SQLGetDiagRecA

関数

診断レコードのSQLState・エラー情報を取得する(ANSI)。

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 SQLGetDiagRecA(
    SHORT fHandleType,
    void* handle,
    SHORT iRecord,
    BYTE* szSqlState,   // optional
    INT* pfNativeError,
    BYTE* szErrorMsg,   // optional
    SHORT cbErrorMsgMax,
    SHORT* pcbErrorMsg
);

パラメーター

名前	型	方向	説明
fHandleType	SHORT	in	ハンドル種別。SQL_HANDLE_ENV/DBC/STMT/DESCのいずれか。
handle	void*	inout	診断情報を取得する対象ハンドル。
iRecord	SHORT	in	診断レコード番号。1始まりで指定する。
szSqlState	BYTE*	outoptional	5文字のSQLSTATEを受け取るバッファ。出力用。
pfNativeError	INT*	inout	ドライバ固有のネイティブエラーコードを受け取るポインタ。
szErrorMsg	BYTE*	outoptional	エラーメッセージ本文を受け取るバッファ。出力用。
cbErrorMsgMax	SHORT	in	szErrorMsgバッファのバイト長。
pcbErrorMsg	SHORT*	inout	実際に返されたメッセージのバイト長を受け取るポインタ。

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 SQLGetDiagRecA(
    SHORT fHandleType,
    void* handle,
    SHORT iRecord,
    BYTE* szSqlState,   // optional
    INT* pfNativeError,
    BYTE* szErrorMsg,   // optional
    SHORT cbErrorMsgMax,
    SHORT* pcbErrorMsg
);

[DllImport("ODBC32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern short SQLGetDiagRecA(
    short fHandleType,   // SHORT
    IntPtr handle,   // void* in/out
    short iRecord,   // SHORT
    IntPtr szSqlState,   // BYTE* optional, out
    ref int pfNativeError,   // INT* in/out
    IntPtr szErrorMsg,   // BYTE* optional, out
    short cbErrorMsgMax,   // SHORT
    ref short pcbErrorMsg   // SHORT* in/out
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLGetDiagRecA(
    fHandleType As Short,   ' SHORT
    handle As IntPtr,   ' void* in/out
    iRecord As Short,   ' SHORT
    szSqlState As IntPtr,   ' BYTE* optional, out
    ByRef pfNativeError As Integer,   ' INT* in/out
    szErrorMsg As IntPtr,   ' BYTE* optional, out
    cbErrorMsgMax As Short,   ' SHORT
    ByRef pcbErrorMsg As Short   ' SHORT* in/out
) As Short
End Function

' fHandleType : SHORT
' handle : void* in/out
' iRecord : SHORT
' szSqlState : BYTE* optional, out
' pfNativeError : INT* in/out
' szErrorMsg : BYTE* optional, out
' cbErrorMsgMax : SHORT
' pcbErrorMsg : SHORT* in/out
Declare PtrSafe Function SQLGetDiagRecA Lib "odbc32" ( _
    ByVal fHandleType As Integer, _
    ByVal handle As LongPtr, _
    ByVal iRecord As Integer, _
    ByVal szSqlState As LongPtr, _
    ByRef pfNativeError As Long, _
    ByVal szErrorMsg As LongPtr, _
    ByVal cbErrorMsgMax As Integer, _
    ByRef pcbErrorMsg 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

