uregex_start

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

INT uregex_start(
    URegularExpression* regexp,
    INT groupNum,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uregex_start(
    ByRef regexp As IntPtr,   ' URegularExpression* in/out
    groupNum As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' regexp : URegularExpression* in/out
' groupNum : INT
' status : UErrorCode* in/out
Declare PtrSafe Function uregex_start Lib "icuin" ( _
    ByRef regexp As LongPtr, _
    ByVal groupNum 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

uregex_start = ctypes.cdll.icuin.uregex_start
uregex_start.restype = ctypes.c_int
uregex_start.argtypes = [
    ctypes.c_void_p,  # regexp : URegularExpression* in/out
    ctypes.c_int,  # groupNum : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
uregex_start = Fiddle::Function.new(
  lib['uregex_start'],
  [
    Fiddle::TYPE_VOIDP,  # regexp : URegularExpression* in/out
    Fiddle::TYPE_INT,  # groupNum : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn uregex_start(
        regexp: *mut isize,  // URegularExpression* in/out
        groupNum: 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 uregex_start(ref IntPtr regexp, int groupNum, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_uregex_start' -Namespace Win32 -PassThru
# $api::uregex_start(regexp, groupNum, status)

#uselib "icuin.dll"
#func global uregex_start "uregex_start" sptr, sptr, sptr
; uregex_start regexp, groupNum, status   ; 戻り値は stat
; regexp : URegularExpression* in/out -> "sptr"
; groupNum : 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 uregex_start "uregex_start" int, int, int
; res = uregex_start(regexp, groupNum, status)
; regexp : URegularExpression* in/out -> "int"
; groupNum : INT -> "int"
; status : UErrorCode* in/out -> "int"

; INT uregex_start(URegularExpression* regexp, INT groupNum, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global uregex_start "uregex_start" int, int, int
; res = uregex_start(regexp, groupNum, status)
; regexp : URegularExpression* in/out -> "int"
; groupNum : INT -> "int"
; status : UErrorCode* in/out -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procuregex_start = icuin.NewProc("uregex_start")
)

// regexp (URegularExpression* in/out), groupNum (INT), status (UErrorCode* in/out)
r1, _, err := procuregex_start.Call(
	uintptr(regexp),
	uintptr(groupNum),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function uregex_start(
  regexp: Pointer;   // URegularExpression* in/out
  groupNum: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'uregex_start';

result := DllCall("icuin\uregex_start"
    , "Ptr", regexp   ; URegularExpression* in/out
    , "Int", groupNum   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●uregex_start(regexp, groupNum, status) = DLL("icuin.dll", "int uregex_start(void*, int, void*)")
# 呼び出し: uregex_start(regexp, groupNum, status)
# regexp : URegularExpression* in/out -> "void*"
# groupNum : 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。