SQLInitEnumServers

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

HANDLE SQLInitEnumServers(
    LPWSTR pwchServerName,
    LPWSTR pwchInstanceName
);

<DllImport("odbcbcp.dll", ExactSpelling:=True)>
Public Shared Function SQLInitEnumServers(
    <MarshalAs(UnmanagedType.LPWStr)> pwchServerName As String,   ' LPWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pwchInstanceName As String   ' LPWSTR
) As IntPtr
End Function

' pwchServerName : LPWSTR
' pwchInstanceName : LPWSTR
Declare PtrSafe Function SQLInitEnumServers Lib "odbcbcp" ( _
    ByVal pwchServerName As LongPtr, _
    ByVal pwchInstanceName As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SQLInitEnumServers = ctypes.windll.odbcbcp.SQLInitEnumServers
SQLInitEnumServers.restype = ctypes.c_void_p
SQLInitEnumServers.argtypes = [
    wintypes.LPCWSTR,  # pwchServerName : LPWSTR
    wintypes.LPCWSTR,  # pwchInstanceName : LPWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('odbcbcp.dll')
SQLInitEnumServers = Fiddle::Function.new(
  lib['SQLInitEnumServers'],
  [
    Fiddle::TYPE_VOIDP,  # pwchServerName : LPWSTR
    Fiddle::TYPE_VOIDP,  # pwchInstanceName : LPWSTR
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "odbcbcp")]
extern "system" {
    fn SQLInitEnumServers(
        pwchServerName: *mut u16,  // LPWSTR
        pwchInstanceName: *mut u16  // LPWSTR
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("odbcbcp.dll")]
public static extern IntPtr SQLInitEnumServers([MarshalAs(UnmanagedType.LPWStr)] string pwchServerName, [MarshalAs(UnmanagedType.LPWStr)] string pwchInstanceName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'odbcbcp_SQLInitEnumServers' -Namespace Win32 -PassThru
# $api::SQLInitEnumServers(pwchServerName, pwchInstanceName)

#uselib "odbcbcp.dll"
#func global SQLInitEnumServers "SQLInitEnumServers" sptr, sptr
; SQLInitEnumServers pwchServerName, pwchInstanceName   ; 戻り値は stat
; pwchServerName : LPWSTR -> "sptr"
; pwchInstanceName : LPWSTR -> "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 "odbcbcp.dll"
#cfunc global SQLInitEnumServers "SQLInitEnumServers" wstr, wstr
; res = SQLInitEnumServers(pwchServerName, pwchInstanceName)
; pwchServerName : LPWSTR -> "wstr"
; pwchInstanceName : LPWSTR -> "wstr"

; HANDLE SQLInitEnumServers(LPWSTR pwchServerName, LPWSTR pwchInstanceName)
#uselib "odbcbcp.dll"
#cfunc global SQLInitEnumServers "SQLInitEnumServers" wstr, wstr
; res = SQLInitEnumServers(pwchServerName, pwchInstanceName)
; pwchServerName : LPWSTR -> "wstr"
; pwchInstanceName : LPWSTR -> "wstr"

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

var (
	odbcbcp = windows.NewLazySystemDLL("odbcbcp.dll")
	procSQLInitEnumServers = odbcbcp.NewProc("SQLInitEnumServers")
)

// pwchServerName (LPWSTR), pwchInstanceName (LPWSTR)
r1, _, err := procSQLInitEnumServers.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwchServerName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwchInstanceName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function SQLInitEnumServers(
  pwchServerName: PWideChar;   // LPWSTR
  pwchInstanceName: PWideChar   // LPWSTR
): THandle; stdcall;
  external 'odbcbcp.dll' name 'SQLInitEnumServers';

result := DllCall("odbcbcp\SQLInitEnumServers"
    , "WStr", pwchServerName   ; LPWSTR
    , "WStr", pwchInstanceName   ; LPWSTR
    , "Ptr")   ; return: HANDLE

●SQLInitEnumServers(pwchServerName, pwchInstanceName) = DLL("odbcbcp.dll", "void* SQLInitEnumServers(char*, char*)")
# 呼び出し: SQLInitEnumServers(pwchServerName, pwchInstanceName)
# pwchServerName : LPWSTR -> "char*"
# pwchInstanceName : LPWSTR -> "char*"
# 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)。

const std = @import("std");

extern "odbcbcp" fn SQLInitEnumServers(
    pwchServerName: [*c]const u16, // LPWSTR
    pwchInstanceName: [*c]const u16 // LPWSTR
) callconv(std.os.windows.WINAPI) ?*anyopaque;

