SQLGetConnectOption

// ODBC32.dll  (ANSI / -A)
#include <windows.h>

SHORT SQLGetConnectOption(
    void* ConnectionHandle,
    WORD Option,
    void* Value
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLGetConnectOption(
    ConnectionHandle As IntPtr,   ' void* in/out
    [Option] As UShort,   ' WORD
    Value As IntPtr   ' void* in/out
) As Short
End Function

' ConnectionHandle : void* in/out
' Option : WORD
' Value : void* in/out
Declare PtrSafe Function SQLGetConnectOption Lib "odbc32" ( _
    ByVal ConnectionHandle As LongPtr, _
    ByVal Option As Integer, _
    ByVal Value As LongPtr) As Integer
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SQLGetConnectOption = ctypes.windll.odbc32.SQLGetConnectOption
SQLGetConnectOption.restype = ctypes.c_short
SQLGetConnectOption.argtypes = [
    ctypes.POINTER(None),  # ConnectionHandle : void* in/out
    ctypes.c_ushort,  # Option : WORD
    ctypes.POINTER(None),  # Value : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLGetConnectOption = Fiddle::Function.new(
  lib['SQLGetConnectOption'],
  [
    Fiddle::TYPE_VOIDP,  # ConnectionHandle : void* in/out
    -Fiddle::TYPE_SHORT,  # Option : WORD
    Fiddle::TYPE_VOIDP,  # Value : void* in/out
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLGetConnectOption(
        ConnectionHandle: *mut (),  // void* in/out
        Option: u16,  // WORD
        Value: *mut ()  // void* in/out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLGetConnectOption(IntPtr ConnectionHandle, ushort Option, IntPtr Value);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetConnectOption' -Namespace Win32 -PassThru
# $api::SQLGetConnectOption(ConnectionHandle, Option, Value)

#uselib "ODBC32.dll"
#func global SQLGetConnectOption "SQLGetConnectOption" sptr, sptr, sptr
; SQLGetConnectOption ConnectionHandle, Option, Value   ; 戻り値は stat
; ConnectionHandle : void* in/out -> "sptr"
; Option : WORD -> "sptr"
; Value : void* 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 "ODBC32.dll"
#cfunc global SQLGetConnectOption "SQLGetConnectOption" sptr, int, sptr
; res = SQLGetConnectOption(ConnectionHandle, Option, Value)
; ConnectionHandle : void* in/out -> "sptr"
; Option : WORD -> "int"
; Value : void* in/out -> "sptr"

; SHORT SQLGetConnectOption(void* ConnectionHandle, WORD Option, void* Value)
#uselib "ODBC32.dll"
#cfunc global SQLGetConnectOption "SQLGetConnectOption" intptr, int, intptr
; res = SQLGetConnectOption(ConnectionHandle, Option, Value)
; ConnectionHandle : void* in/out -> "intptr"
; Option : WORD -> "int"
; Value : void* in/out -> "intptr"

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLGetConnectOption = odbc32.NewProc("SQLGetConnectOption")
)

// ConnectionHandle (void* in/out), Option (WORD), Value (void* in/out)
r1, _, err := procSQLGetConnectOption.Call(
	uintptr(ConnectionHandle),
	uintptr(Option),
	uintptr(Value),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLGetConnectOption(
  ConnectionHandle: Pointer;   // void* in/out
  Option: Word;   // WORD
  Value: Pointer   // void* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetConnectOption';

result := DllCall("ODBC32\SQLGetConnectOption"
    , "Ptr", ConnectionHandle   ; void* in/out
    , "UShort", Option   ; WORD
    , "Ptr", Value   ; void* in/out
    , "Short")   ; return: SHORT

●SQLGetConnectOption(ConnectionHandle, Option, Value) = DLL("ODBC32.dll", "int SQLGetConnectOption(void*, int, void*)")
# 呼び出し: SQLGetConnectOption(ConnectionHandle, Option, Value)
# ConnectionHandle : void* in/out -> "void*"
# Option : WORD -> "int"
# Value : void* 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)。

const std = @import("std");

extern "odbc32" fn SQLGetConnectOption(
    ConnectionHandle: ?*anyopaque, // void* in/out
    Option: u16, // WORD
    Value: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) i16;

proc SQLGetConnectOption(
    ConnectionHandle: pointer,  # void* in/out
    Option: uint16,  # WORD
    Value: pointer  # void* in/out
): int16 {.importc: "SQLGetConnectOption", stdcall, dynlib: "ODBC32.dll".}

