptr(decomposition), capacity, pErrorCode   ; 戻り値は stat
; norm2 : UNormalizer2* -> "sptr"
; c : INT -> "sptr"
; decomposition : WORD* in/out -> "sptr"
; capacity : 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 unorm2_getRawDecomposition "unorm2_getRawDecomposition" int, int, var, int, int
; res = unorm2_getRawDecomposition(norm2, c, decomposition, capacity, pErrorCode)
; norm2 : UNormalizer2* -> "int"
; c : INT -> "int"
; decomposition : WORD* in/out -> "var"
; capacity : 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 unorm2_getRawDecomposition(UNormalizer2* norm2, INT c, WORD* decomposition, INT capacity, UErrorCode* pErrorCode)
#uselib "icuuc.dll"
#cfunc global unorm2_getRawDecomposition "unorm2_getRawDecomposition" int, int, var, int, int
; res = unorm2_getRawDecomposition(norm2, c, decomposition, capacity, pErrorCode)
; norm2 : UNormalizer2* -> "int"
; c : INT -> "int"
; decomposition : WORD* in/out -> "var"
; capacity : 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")
	procunorm2_getRawDecomposition = icuuc.NewProc("unorm2_getRawDecomposition")
)

// norm2 (UNormalizer2*), c (INT), decomposition (WORD* in/out), capacity (INT), pErrorCode (UErrorCode* in/out)
r1, _, err := procunorm2_getRawDecomposition.Call(
	uintptr(norm2),
	uintptr(c),
	uintptr(decomposition),
	uintptr(capacity),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function unorm2_getRawDecomposition(
  norm2: Pointer;   // UNormalizer2*
  c: Integer;   // INT
  decomposition: Pointer;   // WORD* in/out
  capacity: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'unorm2_getRawDecomposition';

result := DllCall("icuuc\unorm2_getRawDecomposition"
    , "Ptr", norm2   ; UNormalizer2*
    , "Int", c   ; INT
    , "Ptr", decomposition   ; WORD* in/out
    , "Int", capacity   ; INT
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●unorm2_getRawDecomposition(norm2, c, decomposition, capacity, pErrorCode) = DLL("icuuc.dll", "int unorm2_getRawDecomposition(void*, int, void*, int, void*)")
# 呼び出し: unorm2_getRawDecomposition(norm2, c, decomposition, capacity, pErrorCode)
# norm2 : UNormalizer2* -> "void*"
# c : INT -> "int"
# decomposition : WORD* in/out -> "void*"
# capacity : 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。