SQLDriverConnect

関数

接続文字列やダイアログでデータソースに接続する。

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 SQLDriverConnect(
    void* hdbc,
    INT_PTR hwnd,
    BYTE* szConnStrIn,
    SHORT cchConnStrIn,
    BYTE* szConnStrOut,   // optional
    SHORT cchConnStrOutMax,
    SHORT* pcchConnStrOut,   // optional
    WORD fDriverCompletion
);

パラメーター

名前	型	方向	説明
hdbc	void*	inout	接続を確立する接続ハンドル。
hwnd	INT_PTR	in	ダイアログ表示用の親ウィンドウハンドル。表示不要ならNULL。
szConnStrIn	BYTE*	in	入力接続文字列。キーワード=値の組。ANSI文字列。
cchConnStrIn	SHORT	in	szConnStrInの文字数。SQL_NTSでNUL終端を示す。
szConnStrOut	BYTE*	outoptional	完成した接続文字列を受け取るバッファ。ANSI文字列。
cchConnStrOutMax	SHORT	in	szConnStrOutバッファの文字数長。
pcchConnStrOut	SHORT*	outoptional	出力接続文字列の実際の文字数を受け取るポインタ。NULL可。
fDriverCompletion	WORD	in	ダイアログ表示制御。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 SQLDriverConnect(
    void* hdbc,
    INT_PTR hwnd,
    BYTE* szConnStrIn,
    SHORT cchConnStrIn,
    BYTE* szConnStrOut,   // optional
    SHORT cchConnStrOutMax,
    SHORT* pcchConnStrOut,   // optional
    WORD fDriverCompletion
);

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

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

' hdbc : void* in/out
' hwnd : INT_PTR
' szConnStrIn : BYTE*
' cchConnStrIn : SHORT
' szConnStrOut : BYTE* optional, out
' cchConnStrOutMax : SHORT
' pcchConnStrOut : SHORT* optional, out
' fDriverCompletion : WORD
Declare PtrSafe Function SQLDriverConnect Lib "odbc32" ( _
    ByVal hdbc As LongPtr, _
    ByVal hwnd As LongPtr, _
    ByVal szConnStrIn As LongPtr, _
    ByVal cchConnStrIn As Integer, _
    ByVal szConnStrOut As LongPtr, _
    ByVal cchConnStrOutMax As Integer, _
    ByVal pcchConnStrOut 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

SQLDriverConnect = ctypes.windll.odbc32.SQLDriverConnect
SQLDriverConnect.restype = ctypes.c_short
SQLDriverConnect.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,  # cchConnStrIn : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # szConnStrOut : BYTE* optional, out
    ctypes.c_short,  # cchConnStrOutMax : SHORT
    ctypes.POINTER(ctypes.c_short),  # pcchConnStrOut : SHORT* optional, out
    ctypes.c_ushort,  # fDriverCompletion : WORD
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "odbc32")]
extern "system" {
    fn SQLDriverConnect(
        hdbc: *mut (),  // void* in/out
        hwnd: isize,  // INT_PTR
        szConnStrIn: *mut u8,  // BYTE*
        cchConnStrIn: i16,  // SHORT
        szConnStrOut: *mut u8,  // BYTE* optional, out
        cchConnStrOutMax: i16,  // SHORT
        pcchConnStrOut: *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 SQLDriverConnect(IntPtr hdbc, IntPtr hwnd, IntPtr szConnStrIn, short cchConnStrIn, IntPtr szConnStrOut, short cchConnStrOutMax, IntPtr pcchConnStrOut, ushort fDriverCompletion);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLDriverConnect' -Namespace Win32 -PassThru
# $api::SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)