proc SQLInitEnumServers(
    pwchServerName: WideCString,  # LPWSTR
    pwchInstanceName: WideCString  # LPWSTR
): pointer {.importc: "SQLInitEnumServers", stdcall, dynlib: "odbcbcp.dll".}

pragma(lib, "odbcbcp");
extern(Windows)
void* SQLInitEnumServers(
    const(wchar)* pwchServerName,   // LPWSTR
    const(wchar)* pwchInstanceName   // LPWSTR
);

ccall((:SQLInitEnumServers, "odbcbcp.dll"), stdcall, Ptr{Cvoid},
      (Cwstring, Cwstring),
      pwchServerName, pwchInstanceName)
# pwchServerName : LPWSTR -> Cwstring
# pwchInstanceName : LPWSTR -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void* SQLInitEnumServers(
    const uint16_t* pwchServerName,
    const uint16_t* pwchInstanceName);
]]
local odbcbcp = ffi.load("odbcbcp")
-- odbcbcp.SQLInitEnumServers(pwchServerName, pwchInstanceName)
-- pwchServerName : LPWSTR
-- pwchInstanceName : LPWSTR
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('odbcbcp.dll');
const SQLInitEnumServers = lib.func('__stdcall', 'SQLInitEnumServers', 'void *', ['str16', 'str16']);
// SQLInitEnumServers(pwchServerName, pwchInstanceName)
// pwchServerName : LPWSTR -> 'str16'
// pwchInstanceName : LPWSTR -> 'str16'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("odbcbcp.dll", {
  SQLInitEnumServers: { parameters: ["buffer", "buffer"], result: "pointer" },
});
// lib.symbols.SQLInitEnumServers(pwchServerName, pwchInstanceName)
// pwchServerName : LPWSTR -> "buffer"
// pwchInstanceName : LPWSTR -> "buffer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* SQLInitEnumServers(
    const uint16_t* pwchServerName,
    const uint16_t* pwchInstanceName);
C, "odbcbcp.dll");
// $ffi->SQLInitEnumServers(pwchServerName, pwchInstanceName);
// pwchServerName : LPWSTR
// pwchInstanceName : LPWSTR
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Odbcbcp extends StdCallLibrary {
    Odbcbcp INSTANCE = Native.load("odbcbcp", Odbcbcp.class);
    Pointer SQLInitEnumServers(
        WString pwchServerName,   // LPWSTR
        WString pwchInstanceName   // LPWSTR
    );
}

@[Link("odbcbcp")]
lib Libodbcbcp
  fun SQLInitEnumServers = SQLInitEnumServers(
    pwchServerName : UInt16*,   # LPWSTR
    pwchInstanceName : UInt16*   # LPWSTR
  ) : Void*
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SQLInitEnumServersNative = Pointer<Void> Function(Pointer<Utf16>, Pointer<Utf16>);
typedef SQLInitEnumServersDart = Pointer<Void> Function(Pointer<Utf16>, Pointer<Utf16>);
final SQLInitEnumServers = DynamicLibrary.open('odbcbcp.dll')
    .lookupFunction<SQLInitEnumServersNative, SQLInitEnumServersDart>('SQLInitEnumServers');
// pwchServerName : LPWSTR -> Pointer<Utf16>
// pwchInstanceName : LPWSTR -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLInitEnumServers(
  pwchServerName: PWideChar;   // LPWSTR
  pwchInstanceName: PWideChar   // LPWSTR
): THandle; stdcall;
  external 'odbcbcp.dll' name 'SQLInitEnumServers';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SQLInitEnumServers"
  c_SQLInitEnumServers :: CWString -> CWString -> IO (Ptr ())
-- pwchServerName : LPWSTR -> CWString
-- pwchInstanceName : LPWSTR -> CWString
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let sqlinitenumservers =
  foreign "SQLInitEnumServers"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> returning (ptr void))
(* pwchServerName : LPWSTR -> (ptr uint16_t) *)
(* pwchInstanceName : LPWSTR -> (ptr uint16_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library odbcbcp (t "odbcbcp.dll"))
(cffi:use-foreign-library odbcbcp)

(cffi:defcfun ("SQLInitEnumServers" sqlinit-enum-servers :convention :stdcall) :pointer
  (pwch-server-name (:string :encoding :utf-16le))   ; LPWSTR
  (pwch-instance-name (:string :encoding :utf-16le)))   ; LPWSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SQLInitEnumServers = Win32::API::More->new('odbcbcp',
    'HANDLE SQLInitEnumServers(LPCWSTR pwchServerName, LPCWSTR pwchInstanceName)');
# my $ret = $SQLInitEnumServers->Call($pwchServerName, $pwchInstanceName);
# pwchServerName : LPWSTR -> LPCWSTR
# pwchInstanceName : LPWSTR -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。