u_catopen

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

UResourceBundle* u_catopen(
    LPCSTR name,
    LPCSTR locale,
    UErrorCode* ec
);

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

' name : LPCSTR
' locale : LPCSTR
' ec : UErrorCode* in/out
Declare PtrSafe Function u_catopen Lib "icuuc" ( _
    ByVal name As String, _
    ByVal locale As String, _
    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_catopen = ctypes.cdll.icuuc.u_catopen
u_catopen.restype = ctypes.c_void_p
u_catopen.argtypes = [
    wintypes.LPCSTR,  # name : LPCSTR
    wintypes.LPCSTR,  # locale : LPCSTR
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_catopen = Fiddle::Function.new(
  lib['u_catopen'],
  [
    Fiddle::TYPE_VOIDP,  # name : LPCSTR
    Fiddle::TYPE_VOIDP,  # locale : LPCSTR
    Fiddle::TYPE_VOIDP,  # ec : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_catopen(
        name: *const u8,  // LPCSTR
        locale: *const u8,  // LPCSTR
        ec: *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 u_catopen([MarshalAs(UnmanagedType.LPStr)] string name, [MarshalAs(UnmanagedType.LPStr)] string locale, ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_catopen' -Namespace Win32 -PassThru
# $api::u_catopen(name, locale, ec)

#uselib "icuuc.dll"
#func global u_catopen "u_catopen" sptr, sptr, sptr
; u_catopen name, locale, ec   ; 戻り値は stat
; name : LPCSTR -> "sptr"
; locale : LPCSTR -> "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_catopen "u_catopen" str, str, int
; res = u_catopen(name, locale, ec)
; name : LPCSTR -> "str"
; locale : LPCSTR -> "str"
; ec : UErrorCode* in/out -> "int"

; UResourceBundle* u_catopen(LPCSTR name, LPCSTR locale, UErrorCode* ec)
#uselib "icuuc.dll"
#cfunc global u_catopen "u_catopen" str, str, int
; res = u_catopen(name, locale, ec)
; name : LPCSTR -> "str"
; locale : LPCSTR -> "str"
; ec : UErrorCode* in/out -> "int"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_catopen = icuuc.NewProc("u_catopen")
)

// name (LPCSTR), locale (LPCSTR), ec (UErrorCode* in/out)
r1, _, err := procu_catopen.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(name))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(locale))),
	uintptr(ec),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UResourceBundle*

function u_catopen(
  name: PAnsiChar;   // LPCSTR
  locale: PAnsiChar;   // LPCSTR
  ec: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'u_catopen';

result := DllCall("icuuc\u_catopen"
    , "AStr", name   ; LPCSTR
    , "AStr", locale   ; LPCSTR
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UResourceBundle*

●u_catopen(name, locale, ec) = DLL("icuuc.dll", "void* u_catopen(char*, char*, void*)")
# 呼び出し: u_catopen(name, locale, ec)
# name : LPCSTR -> "char*"
# locale : LPCSTR -> "char*"
# 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。