#uselib "ODBC32.dll"
#func global SQLDriverConnect "SQLDriverConnect" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SQLDriverConnect hdbc, hwnd, varptr(szConnStrIn), cchConnStrIn, varptr(szConnStrOut), cchConnStrOutMax, varptr(pcchConnStrOut), fDriverCompletion   ; 戻り値は stat
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "sptr"
; cchConnStrIn : SHORT -> "sptr"
; szConnStrOut : BYTE* optional, out -> "sptr"
; cchConnStrOutMax : SHORT -> "sptr"
; pcchConnStrOut : 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 SQLDriverConnect "SQLDriverConnect" sptr, sptr, var, int, var, int, var, int
; res = SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "var"
; cchConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "var"
; cchConnStrOutMax : SHORT -> "int"
; pcchConnStrOut : 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 SQLDriverConnect "SQLDriverConnect" sptr, sptr, sptr, int, sptr, int, sptr, int
; res = SQLDriverConnect(hdbc, hwnd, varptr(szConnStrIn), cchConnStrIn, varptr(szConnStrOut), cchConnStrOutMax, varptr(pcchConnStrOut), fDriverCompletion)
; hdbc : void* in/out -> "sptr"
; hwnd : INT_PTR -> "sptr"
; szConnStrIn : BYTE* -> "sptr"
; cchConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "sptr"
; cchConnStrOutMax : SHORT -> "int"
; pcchConnStrOut : 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 SQLDriverConnect(void* hdbc, INT_PTR hwnd, BYTE* szConnStrIn, SHORT cchConnStrIn, BYTE* szConnStrOut, SHORT cchConnStrOutMax, SHORT* pcchConnStrOut, WORD fDriverCompletion)
#uselib "ODBC32.dll"
#cfunc global SQLDriverConnect "SQLDriverConnect" intptr, intptr, var, int, var, int, var, int
; res = SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
; hdbc : void* in/out -> "intptr"
; hwnd : INT_PTR -> "intptr"
; szConnStrIn : BYTE* -> "var"
; cchConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "var"
; cchConnStrOutMax : SHORT -> "int"
; pcchConnStrOut : 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 SQLDriverConnect(void* hdbc, INT_PTR hwnd, BYTE* szConnStrIn, SHORT cchConnStrIn, BYTE* szConnStrOut, SHORT cchConnStrOutMax, SHORT* pcchConnStrOut, WORD fDriverCompletion)
#uselib "ODBC32.dll"
#cfunc global SQLDriverConnect "SQLDriverConnect" intptr, intptr, intptr, int, intptr, int, intptr, int
; res = SQLDriverConnect(hdbc, hwnd, varptr(szConnStrIn), cchConnStrIn, varptr(szConnStrOut), cchConnStrOutMax, varptr(pcchConnStrOut), fDriverCompletion)
; hdbc : void* in/out -> "intptr"
; hwnd : INT_PTR -> "intptr"
; szConnStrIn : BYTE* -> "intptr"
; cchConnStrIn : SHORT -> "int"
; szConnStrOut : BYTE* optional, out -> "intptr"
; cchConnStrOutMax : SHORT -> "int"
; pcchConnStrOut : 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")
	procSQLDriverConnect = odbc32.NewProc("SQLDriverConnect")
)

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

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

result := DllCall("ODBC32\SQLDriverConnect"
    , "Ptr", hdbc   ; void* in/out
    , "Ptr", hwnd   ; INT_PTR
    , "Ptr", szConnStrIn   ; BYTE*
    , "Short", cchConnStrIn   ; SHORT
    , "Ptr", szConnStrOut   ; BYTE* optional, out
    , "Short", cchConnStrOutMax   ; SHORT
    , "Ptr", pcchConnStrOut   ; SHORT* optional, out
    , "UShort", fDriverCompletion   ; WORD
    , "Short")   ; return: SHORT

●SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion) = DLL("ODBC32.dll", "int SQLDriverConnect(void*, int, void*, int, void*, int, void*, int)")
# 呼び出し: SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
# hdbc : void* in/out -> "void*"
# hwnd : INT_PTR -> "int"
# szConnStrIn : BYTE* -> "void*"
# cchConnStrIn : SHORT -> "int"
# szConnStrOut : BYTE* optional, out -> "void*"
# cchConnStrOutMax : SHORT -> "int"
# pcchConnStrOut : 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 SQLDriverConnect(
    hdbc: ?*anyopaque, // void* in/out
    hwnd: isize, // INT_PTR
    szConnStrIn: [*c]u8, // BYTE*
    cchConnStrIn: i16, // SHORT
    szConnStrOut: [*c]u8, // BYTE* optional, out
    cchConnStrOutMax: i16, // SHORT
    pcchConnStrOut: [*c]i16, // SHORT* optional, out
    fDriverCompletion: u16 // WORD
) callconv(std.os.windows.WINAPI) i16;

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

pragma(lib, "odbc32");
extern(Windows)
short SQLDriverConnect(
    void* hdbc,   // void* in/out
    ptrdiff_t hwnd,   // INT_PTR
    ubyte* szConnStrIn,   // BYTE*
    short cchConnStrIn,   // SHORT
    ubyte* szConnStrOut,   // BYTE* optional, out
    short cchConnStrOutMax,   // SHORT
    short* pcchConnStrOut,   // SHORT* optional, out
    ushort fDriverCompletion   // WORD
);