pragma(lib, "odbc32");
extern(Windows)
short SQLGetConnectOption(
    void* ConnectionHandle,   // void* in/out
    ushort Option,   // WORD
    void* Value   // void* in/out
);

ccall((:SQLGetConnectOption, "ODBC32.dll"), stdcall, Int16,
      (Ptr{Cvoid}, UInt16, Ptr{Cvoid}),
      ConnectionHandle, Option, Value)
# ConnectionHandle : void* in/out -> Ptr{Cvoid}
# Option : WORD -> UInt16
# Value : void* in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int16_t SQLGetConnectOption(
    void* ConnectionHandle,
    uint16_t Option,
    void* Value);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLGetConnectOption(ConnectionHandle, Option, Value)
-- ConnectionHandle : void* in/out
-- Option : WORD
-- Value : void* in/out
-- 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('ODBC32.dll');
const SQLGetConnectOption = lib.func('__stdcall', 'SQLGetConnectOption', 'int16_t', ['void *', 'uint16_t', 'void *']);
// SQLGetConnectOption(ConnectionHandle, Option, Value)
// ConnectionHandle : void* in/out -> 'void *'
// Option : WORD -> 'uint16_t'
// Value : void* in/out -> 'void *'
// 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("ODBC32.dll", {
  SQLGetConnectOption: { parameters: ["pointer", "u16", "pointer"], result: "i16" },
});
// lib.symbols.SQLGetConnectOption(ConnectionHandle, Option, Value)
// ConnectionHandle : void* in/out -> "pointer"
// Option : WORD -> "u16"
// Value : void* in/out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int16_t SQLGetConnectOption(
    void* ConnectionHandle,
    uint16_t Option,
    void* Value);
C, "ODBC32.dll");
// $ffi->SQLGetConnectOption(ConnectionHandle, Option, Value);
// ConnectionHandle : void* in/out
// Option : WORD
// Value : void* in/out
// 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 Odbc32 extends StdCallLibrary {
    Odbc32 INSTANCE = Native.load("odbc32", Odbc32.class, W32APIOptions.ASCII_OPTIONS);
    short SQLGetConnectOption(
        Pointer ConnectionHandle,   // void* in/out
        short Option,   // WORD
        Pointer Value   // void* in/out
    );
}

@[Link("odbc32")]
lib LibODBC32
  fun SQLGetConnectOption = SQLGetConnectOption(
    ConnectionHandle : Void*,   # void* in/out
    Option : UInt16,   # WORD
    Value : Void*   # void* in/out
  ) : Int16
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 SQLGetConnectOptionNative = Int16 Function(Pointer<Void>, Uint16, Pointer<Void>);
typedef SQLGetConnectOptionDart = int Function(Pointer<Void>, int, Pointer<Void>);
final SQLGetConnectOption = DynamicLibrary.open('ODBC32.dll')
    .lookupFunction<SQLGetConnectOptionNative, SQLGetConnectOptionDart>('SQLGetConnectOption');
// ConnectionHandle : void* in/out -> Pointer<Void>
// Option : WORD -> Uint16
// Value : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLGetConnectOption(
  ConnectionHandle: Pointer;   // void* in/out
  Option: Word;   // WORD
  Value: Pointer   // void* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetConnectOption';

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

foreign import stdcall safe "SQLGetConnectOption"
  c_SQLGetConnectOption :: Ptr () -> Word16 -> Ptr () -> IO Int16
-- ConnectionHandle : void* in/out -> Ptr ()
-- Option : WORD -> Word16
-- Value : void* in/out -> Ptr ()
-- 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 sqlgetconnectoption =
  foreign "SQLGetConnectOption"
    ((ptr void) @-> uint16_t @-> (ptr void) @-> returning int16_t)
(* ConnectionHandle : void* in/out -> (ptr void) *)
(* Option : WORD -> uint16_t *)
(* Value : void* in/out -> (ptr void) *)
(* 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 odbc32 (t "ODBC32.dll"))
(cffi:use-foreign-library odbc32)

(cffi:defcfun ("SQLGetConnectOption" sqlget-connect-option :convention :stdcall) :int16
  (connection-handle :pointer)   ; void* in/out
  (option :uint16)   ; WORD
  (value :pointer))   ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SQLGetConnectOption = Win32::API::More->new('ODBC32',
    'short SQLGetConnectOption(LPVOID ConnectionHandle, WORD Option, LPVOID Value)');
# my $ret = $SQLGetConnectOption->Call($ConnectionHandle, $Option, $Value);
# ConnectionHandle : void* in/out -> LPVOID
# Option : WORD -> WORD
# Value : void* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。