uregex_getMatchCallback

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

void uregex_getMatchCallback(
    const URegularExpression* regexp,
    URegexMatchCallback* callback,
    const void** context,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub uregex_getMatchCallback(
    ByRef regexp As IntPtr,   ' URegularExpression*
    callback As IntPtr,   ' URegexMatchCallback* in/out
    context As IntPtr,   ' void**
    ByRef status As Integer   ' UErrorCode* in/out
)
End Sub

' regexp : URegularExpression*
' callback : URegexMatchCallback* in/out
' context : void**
' status : UErrorCode* in/out
Declare PtrSafe Sub uregex_getMatchCallback Lib "icuin" ( _
    ByRef regexp As LongPtr, _
    ByVal callback As LongPtr, _
    ByVal context As LongPtr, _
    ByRef status 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_getMatchCallback = ctypes.cdll.icuin.uregex_getMatchCallback
uregex_getMatchCallback.restype = None
uregex_getMatchCallback.argtypes = [
    ctypes.c_void_p,  # regexp : URegularExpression*
    ctypes.c_void_p,  # callback : URegexMatchCallback* in/out
    ctypes.c_void_p,  # context : void**
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
uregex_getMatchCallback = Fiddle::Function.new(
  lib['uregex_getMatchCallback'],
  [
    Fiddle::TYPE_VOIDP,  # regexp : URegularExpression*
    Fiddle::TYPE_VOIDP,  # callback : URegexMatchCallback* in/out
    Fiddle::TYPE_VOIDP,  # context : void**
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn uregex_getMatchCallback(
        regexp: *const isize,  // URegularExpression*
        callback: *mut *const core::ffi::c_void,  // URegexMatchCallback* in/out
        context: *const *const (),  // void**
        status: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void uregex_getMatchCallback(ref IntPtr regexp, IntPtr callback, IntPtr context, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_uregex_getMatchCallback' -Namespace Win32 -PassThru
# $api::uregex_getMatchCallback(regexp, callback, context, status)

#uselib "icuin.dll"
#func global uregex_getMatchCallback "uregex_getMatchCallback" sptr, sptr, sptr, sptr
; uregex_getMatchCallback regexp, callback, context, status
; regexp : URegularExpression* -> "sptr"
; callback : URegexMatchCallback* in/out -> "sptr"
; context : void** -> "sptr"
; status : UErrorCode* in/out -> "sptr"

#uselib "icuin.dll"
#func global uregex_getMatchCallback "uregex_getMatchCallback" int, sptr, sptr, int
; uregex_getMatchCallback regexp, callback, context, status
; regexp : URegularExpression* -> "int"
; callback : URegexMatchCallback* in/out -> "sptr"
; context : void** -> "sptr"
; status : UErrorCode* in/out -> "int"

; void uregex_getMatchCallback(URegularExpression* regexp, URegexMatchCallback* callback, void** context, UErrorCode* status)
#uselib "icuin.dll"
#func global uregex_getMatchCallback "uregex_getMatchCallback" int, intptr, intptr, int
; uregex_getMatchCallback regexp, callback, context, status
; regexp : URegularExpression* -> "int"
; callback : URegexMatchCallback* in/out -> "intptr"
; context : void** -> "intptr"
; status : UErrorCode* in/out -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procuregex_getMatchCallback = icuin.NewProc("uregex_getMatchCallback")
)

// regexp (URegularExpression*), callback (URegexMatchCallback* in/out), context (void**), status (UErrorCode* in/out)
r1, _, err := procuregex_getMatchCallback.Call(
	uintptr(regexp),
	uintptr(callback),
	uintptr(context),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure uregex_getMatchCallback(
  regexp: Pointer;   // URegularExpression*
  callback: Pointer;   // URegexMatchCallback* in/out
  context: Pointer;   // void**
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'uregex_getMatchCallback';

result := DllCall("icuin\uregex_getMatchCallback"
    , "Ptr", regexp   ; URegularExpression*
    , "Ptr", callback   ; URegexMatchCallback* in/out
    , "Ptr", context   ; void**
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

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