SQLDriverConnectA

関数

接続文字列を用いてデータソースへ接続する。

DLLODBC32.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

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

SHORT SQLDriverConnectA(
    void* hdbc,
    INT_PTR hwnd,
    BYTE* szConnStrIn,
    SHORT cbConnStrIn,
    BYTE* szConnStrOut,   // optional
    SHORT cbConnStrOutMax,
    SHORT* pcbConnStrOut,   // optional
    WORD fDriverCompletion
);

パラメーター

名前	型	方向	説明
hdbc	void*	inout	ODBCの接続ハンドル。接続を確立する対象。
hwnd	INT_PTR	in	ダイアログ表示用の親ウィンドウハンドル。不要なら0(NULL)を指定する。
szConnStrIn	BYTE*	in	入力接続文字列(key=value;...形式)。
cbConnStrIn	SHORT	in	szConnStrInの文字数。SQL_NTSでNUL終端とみなす。
szConnStrOut	BYTE*	outoptional	完成した接続文字列を受け取るバッファ。出力用。
cbConnStrOutMax	SHORT	in	szConnStrOutバッファのバイト長。
pcbConnStrOut	SHORT*	outoptional	実際に返された接続文字列のバイト長を受け取るポインタ。
fDriverCompletion	WORD	in	ダイアログ表示方法。SQL_DRIVER_PROMPT/COMPLETE/NOPROMPT等。

戻り値の型: SHORT

各言語での呼び出し定義

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

SHORT SQLDriverConnectA(
    void* hdbc,
    INT_PTR hwnd,
    BYTE* szConnStrIn,
    SHORT cbConnStrIn,
    BYTE* szConnStrOut,   // optional
    SHORT cbConnStrOutMax,
    SHORT* pcbConnStrOut,   // optional
    WORD fDriverCompletion
);

[DllImport("ODBC32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern short SQLDriverConnectA(
    IntPtr hdbc,   // void* in/out
    IntPtr hwnd,   // INT_PTR
    IntPtr szConnStrIn,   // BYTE*
    short cbConnStrIn,   // SHORT
    IntPtr szConnStrOut,   // BYTE* optional, out
    short cbConnStrOutMax,   // SHORT
    IntPtr pcbConnStrOut,   // SHORT* optional, out
    ushort fDriverCompletion   // WORD
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLDriverConnectA(
    hdbc As IntPtr,   ' void* in/out
    hwnd As IntPtr,   ' INT_PTR
    szConnStrIn As IntPtr,   ' BYTE*
    cbConnStrIn As Short,   ' SHORT
    szConnStrOut As IntPtr,   ' BYTE* optional, out
    cbConnStrOutMax As Short,   ' SHORT
    pcbConnStrOut As IntPtr,   ' SHORT* optional, out
    fDriverCompletion As UShort   ' WORD
) As Short
End Function

