ubidi_getClassCallback

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

void ubidi_getClassCallback(
    UBiDi* pBiDi,
    UBiDiClassCallback* fn,
    const void** context
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ubidi_getClassCallback(
    ByRef pBiDi As IntPtr,   ' UBiDi* in/out
    fn As IntPtr,   ' UBiDiClassCallback* in/out
    context As IntPtr   ' void**
)
End Sub

' pBiDi : UBiDi* in/out
' fn : UBiDiClassCallback* in/out
' context : void**
Declare PtrSafe Sub ubidi_getClassCallback Lib "icuuc" ( _
    ByRef pBiDi As LongPtr, _
    ByVal fn As LongPtr, _
    ByVal context As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ubidi_getClassCallback = ctypes.cdll.icuuc.ubidi_getClassCallback
ubidi_getClassCallback.restype = None
ubidi_getClassCallback.argtypes = [
    ctypes.c_void_p,  # pBiDi : UBiDi* in/out
    ctypes.c_void_p,  # fn : UBiDiClassCallback* in/out
    ctypes.c_void_p,  # context : void**
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ubidi_getClassCallback = Fiddle::Function.new(
  lib['ubidi_getClassCallback'],
  [
    Fiddle::TYPE_VOIDP,  # pBiDi : UBiDi* in/out
    Fiddle::TYPE_VOIDP,  # fn : UBiDiClassCallback* in/out
    Fiddle::TYPE_VOIDP,  # context : void**
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ubidi_getClassCallback(
        pBiDi: *mut isize,  // UBiDi* in/out
        fn: *mut *const core::ffi::c_void,  // UBiDiClassCallback* in/out
        context: *const *const ()  // void**
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void ubidi_getClassCallback(ref IntPtr pBiDi, IntPtr fn, IntPtr context);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ubidi_getClassCallback' -Namespace Win32 -PassThru
# $api::ubidi_getClassCallback(pBiDi, fn, context)

#uselib "icuuc.dll"
#func global ubidi_getClassCallback "ubidi_getClassCallback" sptr, sptr, sptr
; ubidi_getClassCallback pBiDi, fn, context
; pBiDi : UBiDi* in/out -> "sptr"
; fn : UBiDiClassCallback* in/out -> "sptr"
; context : void** -> "sptr"

#uselib "icuuc.dll"
#func global ubidi_getClassCallback "ubidi_getClassCallback" int, sptr, sptr
; ubidi_getClassCallback pBiDi, fn, context
; pBiDi : UBiDi* in/out -> "int"
; fn : UBiDiClassCallback* in/out -> "sptr"
; context : void** -> "sptr"

; void ubidi_getClassCallback(UBiDi* pBiDi, UBiDiClassCallback* fn, void** context)
#uselib "icuuc.dll"
#func global ubidi_getClassCallback "ubidi_getClassCallback" int, intptr, intptr
; ubidi_getClassCallback pBiDi, fn, context
; pBiDi : UBiDi* in/out -> "int"
; fn : UBiDiClassCallback* in/out -> "intptr"
; context : void** -> "intptr"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procubidi_getClassCallback = icuuc.NewProc("ubidi_getClassCallback")
)

// pBiDi (UBiDi* in/out), fn (UBiDiClassCallback* in/out), context (void**)
r1, _, err := procubidi_getClassCallback.Call(
	uintptr(pBiDi),
	uintptr(fn),
	uintptr(context),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ubidi_getClassCallback(
  pBiDi: Pointer;   // UBiDi* in/out
  fn: Pointer;   // UBiDiClassCallback* in/out
  context: Pointer   // void**
); cdecl;
  external 'icuuc.dll' name 'ubidi_getClassCallback';

result := DllCall("icuuc\ubidi_getClassCallback"
    , "Ptr", pBiDi   ; UBiDi* in/out
    , "Ptr", fn   ; UBiDiClassCallback* in/out
    , "Ptr", context   ; void**
    , "Cdecl Int")   ; return: void

●ubidi_getClassCallback(pBiDi, fn, context) = DLL("icuuc.dll", "int ubidi_getClassCallback(void*, void*, void*)")
# 呼び出し: ubidi_getClassCallback(pBiDi, fn, context)
# pBiDi : UBiDi* in/out -> "void*"
# fn : UBiDiClassCallback* in/out -> "void*"
# context : void** -> "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。