ccall((:SQLDriverConnect, "ODBC32.dll"), stdcall, Int16,
      (Ptr{Cvoid}, Int, Ptr{UInt8}, Int16, Ptr{UInt8}, Int16, Ptr{Int16}, UInt16),
      hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
# hdbc : void* in/out -> Ptr{Cvoid}
# hwnd : INT_PTR -> Int
# szConnStrIn : BYTE* -> Ptr{UInt8}
# cchConnStrIn : SHORT -> Int16
# szConnStrOut : BYTE* optional, out -> Ptr{UInt8}
# cchConnStrOutMax : SHORT -> Int16
# pcchConnStrOut : 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 SQLDriverConnect(
    void* hdbc,
    intptr_t hwnd,
    uint8_t* szConnStrIn,
    int16_t cchConnStrIn,
    uint8_t* szConnStrOut,
    int16_t cchConnStrOutMax,
    int16_t* pcchConnStrOut,
    uint16_t fDriverCompletion);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
-- hdbc : void* in/out
-- hwnd : INT_PTR
-- szConnStrIn : BYTE*
-- cchConnStrIn : SHORT
-- szConnStrOut : BYTE* optional, out
-- cchConnStrOutMax : SHORT
-- pcchConnStrOut : 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 SQLDriverConnect = lib.func('__stdcall', 'SQLDriverConnect', 'int16_t', ['void *', 'intptr_t', 'uint8_t *', 'int16_t', 'uint8_t *', 'int16_t', 'int16_t *', 'uint16_t']);
// SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
// hdbc : void* in/out -> 'void *'
// hwnd : INT_PTR -> 'intptr_t'
// szConnStrIn : BYTE* -> 'uint8_t *'
// cchConnStrIn : SHORT -> 'int16_t'
// szConnStrOut : BYTE* optional, out -> 'uint8_t *'
// cchConnStrOutMax : SHORT -> 'int16_t'
// pcchConnStrOut : 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", {
  SQLDriverConnect: { parameters: ["pointer", "isize", "pointer", "i16", "pointer", "i16", "pointer", "u16"], result: "i16" },
});
// lib.symbols.SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion)
// hdbc : void* in/out -> "pointer"
// hwnd : INT_PTR -> "isize"
// szConnStrIn : BYTE* -> "pointer"
// cchConnStrIn : SHORT -> "i16"
// szConnStrOut : BYTE* optional, out -> "pointer"
// cchConnStrOutMax : SHORT -> "i16"
// pcchConnStrOut : 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 SQLDriverConnect(
    void* hdbc,
    intptr_t hwnd,
    uint8_t* szConnStrIn,
    int16_t cchConnStrIn,
    uint8_t* szConnStrOut,
    int16_t cchConnStrOutMax,
    int16_t* pcchConnStrOut,
    uint16_t fDriverCompletion);
C, "ODBC32.dll");
// $ffi->SQLDriverConnect(hdbc, hwnd, szConnStrIn, cchConnStrIn, szConnStrOut, cchConnStrOutMax, pcchConnStrOut, fDriverCompletion);
// hdbc : void* in/out
// hwnd : INT_PTR
// szConnStrIn : BYTE*
// cchConnStrIn : SHORT
// szConnStrOut : BYTE* optional, out
// cchConnStrOutMax : SHORT
// pcchConnStrOut : 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 SQLDriverConnect(
        Pointer hdbc,   // void* in/out
        long hwnd,   // INT_PTR
        byte[] szConnStrIn,   // BYTE*
        short cchConnStrIn,   // SHORT
        byte[] szConnStrOut,   // BYTE* optional, out
        short cchConnStrOutMax,   // SHORT
        ShortByReference pcchConnStrOut,   // SHORT* optional, out
        short fDriverCompletion   // WORD
    );
}

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

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

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

foreign import stdcall safe "SQLDriverConnect"
  c_SQLDriverConnect :: 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
-- cchConnStrIn : SHORT -> Int16
-- szConnStrOut : BYTE* optional, out -> Ptr Word8
-- cchConnStrOutMax : SHORT -> Int16
-- pcchConnStrOut : 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 sqldriverconnect =
  foreign "SQLDriverConnect"
    ((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) *)
(* cchConnStrIn : SHORT -> int16_t *)
(* szConnStrOut : BYTE* optional, out -> (ptr uint8_t) *)
(* cchConnStrOutMax : SHORT -> int16_t *)
(* pcchConnStrOut : 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 ("SQLDriverConnect" sqldriver-connect :convention :stdcall) :int16
  (hdbc :pointer)   ; void* in/out
  (hwnd :int64)   ; INT_PTR
  (sz-conn-str-in :pointer)   ; BYTE*
  (cch-conn-str-in :int16)   ; SHORT
  (sz-conn-str-out :pointer)   ; BYTE* optional, out
  (cch-conn-str-out-max :int16)   ; SHORT
  (pcch-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 $SQLDriverConnect = Win32::API::More->new('ODBC32',
    'short SQLDriverConnect(LPVOID hdbc, LPARAM hwnd, LPVOID szConnStrIn, short cchConnStrIn, LPVOID szConnStrOut, short cchConnStrOutMax, LPVOID pcchConnStrOut, WORD fDriverCompletion)');
# my $ret = $SQLDriverConnect->Call($hdbc, $hwnd, $szConnStrIn, $cchConnStrIn, $szConnStrOut, $cchConnStrOutMax, $pcchConnStrOut, $fDriverCompletion);
# hdbc : void* in/out -> LPVOID
# hwnd : INT_PTR -> LPARAM
# szConnStrIn : BYTE* -> LPVOID
# cchConnStrIn : SHORT -> short
# szConnStrOut : BYTE* optional, out -> LPVOID
# cchConnStrOutMax : SHORT -> short
# pcchConnStrOut : 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。

SQLDriverConnect

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パラメーター

各言語での呼び出し定義

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