bcp_initW

// odbcbcp.dll  (Unicode / -W)
#include <windows.h>

SHORT bcp_initW(
    void* param0,
    LPCWSTR param1,
    LPCWSTR param2,
    LPCWSTR param3,
    INT param4
);

<DllImport("odbcbcp.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function bcp_initW(
    param0 As IntPtr,   ' void* in/out
    <MarshalAs(UnmanagedType.LPWStr)> param1 As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> param2 As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> param3 As String,   ' LPCWSTR
    param4 As Integer   ' INT
) As Short
End Function

' param0 : void* in/out
' param1 : LPCWSTR
' param2 : LPCWSTR
' param3 : LPCWSTR
' param4 : INT
Declare PtrSafe Function bcp_initW Lib "odbcbcp" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr, _
    ByVal param3 As LongPtr, _
    ByVal param4 As Long) As Integer
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

bcp_initW = ctypes.windll.odbcbcp.bcp_initW
bcp_initW.restype = ctypes.c_short
bcp_initW.argtypes = [
    ctypes.POINTER(None),  # param0 : void* in/out
    wintypes.LPCWSTR,  # param1 : LPCWSTR
    wintypes.LPCWSTR,  # param2 : LPCWSTR
    wintypes.LPCWSTR,  # param3 : LPCWSTR
    ctypes.c_int,  # param4 : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('odbcbcp.dll')
bcp_initW = Fiddle::Function.new(
  lib['bcp_initW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : void* in/out
    Fiddle::TYPE_VOIDP,  # param1 : LPCWSTR
    Fiddle::TYPE_VOIDP,  # param2 : LPCWSTR
    Fiddle::TYPE_VOIDP,  # param3 : LPCWSTR
    Fiddle::TYPE_INT,  # param4 : INT
  ],
  Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "odbcbcp")]
extern "system" {
    fn bcp_initW(
        param0: *mut (),  // void* in/out
        param1: *const u16,  // LPCWSTR
        param2: *const u16,  // LPCWSTR
        param3: *const u16,  // LPCWSTR
        param4: i32  // INT
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("odbcbcp.dll", CharSet = CharSet.Unicode)]
public static extern short bcp_initW(IntPtr param0, [MarshalAs(UnmanagedType.LPWStr)] string param1, [MarshalAs(UnmanagedType.LPWStr)] string param2, [MarshalAs(UnmanagedType.LPWStr)] string param3, int param4);
"@
$api = Add-Type -MemberDefinition $sig -Name 'odbcbcp_bcp_initW' -Namespace Win32 -PassThru
# $api::bcp_initW(param0, param1, param2, param3, param4)

#uselib "odbcbcp.dll"
#func global bcp_initW "bcp_initW" wptr, wptr, wptr, wptr, wptr
; bcp_initW param0, param1, param2, param3, param4   ; 戻り値は stat
; param0 : void* in/out -> "wptr"
; param1 : LPCWSTR -> "wptr"
; param2 : LPCWSTR -> "wptr"
; param3 : LPCWSTR -> "wptr"
; param4 : INT -> "wptr"
; ※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 "odbcbcp.dll"
#cfunc global bcp_initW "bcp_initW" sptr, wstr, wstr, wstr, int
; res = bcp_initW(param0, param1, param2, param3, param4)
; param0 : void* in/out -> "sptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPCWSTR -> "wstr"
; param3 : LPCWSTR -> "wstr"
; param4 : INT -> "int"

; SHORT bcp_initW(void* param0, LPCWSTR param1, LPCWSTR param2, LPCWSTR param3, INT param4)
#uselib "odbcbcp.dll"
#cfunc global bcp_initW "bcp_initW" intptr, wstr, wstr, wstr, int
; res = bcp_initW(param0, param1, param2, param3, param4)
; param0 : void* in/out -> "intptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPCWSTR -> "wstr"
; param3 : LPCWSTR -> "wstr"
; param4 : INT -> "int"

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

var (
	odbcbcp = windows.NewLazySystemDLL("odbcbcp.dll")
	procbcp_initW = odbcbcp.NewProc("bcp_initW")
)

// param0 (void* in/out), param1 (LPCWSTR), param2 (LPCWSTR), param3 (LPCWSTR), param4 (INT)
r1, _, err := procbcp_initW.Call(
	uintptr(param0),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param1))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param2))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param3))),
	uintptr(param4),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function bcp_initW(
  param0: Pointer;   // void* in/out
  param1: PWideChar;   // LPCWSTR
  param2: PWideChar;   // LPCWSTR
  param3: PWideChar;   // LPCWSTR
  param4: Integer   // INT
): Smallint; stdcall;
  external 'odbcbcp.dll' name 'bcp_initW';

result := DllCall("odbcbcp\bcp_initW"
    , "Ptr", param0   ; void* in/out
    , "WStr", param1   ; LPCWSTR
    , "WStr", param2   ; LPCWSTR
    , "WStr", param3   ; LPCWSTR
    , "Int", param4   ; INT
    , "Short")   ; return: SHORT

●bcp_initW(param0, param1, param2, param3, param4) = DLL("odbcbcp.dll", "int bcp_initW(void*, char*, char*, char*, int)")
# 呼び出し: bcp_initW(param0, param1, param2, param3, param4)
# param0 : void* in/out -> "void*"
# param1 : LPCWSTR -> "char*"
# param2 : LPCWSTR -> "char*"
# param3 : LPCWSTR -> "char*"
# param4 : INT -> "int"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。