' hdbc : void* in/out
' hwnd : INT_PTR
' szConnStrIn : BYTE*
' cbConnStrIn : SHORT
' szConnStrOut : BYTE* optional, out
' cbConnStrOutMax : SHORT
' pcbConnStrOut : SHORT* optional, out
' fDriverCompletion : WORD
Declare PtrSafe Function SQLDriverConnectA Lib "odbc32" ( _
    ByVal hdbc As LongPtr, _
    ByVal hwnd As LongPtr, _
    ByVal szConnStrIn As LongPtr, _
    ByVal cbConnStrIn As Integer, _
    ByVal szConnStrOut As LongPtr, _
    ByVal cbConnStrOutMax As Integer, _
    ByVal pcbConnStrOut As LongPtr, _
    ByVal fDriverCompletion As Integer) As Integer
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SQLDriverConnectA = ctypes.windll.odbc32.SQLDriverConnectA
SQLDriverConnectA.restype = ctypes.c_short
SQLDriverConnectA.argtypes = [
    ctypes.POINTER(None),  # hdbc : void* in/out
    ctypes.c_ssize_t,  # hwnd : INT_PTR
    ctypes.POINTER(ctypes.c_ubyte),  # szConnStrIn : BYTE*
    ctypes.c_short,  # cbConnStrIn : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # szConnStrOut : BYTE* optional, out
    ctypes.c_short,  # cbConnStrOutMax : SHORT
    ctypes.POINTER(ctypes.c_short),  # pcbConnStrOut : SHORT* optional, out
    ctypes.c_ushort,  # fDriverCompletion : WORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLDriverConnectA = Fiddle::Function.new(
  lib['SQLDriverConnectA'],
  [
    Fiddle::TYPE_VOIDP,  # hdbc : void* in/out
    Fiddle::TYPE_INTPTR_T,  # hwnd : INT_PTR
    Fiddle::TYPE_VOIDP,  # szConnStrIn : BYTE*
    Fiddle::TYPE_SHORT,  # cbConnStrIn : SHORT
    Fiddle::TYPE_VOIDP,  # szConnStrOut : BYTE* optional, out
    Fiddle::TYPE_SHORT,  # cbConnStrOutMax : SHORT
    Fiddle::TYPE_VOIDP,  # pcbConnStrOut : SHORT* optional, out
    -Fiddle::TYPE_SHORT,  # fDriverCompletion : WORD
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLDriverConnectA(
        hdbc: *mut (),  // void* in/out
        hwnd: isize,  // INT_PTR
        szConnStrIn: *mut u8,  // BYTE*
        cbConnStrIn: i16,  // SHORT
        szConnStrOut: *mut u8,  // BYTE* optional, out
        cbConnStrOutMax: i16,  // SHORT
        pcbConnStrOut: *mut i16,  // SHORT* optional, out
        fDriverCompletion: u16  // WORD
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLDriverConnectA(IntPtr hdbc, IntPtr hwnd, IntPtr szConnStrIn, short cbConnStrIn, IntPtr szConnStrOut, short cbConnStrOutMax, IntPtr pcbConnStrOut, ushort fDriverCompletion);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLDriverConnectA' -Namespace Win32 -PassThru
# $api::SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)

#uselib "ODBC32.dll"
#func global SQLDriverConnectA "SQLDriverConnectA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SQLDriverConnectA hdbc, hwnd, varptr(szConnStrIn), cbConnStrIn, varptr(szConnStrOut), cbConnStrOutMax, varptr(pcbConnStrOut), fDriverCompletion   ; 戻り値は stat
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "sptr"
; cbConnStrIn : SHORT -> "sptr"
; szConnStrOut : BYTE* optional, out -> "sptr"
; cbConnStrOutMax : SHORT -> "sptr"
; pcbConnStrOut : SHORT* optional, out -> "sptr"
; fDriverCompletion : WORD -> "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。

出力引数:

#uselib "ODBC32.dll"
#cfunc global SQLDriverConnectA "SQLDriverConnectA" sptr, sptr, var, int, var, int, var, int
; res = SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "var"
; cbConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "var"
; cbConnStrOutMax : SHORT -> "int"
; pcbConnStrOut : SHORT* optional, out -> "var"
; fDriverCompletion : WORD -> "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。#uselib "ODBC32.dll"
#cfunc global SQLDriverConnectA "SQLDriverConnectA" sptr, sptr, sptr, int, sptr, int, sptr, int
; res = SQLDriverConnectA(hdbc, hwnd, varptr(szConnStrIn), cbConnStrIn, varptr(szConnStrOut), cbConnStrOutMax, varptr(pcbConnStrOut), fDriverCompletion)
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "sptr"
; cbConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "sptr"
; cbConnStrOutMax : SHORT -> "int"
; pcbConnStrOut : SHORT* optional, out -> "sptr"
; fDriverCompletion : WORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; SHORT SQLDriverConnectA(void* hdbc, INT_PTR hwnd, BYTE* szConnStrIn, SHORT cbConnStrIn, BYTE* szConnStrOut, SHORT cbConnStrOutMax, SHORT* pcbConnStrOut, WORD fDriverCompletion)
#uselib "ODBC32.dll"
#cfunc global SQLDriverConnectA "SQLDriverConnectA" intptr, intptr, var, int, var, int, var, int
; res = SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
; hdbc : void* in/out -> "intptr"
; hwnd : INT_PTR -> "intptr"
; szConnStrIn : BYTE* -> "var"
; cbConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "var"
; cbConnStrOutMax : SHORT -> "int"
; pcbConnStrOut : SHORT* optional, out -> "var"
; fDriverCompletion : WORD -> "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。; SHORT SQLDriverConnectA(void* hdbc, INT_PTR hwnd, BYTE* szConnStrIn, SHORT cbConnStrIn, BYTE* szConnStrOut, SHORT cbConnStrOutMax, SHORT* pcbConnStrOut, WORD fDriverCompletion)
#uselib "ODBC32.dll"
#cfunc global SQLDriverConnectA "SQLDriverConnectA" intptr, intptr, intptr, int, intptr, int, intptr, int
; res = SQLDriverConnectA(hdbc, hwnd, varptr(szConnStrIn), cbConnStrIn, varptr(szConnStrOut), cbConnStrOutMax, varptr(pcbConnStrOut), fDriverCompletion)
; hdbc : void* in/out -> "intptr"
; hwnd : INT_PTR -> "intptr"
; szConnStrIn : BYTE* -> "intptr"
; cbConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "intptr"
; cbConnStrOutMax : SHORT -> "int"
; pcbConnStrOut : SHORT* optional, out -> "intptr"
; fDriverCompletion : WORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLDriverConnectA = odbc32.NewProc("SQLDriverConnectA")
)

// hdbc (void* in/out), hwnd (INT_PTR), szConnStrIn (BYTE*), cbConnStrIn (SHORT), szConnStrOut (BYTE* optional, out), cbConnStrOutMax (SHORT), pcbConnStrOut (SHORT* optional, out), fDriverCompletion (WORD)
r1, _, err := procSQLDriverConnectA.Call(
	uintptr(hdbc),
	uintptr(hwnd),
	uintptr(szConnStrIn),
	uintptr(cbConnStrIn),
	uintptr(szConnStrOut),
	uintptr(cbConnStrOutMax),
	uintptr(pcbConnStrOut),
	uintptr(fDriverCompletion),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLDriverConnectA(
  hdbc: Pointer;   // void* in/out
  hwnd: NativeInt;   // INT_PTR
  szConnStrIn: Pointer;   // BYTE*
  cbConnStrIn: Smallint;   // SHORT
  szConnStrOut: Pointer;   // BYTE* optional, out
  cbConnStrOutMax: Smallint;   // SHORT
  pcbConnStrOut: Pointer;   // SHORT* optional, out
  fDriverCompletion: Word   // WORD
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLDriverConnectA';

result := DllCall("ODBC32\SQLDriverConnectA"
    , "Ptr", hdbc   ; void* in/out
    , "Ptr", hwnd   ; INT_PTR
    , "Ptr", szConnStrIn   ; BYTE*
    , "Short", cbConnStrIn   ; SHORT
    , "Ptr", szConnStrOut   ; BYTE* optional, out
    , "Short", cbConnStrOutMax   ; SHORT
    , "Ptr", pcbConnStrOut   ; SHORT* optional, out
    , "UShort", fDriverCompletion   ; WORD
    , "Short")   ; return: SHORT

●SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion) = DLL("ODBC32.dll", "int SQLDriverConnectA(void*, int, void*, int, void*, int, void*, int)")
# 呼び出し: SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
# hdbc : void* in/out -> "void*"
# hwnd : INT_PTR -> "int"
# szConnStrIn : BYTE* -> "void*"
# cbConnStrIn : SHORT -> "int"
# szConnStrOut : BYTE* optional, out -> "void*"
# cbConnStrOutMax : SHORT -> "int"
# pcbConnStrOut : SHORT* optional, out -> "void*"
# fDriverCompletion : WORD -> "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)。

const std = @import("std");

extern "odbc32" fn SQLDriverConnectA(
    hdbc: ?*anyopaque, // void* in/out
    hwnd: isize, // INT_PTR
    szConnStrIn: [*c]u8, // BYTE*
    cbConnStrIn: i16, // SHORT
    szConnStrOut: [*c]u8, // BYTE* optional, out
    cbConnStrOutMax: i16, // SHORT
    pcbConnStrOut: [*c]i16, // SHORT* optional, out
    fDriverCompletion: u16 // WORD
) callconv(std.os.windows.WINAPI) i16;

proc SQLDriverConnectA(
    hdbc: pointer,  # void* in/out
    hwnd: int,  # INT_PTR
    szConnStrIn: ptr uint8,  # BYTE*
    cbConnStrIn: int16,  # SHORT
    szConnStrOut: ptr uint8,  # BYTE* optional, out
    cbConnStrOutMax: int16,  # SHORT
    pcbConnStrOut: ptr int16,  # SHORT* optional, out
    fDriverCompletion: uint16  # WORD
): int16 {.importc: "SQLDriverConnectA", stdcall, dynlib: "ODBC32.dll".}

pragma(lib, "odbc32");
extern(Windows)
short SQLDriverConnectA(
    void* hdbc,   // void* in/out
    ptrdiff_t hwnd,   // INT_PTR
    ubyte* szConnStrIn,   // BYTE*
    short cbConnStrIn,   // SHORT
    ubyte* szConnStrOut,   // BYTE* optional, out
    short cbConnStrOutMax,   // SHORT
    short* pcbConnStrOut,   // SHORT* optional, out
    ushort fDriverCompletion   // WORD
);

