unorm2_getInstance

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

UNormalizer2* unorm2_getInstance(
    LPCSTR packageName,
    LPCSTR name,
    UNormalization2Mode mode,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function unorm2_getInstance(
    <MarshalAs(UnmanagedType.LPStr)> packageName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> name As String,   ' LPCSTR
    mode As Integer,   ' UNormalization2Mode
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' packageName : LPCSTR
' name : LPCSTR
' mode : UNormalization2Mode
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Function unorm2_getInstance Lib "icuuc" ( _
    ByVal packageName As String, _
    ByVal name As String, _
    ByVal mode As Long, _
    ByRef pErrorCode 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

unorm2_getInstance = ctypes.cdll.icuuc.unorm2_getInstance
unorm2_getInstance.restype = ctypes.c_void_p
unorm2_getInstance.argtypes = [
    wintypes.LPCSTR,  # packageName : LPCSTR
    wintypes.LPCSTR,  # name : LPCSTR
    ctypes.c_int,  # mode : UNormalization2Mode
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
unorm2_getInstance = Fiddle::Function.new(
  lib['unorm2_getInstance'],
  [
    Fiddle::TYPE_VOIDP,  # packageName : LPCSTR
    Fiddle::TYPE_VOIDP,  # name : LPCSTR
    Fiddle::TYPE_INT,  # mode : UNormalization2Mode
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn unorm2_getInstance(
        packageName: *const u8,  // LPCSTR
        name: *const u8,  // LPCSTR
        mode: i32,  // UNormalization2Mode
        pErrorCode: *mut i32  // UErrorCode* in/out
    ) -> *mut isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr unorm2_getInstance([MarshalAs(UnmanagedType.LPStr)] string packageName, [MarshalAs(UnmanagedType.LPStr)] string name, int mode, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_unorm2_getInstance' -Namespace Win32 -PassThru
# $api::unorm2_getInstance(packageName, name, mode, pErrorCode)

#uselib "icuuc.dll"
#func global unorm2_getInstance "unorm2_getInstance" sptr, sptr, sptr, sptr
; unorm2_getInstance packageName, name, mode, pErrorCode   ; 戻り値は stat
; packageName : LPCSTR -> "sptr"
; name : LPCSTR -> "sptr"
; mode : UNormalization2Mode -> "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_getInstance "unorm2_getInstance" str, str, int, int
; res = unorm2_getInstance(packageName, name, mode, pErrorCode)
; packageName : LPCSTR -> "str"
; name : LPCSTR -> "str"
; mode : UNormalization2Mode -> "int"
; pErrorCode : UErrorCode* in/out -> "int"

; UNormalizer2* unorm2_getInstance(LPCSTR packageName, LPCSTR name, UNormalization2Mode mode, UErrorCode* pErrorCode)
#uselib "icuuc.dll"
#cfunc global unorm2_getInstance "unorm2_getInstance" str, str, int, int
; res = unorm2_getInstance(packageName, name, mode, pErrorCode)
; packageName : LPCSTR -> "str"
; name : LPCSTR -> "str"
; mode : UNormalization2Mode -> "int"
; pErrorCode : UErrorCode* in/out -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procunorm2_getInstance = icuuc.NewProc("unorm2_getInstance")
)

// packageName (LPCSTR), name (LPCSTR), mode (UNormalization2Mode), pErrorCode (UErrorCode* in/out)
r1, _, err := procunorm2_getInstance.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(packageName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(name))),
	uintptr(mode),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UNormalizer2*

function unorm2_getInstance(
  packageName: PAnsiChar;   // LPCSTR
  name: PAnsiChar;   // LPCSTR
  mode: Integer;   // UNormalization2Mode
  pErrorCode: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'unorm2_getInstance';

result := DllCall("icuuc\unorm2_getInstance"
    , "AStr", packageName   ; LPCSTR
    , "AStr", name   ; LPCSTR
    , "Int", mode   ; UNormalization2Mode
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UNormalizer2*

●unorm2_getInstance(packageName, name, mode, pErrorCode) = DLL("icuuc.dll", "void* unorm2_getInstance(char*, char*, int, void*)")
# 呼び出し: unorm2_getInstance(packageName, name, mode, pErrorCode)
# packageName : LPCSTR -> "char*"
# name : LPCSTR -> "char*"
# mode : UNormalization2Mode -> "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。