SQLAllocHandle

// ODBC32.dll
#include <windows.h>

SHORT SQLAllocHandle(
    SHORT HandleType,
    void* InputHandle,
    void** OutputHandle
);

<DllImport("ODBC32.dll", ExactSpelling:=True)>
Public Shared Function SQLAllocHandle(
    HandleType As Short,   ' SHORT
    InputHandle As IntPtr,   ' void* in/out
    OutputHandle As IntPtr   ' void** out
) As Short
End Function

' HandleType : SHORT
' InputHandle : void* in/out
' OutputHandle : void** out
Declare PtrSafe Function SQLAllocHandle Lib "odbc32" ( _
    ByVal HandleType As Integer, _
    ByVal InputHandle As LongPtr, _
    ByVal OutputHandle 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

SQLAllocHandle = ctypes.windll.odbc32.SQLAllocHandle
SQLAllocHandle.restype = ctypes.c_short
SQLAllocHandle.argtypes = [
    ctypes.c_short,  # HandleType : SHORT
    ctypes.POINTER(None),  # InputHandle : void* in/out
    ctypes.c_void_p,  # OutputHandle : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLAllocHandle = Fiddle::Function.new(
  lib['SQLAllocHandle'],
  [
    Fiddle::TYPE_SHORT,  # HandleType : SHORT
    Fiddle::TYPE_VOIDP,  # InputHandle : void* in/out
    Fiddle::TYPE_VOIDP,  # OutputHandle : void** out
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLAllocHandle(
        HandleType: i16,  // SHORT
        InputHandle: *mut (),  // void* in/out
        OutputHandle: *mut *mut ()  // void** out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll")]
public static extern short SQLAllocHandle(short HandleType, IntPtr InputHandle, IntPtr OutputHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLAllocHandle' -Namespace Win32 -PassThru
# $api::SQLAllocHandle(HandleType, InputHandle, OutputHandle)

#uselib "ODBC32.dll"
#func global SQLAllocHandle "SQLAllocHandle" sptr, sptr, sptr
; SQLAllocHandle HandleType, InputHandle, OutputHandle   ; 戻り値は stat
; HandleType : SHORT -> "sptr"
; InputHandle : void* in/out -> "sptr"
; OutputHandle : void** 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 SQLAllocHandle "SQLAllocHandle" int, sptr, sptr
; res = SQLAllocHandle(HandleType, InputHandle, OutputHandle)
; HandleType : SHORT -> "int"
; InputHandle : void* in/out -> "sptr"
; OutputHandle : void** out -> "sptr"

; SHORT SQLAllocHandle(SHORT HandleType, void* InputHandle, void** OutputHandle)
#uselib "ODBC32.dll"
#cfunc global SQLAllocHandle "SQLAllocHandle" int, intptr, intptr
; res = SQLAllocHandle(HandleType, InputHandle, OutputHandle)
; HandleType : SHORT -> "int"
; InputHandle : void* in/out -> "intptr"
; OutputHandle : void** out -> "intptr"

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLAllocHandle = odbc32.NewProc("SQLAllocHandle")
)

// HandleType (SHORT), InputHandle (void* in/out), OutputHandle (void** out)
r1, _, err := procSQLAllocHandle.Call(
	uintptr(HandleType),
	uintptr(InputHandle),
	uintptr(OutputHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLAllocHandle(
  HandleType: Smallint;   // SHORT
  InputHandle: Pointer;   // void* in/out
  OutputHandle: Pointer   // void** out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLAllocHandle';

result := DllCall("ODBC32\SQLAllocHandle"
    , "Short", HandleType   ; SHORT
    , "Ptr", InputHandle   ; void* in/out
    , "Ptr", OutputHandle   ; void** out
    , "Short")   ; return: SHORT