ccall((:SQLDriverConnectA, "ODBC32.dll"), stdcall, Int16,
      (Ptr{Cvoid}, Int, Ptr{UInt8}, Int16, Ptr{UInt8}, Int16, Ptr{Int16}, UInt16),
      hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
# hdbc : void* in/out -> Ptr{Cvoid}
# hwnd : INT_PTR -> Int
# szConnStrIn : BYTE* -> Ptr{UInt8}
# cbConnStrIn : SHORT -> Int16
# szConnStrOut : BYTE* optional, out -> Ptr{UInt8}
# cbConnStrOutMax : SHORT -> Int16
# pcbConnStrOut : SHORT* optional, out -> Ptr{Int16}
# fDriverCompletion : WORD -> UInt16
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int16_t SQLDriverConnectA(
    void* hdbc,
    intptr_t hwnd,
    uint8_t* szConnStrIn,
    int16_t cbConnStrIn,
    uint8_t* szConnStrOut,
    int16_t cbConnStrOutMax,
    int16_t* pcbConnStrOut,
    uint16_t fDriverCompletion);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
-- hdbc : void* in/out
-- hwnd : INT_PTR
-- szConnStrIn : BYTE*
-- cbConnStrIn : SHORT
-- szConnStrOut : BYTE* optional, out
-- cbConnStrOutMax : SHORT
-- pcbConnStrOut : SHORT* optional, out
-- fDriverCompletion : WORD
-- 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 SQLDriverConnectA = lib.func('__stdcall', 'SQLDriverConnectA', 'int16_t', ['void *', 'intptr_t', 'uint8_t *', 'int16_t', 'uint8_t *', 'int16_t', 'int16_t *', 'uint16_t']);
// SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
// hdbc : void* in/out -> 'void *'
// hwnd : INT_PTR -> 'intptr_t'
// szConnStrIn : BYTE* -> 'uint8_t *'
// cbConnStrIn : SHORT -> 'int16_t'
// szConnStrOut : BYTE* optional, out -> 'uint8_t *'
// cbConnStrOutMax : SHORT -> 'int16_t'
// pcbConnStrOut : SHORT* optional, out -> 'int16_t *'
// fDriverCompletion : WORD -> 'uint16_t'
// 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", {
  SQLDriverConnectA: { parameters: ["pointer", "isize", "pointer", "i16", "pointer", "i16", "pointer", "u16"], result: "i16" },
});
// lib.symbols.SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion)
// hdbc : void* in/out -> "pointer"
// hwnd : INT_PTR -> "isize"
// szConnStrIn : BYTE* -> "pointer"
// cbConnStrIn : SHORT -> "i16"
// szConnStrOut : BYTE* optional, out -> "pointer"
// cbConnStrOutMax : SHORT -> "i16"
// pcbConnStrOut : SHORT* optional, out -> "pointer"
// fDriverCompletion : WORD -> "u16"
// 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 SQLDriverConnectA(
    void* hdbc,
    intptr_t hwnd,
    uint8_t* szConnStrIn,
    int16_t cbConnStrIn,
    uint8_t* szConnStrOut,
    int16_t cbConnStrOutMax,
    int16_t* pcbConnStrOut,
    uint16_t fDriverCompletion);
C, "ODBC32.dll");
// $ffi->SQLDriverConnectA(hdbc, hwnd, szConnStrIn, cbConnStrIn, szConnStrOut, cbConnStrOutMax, pcbConnStrOut, fDriverCompletion);
// hdbc : void* in/out
// hwnd : INT_PTR
// szConnStrIn : BYTE*
// cbConnStrIn : SHORT
// szConnStrOut : BYTE* optional, out
// cbConnStrOutMax : SHORT
// pcbConnStrOut : SHORT* optional, out
// fDriverCompletion : WORD
// 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 SQLDriverConnectA(
        Pointer hdbc,   // void* in/out
        long hwnd,   // INT_PTR
        byte[] szConnStrIn,   // BYTE*
        short cbConnStrIn,   // SHORT
        byte[] szConnStrOut,   // BYTE* optional, out
        short cbConnStrOutMax,   // SHORT
        ShortByReference pcbConnStrOut,   // SHORT* optional, out
        short fDriverCompletion   // WORD
    );
}

@[Link("odbc32")]
lib LibODBC32
  fun SQLDriverConnectA = SQLDriverConnectA(
    hdbc : Void*,   # void* in/out
    hwnd : LibC::SSizeT,   # INT_PTR
    szConnStrIn : UInt8*,   # BYTE*
    cbConnStrIn : Int16,   # SHORT
    szConnStrOut : UInt8*,   # BYTE* optional, out
    cbConnStrOutMax : Int16,   # SHORT
    pcbConnStrOut : Int16*,   # SHORT* optional, out
    fDriverCompletion : UInt16   # WORD
  ) : 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 SQLDriverConnectANative = Int16 Function(Pointer<Void>, IntPtr, Pointer<Uint8>, Int16, Pointer<Uint8>, Int16, Pointer<Int16>, Uint16);
typedef SQLDriverConnectADart = int Function(Pointer<Void>, int, Pointer<Uint8>, int, Pointer<Uint8>, int, Pointer<Int16>, int);
final SQLDriverConnectA = DynamicLibrary.open('ODBC32.dll')
    .lookupFunction<SQLDriverConnectANative, SQLDriverConnectADart>('SQLDriverConnectA');
// hdbc : void* in/out -> Pointer<Void>
// hwnd : INT_PTR -> IntPtr
// szConnStrIn : BYTE* -> Pointer<Uint8>
// cbConnStrIn : SHORT -> Int16
// szConnStrOut : BYTE* optional, out -> Pointer<Uint8>
// cbConnStrOutMax : SHORT -> Int16
// pcbConnStrOut : SHORT* optional, out -> Pointer<Int16>
// fDriverCompletion : WORD -> Uint16
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLDriverConnectA(
  hdbc: Pointer;   // void* in/out
  hwnd: NativeInt;   // INT_PTR
  szConnStrIn: Pointer;   // BYTE*
  cbConnStrIn: Smallint;   // SHORT
  szConnStrOut: Pointer;   // BYTE* optional, out
  cbConnStrOutMax: Smallint;   // SHORT
  pcbConnStrOut: Pointer;   // SHORT* optional, out
  fDriverCompletion: Word   // WORD
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLDriverConnectA';

