umsg_vparse

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

void umsg_vparse(
    const void** fmt,
    const WORD* source,
    INT sourceLength,
    INT* count,
    CHAR* ap,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub umsg_vparse(
    fmt As IntPtr,   ' void**
    ByRef source As UShort,   ' WORD*
    sourceLength As Integer,   ' INT
    ByRef count As Integer,   ' INT* in/out
    ap As IntPtr,   ' CHAR* in/out
    ByRef status As Integer   ' UErrorCode* in/out
)
End Sub

' fmt : void**
' source : WORD*
' sourceLength : INT
' count : INT* in/out
' ap : CHAR* in/out
' status : UErrorCode* in/out
Declare PtrSafe Sub umsg_vparse Lib "icuin" ( _
    ByVal fmt As LongPtr, _
    ByRef source As Integer, _
    ByVal sourceLength As Long, _
    ByRef count As Long, _
    ByVal ap 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

umsg_vparse = ctypes.cdll.icuin.umsg_vparse
umsg_vparse.restype = None
umsg_vparse.argtypes = [
    ctypes.c_void_p,  # fmt : void**
    ctypes.POINTER(ctypes.c_ushort),  # source : WORD*
    ctypes.c_int,  # sourceLength : INT
    ctypes.POINTER(ctypes.c_int),  # count : INT* in/out
    ctypes.POINTER(ctypes.c_byte),  # ap : CHAR* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
umsg_vparse = Fiddle::Function.new(
  lib['umsg_vparse'],
  [
    Fiddle::TYPE_VOIDP,  # fmt : void**
    Fiddle::TYPE_VOIDP,  # source : WORD*
    Fiddle::TYPE_INT,  # sourceLength : INT
    Fiddle::TYPE_VOIDP,  # count : INT* in/out
    Fiddle::TYPE_VOIDP,  # ap : CHAR* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn umsg_vparse(
        fmt: *const *const (),  // void**
        source: *const u16,  // WORD*
        sourceLength: i32,  // INT
        count: *mut i32,  // INT* in/out
        ap: *mut i8,  // CHAR* in/out
        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 umsg_vparse(IntPtr fmt, ref ushort source, int sourceLength, ref int count, IntPtr ap, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_umsg_vparse' -Namespace Win32 -PassThru
# $api::umsg_vparse(fmt, source, sourceLength, count, ap, status)

#uselib "icuin.dll"
#func global umsg_vparse "umsg_vparse" sptr, sptr, sptr, sptr, sptr, sptr
; umsg_vparse fmt, varptr(source), sourceLength, varptr(count), varptr(ap), status
; fmt : void** -> "sptr"
; source : WORD* -> "sptr"
; sourceLength : INT -> "sptr"
; count : INT* in/out -> "sptr"
; ap : CHAR* in/out -> "sptr"
; status : UErrorCode* in/out -> "sptr"

#uselib "icuin.dll"
#func global umsg_vparse "umsg_vparse" sptr, var, int, var, var, int
; umsg_vparse fmt, source, sourceLength, count, ap, status
; fmt : void** -> "sptr"
; source : WORD* -> "var"
; sourceLength : INT -> "int"
; count : INT* in/out -> "var"
; ap : CHAR* in/out -> "var"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; void umsg_vparse(void** fmt, WORD* source, INT sourceLength, INT* count, CHAR* ap, UErrorCode* status)
#uselib "icuin.dll"
#func global umsg_vparse "umsg_vparse" intptr, var, int, var, var, int
; umsg_vparse fmt, source, sourceLength, count, ap, status
; fmt : void** -> "intptr"
; source : WORD* -> "var"
; sourceLength : INT -> "int"
; count : INT* in/out -> "var"
; ap : CHAR* in/out -> "var"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procumsg_vparse = icuin.NewProc("umsg_vparse")
)

// fmt (void**), source (WORD*), sourceLength (INT), count (INT* in/out), ap (CHAR* in/out), status (UErrorCode* in/out)
r1, _, err := procumsg_vparse.Call(
	uintptr(fmt),
	uintptr(source),
	uintptr(sourceLength),
	uintptr(count),
	uintptr(ap),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure umsg_vparse(
  fmt: Pointer;   // void**
  source: Pointer;   // WORD*
  sourceLength: Integer;   // INT
  count: Pointer;   // INT* in/out
  ap: Pointer;   // CHAR* in/out
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'umsg_vparse';

result := DllCall("icuin\umsg_vparse"
    , "Ptr", fmt   ; void**
    , "Ptr", source   ; WORD*
    , "Int", sourceLength   ; INT
    , "Ptr", count   ; INT* in/out
    , "Ptr", ap   ; CHAR* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●umsg_vparse(fmt, source, sourceLength, count, ap, status) = DLL("icuin.dll", "int umsg_vparse(void*, void*, int, void*, void*, void*)")
# 呼び出し: umsg_vparse(fmt, source, sourceLength, count, ap, status)
# fmt : void** -> "void*"
# source : WORD* -> "void*"
# sourceLength : INT -> "int"
# count : INT* in/out -> "void*"
# ap : CHAR* in/out -> "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。