●SQLAllocHandle(HandleType, InputHandle, OutputHandle) = DLL("ODBC32.dll", "int SQLAllocHandle(int, void*, void*)")
# 呼び出し: SQLAllocHandle(HandleType, InputHandle, OutputHandle)
# HandleType : SHORT -> "int"
# InputHandle : void* in/out -> "void*"
# OutputHandle : void** 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 SQLAllocHandle(
    HandleType: i16, // SHORT
    InputHandle: ?*anyopaque, // void* in/out
    OutputHandle: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i16;

proc SQLAllocHandle(
    HandleType: int16,  # SHORT
    InputHandle: pointer,  # void* in/out
    OutputHandle: pointer  # void** out
): int16 {.importc: "SQLAllocHandle", stdcall, dynlib: "ODBC32.dll".}

pragma(lib, "odbc32");
extern(Windows)
short SQLAllocHandle(
    short HandleType,   // SHORT
    void* InputHandle,   // void* in/out
    void** OutputHandle   // void** out
);

ccall((:SQLAllocHandle, "ODBC32.dll"), stdcall, Int16,
      (Int16, Ptr{Cvoid}, Ptr{Cvoid}),
      HandleType, InputHandle, OutputHandle)
# HandleType : SHORT -> Int16
# InputHandle : void* in/out -> Ptr{Cvoid}
# OutputHandle : void** 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 SQLAllocHandle(
    int16_t HandleType,
    void* InputHandle,
    void** OutputHandle);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLAllocHandle(HandleType, InputHandle, OutputHandle)
-- HandleType : SHORT
-- InputHandle : void* in/out
-- OutputHandle : void** 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 SQLAllocHandle = lib.func('__stdcall', 'SQLAllocHandle', 'int16_t', ['int16_t', 'void *', 'void *']);
// SQLAllocHandle(HandleType, InputHandle, OutputHandle)
// HandleType : SHORT -> 'int16_t'
// InputHandle : void* in/out -> 'void *'
// OutputHandle : void** 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", {
  SQLAllocHandle: { parameters: ["i16", "pointer", "pointer"], result: "i16" },
});
// lib.symbols.SQLAllocHandle(HandleType, InputHandle, OutputHandle)
// HandleType : SHORT -> "i16"
// InputHandle : void* in/out -> "pointer"
// OutputHandle : void** out -> "pointer"
// 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
int16_t SQLAllocHandle(
    int16_t HandleType,
    void* InputHandle,
    void** OutputHandle);
C, "ODBC32.dll");
// $ffi->SQLAllocHandle(HandleType, InputHandle, OutputHandle);
// HandleType : SHORT
// InputHandle : void* in/out
// OutputHandle : void** 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);
    short SQLAllocHandle(
        short HandleType,   // SHORT
        Pointer InputHandle,   // void* in/out
        Pointer OutputHandle   // void** out
    );
}

@[Link("odbc32")]
lib LibODBC32
  fun SQLAllocHandle = SQLAllocHandle(
    HandleType : Int16,   # SHORT
    InputHandle : Void*,   # void* in/out
    OutputHandle : Void**   # void** 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 SQLAllocHandleNative = Int16 Function(Int16, Pointer<Void>, Pointer<Void>);
typedef SQLAllocHandleDart = int Function(int, Pointer<Void>, Pointer<Void>);
final SQLAllocHandle = DynamicLibrary.open('ODBC32.dll')
    .lookupFunction<SQLAllocHandleNative, SQLAllocHandleDart>('SQLAllocHandle');
// HandleType : SHORT -> Int16
// InputHandle : void* in/out -> Pointer<Void>
// OutputHandle : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLAllocHandle(
  HandleType: Smallint;   // SHORT
  InputHandle: Pointer;   // void* in/out
  OutputHandle: Pointer   // void** out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLAllocHandle';

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

foreign import stdcall safe "SQLAllocHandle"
  c_SQLAllocHandle :: Int16 -> Ptr () -> Ptr () -> IO Int16
-- HandleType : SHORT -> Int16
-- InputHandle : void* in/out -> Ptr ()
-- OutputHandle : void** 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 sqlallochandle =
  foreign "SQLAllocHandle"
    (int16_t @-> (ptr void) @-> (ptr void) @-> returning int16_t)
(* HandleType : SHORT -> int16_t *)
(* InputHandle : void* in/out -> (ptr void) *)
(* OutputHandle : void** 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 ("SQLAllocHandle" sqlalloc-handle :convention :stdcall) :int16
  (handle-type :int16)   ; SHORT
  (input-handle :pointer)   ; void* in/out
  (output-handle :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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