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

foreign import stdcall safe "SQLDriverConnectA"
  c_SQLDriverConnectA :: Ptr () -> CIntPtr -> Ptr Word8 -> Int16 -> Ptr Word8 -> Int16 -> Ptr Int16 -> Word16 -> IO Int16
-- hdbc : void* in/out -> Ptr ()
-- hwnd : INT_PTR -> CIntPtr
-- szConnStrIn : BYTE* -> Ptr Word8
-- cbConnStrIn : SHORT -> Int16
-- szConnStrOut : BYTE* optional, out -> Ptr Word8
-- cbConnStrOutMax : SHORT -> Int16
-- pcbConnStrOut : SHORT* optional, out -> Ptr Int16
-- fDriverCompletion : WORD -> Word16
-- 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 sqldriverconnecta =
  foreign "SQLDriverConnectA"
    ((ptr void) @-> intptr_t @-> (ptr uint8_t) @-> int16_t @-> (ptr uint8_t) @-> int16_t @-> (ptr int16_t) @-> uint16_t @-> returning int16_t)
(* hdbc : void* in/out -> (ptr void) *)
(* hwnd : INT_PTR -> intptr_t *)
(* szConnStrIn : BYTE* -> (ptr uint8_t) *)
(* cbConnStrIn : SHORT -> int16_t *)
(* szConnStrOut : BYTE* optional, out -> (ptr uint8_t) *)
(* cbConnStrOutMax : SHORT -> int16_t *)
(* pcbConnStrOut : SHORT* optional, out -> (ptr int16_t) *)
(* fDriverCompletion : WORD -> 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 odbc32 (t "ODBC32.dll"))
(cffi:use-foreign-library odbc32)

(cffi:defcfun ("SQLDriverConnectA" sqldriver-connect-a :convention :stdcall) :int16
  (hdbc :pointer)   ; void* in/out
  (hwnd :int64)   ; INT_PTR
  (sz-conn-str-in :pointer)   ; BYTE*
  (cb-conn-str-in :int16)   ; SHORT
  (sz-conn-str-out :pointer)   ; BYTE* optional, out
  (cb-conn-str-out-max :int16)   ; SHORT
  (pcb-conn-str-out :pointer)   ; SHORT* optional, out
  (f-driver-completion :uint16))   ; WORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SQLDriverConnectA = Win32::API::More->new('ODBC32',
    'short SQLDriverConnectA(LPVOID hdbc, LPARAM hwnd, LPVOID szConnStrIn, short cbConnStrIn, LPVOID szConnStrOut, short cbConnStrOutMax, LPVOID pcbConnStrOut, WORD fDriverCompletion)');
# my $ret = $SQLDriverConnectA->Call($hdbc, $hwnd, $szConnStrIn, $cbConnStrIn, $szConnStrOut, $cbConnStrOutMax, $pcbConnStrOut, $fDriverCompletion);
# hdbc : void* in/out -> LPVOID
# hwnd : INT_PTR -> LPARAM
# szConnStrIn : BYTE* -> LPVOID
# cbConnStrIn : SHORT -> short
# szConnStrOut : BYTE* optional, out -> LPVOID
# cbConnStrOutMax : SHORT -> short
# pcbConnStrOut : SHORT* optional, out -> LPVOID
# fDriverCompletion : WORD -> WORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

SQLDriverConnectA

シグネチャ

パラメーター

各言語での呼び出し定義

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