ucol_getBound

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

INT ucol_getBound(
    const BYTE* source,
    INT sourceLength,
    UColBoundMode boundType,
    DWORD noOfLevels,
    BYTE* result,
    INT resultLength,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_getBound(
    source As IntPtr,   ' BYTE*
    sourceLength As Integer,   ' INT
    boundType As Integer,   ' UColBoundMode
    noOfLevels As UInteger,   ' DWORD
    result As IntPtr,   ' BYTE* in/out
    resultLength As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' source : BYTE*
' sourceLength : INT
' boundType : UColBoundMode
' noOfLevels : DWORD
' result : BYTE* in/out
' resultLength : INT
' status : UErrorCode* in/out
Declare PtrSafe Function ucol_getBound Lib "icuin" ( _
    ByVal source As LongPtr, _
    ByVal sourceLength As Long, _
    ByVal boundType As Long, _
    ByVal noOfLevels As Long, _
    ByVal result As LongPtr, _
    ByVal resultLength 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

ucol_getBound = ctypes.cdll.icuin.ucol_getBound
ucol_getBound.restype = ctypes.c_int
ucol_getBound.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # source : BYTE*
    ctypes.c_int,  # sourceLength : INT
    ctypes.c_int,  # boundType : UColBoundMode
    wintypes.DWORD,  # noOfLevels : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # result : BYTE* in/out
    ctypes.c_int,  # resultLength : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_getBound = Fiddle::Function.new(
  lib['ucol_getBound'],
  [
    Fiddle::TYPE_VOIDP,  # source : BYTE*
    Fiddle::TYPE_INT,  # sourceLength : INT
    Fiddle::TYPE_INT,  # boundType : UColBoundMode
    -Fiddle::TYPE_INT,  # noOfLevels : DWORD
    Fiddle::TYPE_VOIDP,  # result : BYTE* in/out
    Fiddle::TYPE_INT,  # resultLength : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_getBound(
        source: *const u8,  // BYTE*
        sourceLength: i32,  // INT
        boundType: i32,  // UColBoundMode
        noOfLevels: u32,  // DWORD
        result: *mut u8,  // BYTE* in/out
        resultLength: 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 ucol_getBound(IntPtr source, int sourceLength, int boundType, uint noOfLevels, IntPtr result, int resultLength, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucol_getBound' -Namespace Win32 -PassThru
# $api::ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, status)

#uselib "icuin.dll"
#func global ucol_getBound "ucol_getBound" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; ucol_getBound varptr(source), sourceLength, boundType, noOfLevels, varptr(result), resultLength, status   ; 戻り値は stat
; source : BYTE* -> "sptr"
; sourceLength : INT -> "sptr"
; boundType : UColBoundMode -> "sptr"
; noOfLevels : DWORD -> "sptr"
; result : BYTE* in/out -> "sptr"
; resultLength : 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 ucol_getBound "ucol_getBound" var, int, int, int, var, int, int
; res = ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, status)
; source : BYTE* -> "var"
; sourceLength : INT -> "int"
; boundType : UColBoundMode -> "int"
; noOfLevels : DWORD -> "int"
; result : BYTE* in/out -> "var"
; resultLength : INT -> "int"
; 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。

; INT ucol_getBound(BYTE* source, INT sourceLength, UColBoundMode boundType, DWORD noOfLevels, BYTE* result, INT resultLength, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global ucol_getBound "ucol_getBound" var, int, int, int, var, int, int
; res = ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, status)
; source : BYTE* -> "var"
; sourceLength : INT -> "int"
; boundType : UColBoundMode -> "int"
; noOfLevels : DWORD -> "int"
; result : BYTE* in/out -> "var"
; resultLength : INT -> "int"
; 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")
	procucol_getBound = icuin.NewProc("ucol_getBound")
)

// source (BYTE*), sourceLength (INT), boundType (UColBoundMode), noOfLevels (DWORD), result (BYTE* in/out), resultLength (INT), status (UErrorCode* in/out)
r1, _, err := procucol_getBound.Call(
	uintptr(source),
	uintptr(sourceLength),
	uintptr(boundType),
	uintptr(noOfLevels),
	uintptr(result),
	uintptr(resultLength),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucol_getBound(
  source: Pointer;   // BYTE*
  sourceLength: Integer;   // INT
  boundType: Integer;   // UColBoundMode
  noOfLevels: DWORD;   // DWORD
  result: Pointer;   // BYTE* in/out
  resultLength: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_getBound';

result := DllCall("icuin\ucol_getBound"
    , "Ptr", source   ; BYTE*
    , "Int", sourceLength   ; INT
    , "Int", boundType   ; UColBoundMode
    , "UInt", noOfLevels   ; DWORD
    , "Ptr", result   ; BYTE* in/out
    , "Int", resultLength   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, status) = DLL("icuin.dll", "int ucol_getBound(void*, int, int, dword, void*, int, void*)")
# 呼び出し: ucol_getBound(source, sourceLength, boundType, noOfLevels, result, resultLength, status)
# source : BYTE* -> "void*"
# sourceLength : INT -> "int"
# boundType : UColBoundMode -> "int"
# noOfLevels : DWORD -> "dword"
# result : BYTE* in/out -> "void*"
# resultLength : 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。