SQLGetDiagRecA = ctypes.windll.odbc32.SQLGetDiagRecA
SQLGetDiagRecA.restype = ctypes.c_short
SQLGetDiagRecA.argtypes = [
    ctypes.c_short,  # fHandleType : SHORT
    ctypes.POINTER(None),  # handle : void* in/out
    ctypes.c_short,  # iRecord : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # szSqlState : BYTE* optional, out
    ctypes.POINTER(ctypes.c_int),  # pfNativeError : INT* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # szErrorMsg : BYTE* optional, out
    ctypes.c_short,  # cbErrorMsgMax : SHORT
    ctypes.POINTER(ctypes.c_short),  # pcbErrorMsg : SHORT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLGetDiagRecA = Fiddle::Function.new(
  lib['SQLGetDiagRecA'],
  [
    Fiddle::TYPE_SHORT,  # fHandleType : SHORT
    Fiddle::TYPE_VOIDP,  # handle : void* in/out
    Fiddle::TYPE_SHORT,  # iRecord : SHORT
    Fiddle::TYPE_VOIDP,  # szSqlState : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pfNativeError : INT* in/out
    Fiddle::TYPE_VOIDP,  # szErrorMsg : BYTE* optional, out
    Fiddle::TYPE_SHORT,  # cbErrorMsgMax : SHORT
    Fiddle::TYPE_VOIDP,  # pcbErrorMsg : SHORT* in/out
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLGetDiagRecA(
        fHandleType: i16,  // SHORT
        handle: *mut (),  // void* in/out
        iRecord: i16,  // SHORT
        szSqlState: *mut u8,  // BYTE* optional, out
        pfNativeError: *mut i32,  // INT* in/out
        szErrorMsg: *mut u8,  // BYTE* optional, out
        cbErrorMsgMax: i16,  // SHORT
        pcbErrorMsg: *mut i16  // SHORT* in/out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLGetDiagRecA(short fHandleType, IntPtr handle, short iRecord, IntPtr szSqlState, ref int pfNativeError, IntPtr szErrorMsg, short cbErrorMsgMax, ref short pcbErrorMsg);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetDiagRecA' -Namespace Win32 -PassThru
# $api::SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)

#uselib "ODBC32.dll"
#func global SQLGetDiagRecA "SQLGetDiagRecA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SQLGetDiagRecA fHandleType, handle, iRecord, varptr(szSqlState), varptr(pfNativeError), varptr(szErrorMsg), cbErrorMsgMax, varptr(pcbErrorMsg)   ; 戻り値は stat
; fHandleType : SHORT -> "sptr"
; handle : void* in/out -> "sptr"
; iRecord : SHORT -> "sptr"
; szSqlState : BYTE* optional, out -> "sptr"
; pfNativeError : INT* in/out -> "sptr"
; szErrorMsg : BYTE* optional, out -> "sptr"
; cbErrorMsgMax : SHORT -> "sptr"
; pcbErrorMsg : SHORT* 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。

出力引数:

#uselib "ODBC32.dll"
#cfunc global SQLGetDiagRecA "SQLGetDiagRecA" int, sptr, int, var, var, var, int, var
; res = SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
; fHandleType : SHORT -> "int"
; handle : void* in/out -> "sptr"
; iRecord : SHORT -> "int"
; szSqlState : BYTE* optional, out -> "var"
; pfNativeError : INT* in/out -> "var"
; szErrorMsg : BYTE* optional, out -> "var"
; cbErrorMsgMax : SHORT -> "int"
; pcbErrorMsg : SHORT* in/out -> "var"
; ※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 SQLGetDiagRecA "SQLGetDiagRecA" int, sptr, int, sptr, sptr, sptr, int, sptr
; res = SQLGetDiagRecA(fHandleType, handle, iRecord, varptr(szSqlState), varptr(pfNativeError), varptr(szErrorMsg), cbErrorMsgMax, varptr(pcbErrorMsg))
; fHandleType : SHORT -> "int"
; handle : void* in/out -> "sptr"
; iRecord : SHORT -> "int"
; szSqlState : BYTE* optional, out -> "sptr"
; pfNativeError : INT* in/out -> "sptr"
; szErrorMsg : BYTE* optional, out -> "sptr"
; cbErrorMsgMax : SHORT -> "int"
; pcbErrorMsg : SHORT* in/out -> "sptr"
; ※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 SQLGetDiagRecA(SHORT fHandleType, void* handle, SHORT iRecord, BYTE* szSqlState, INT* pfNativeError, BYTE* szErrorMsg, SHORT cbErrorMsgMax, SHORT* pcbErrorMsg)
#uselib "ODBC32.dll"
#cfunc global SQLGetDiagRecA "SQLGetDiagRecA" int, intptr, int, var, var, var, int, var
; res = SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
; fHandleType : SHORT -> "int"
; handle : void* in/out -> "intptr"
; iRecord : SHORT -> "int"
; szSqlState : BYTE* optional, out -> "var"
; pfNativeError : INT* in/out -> "var"
; szErrorMsg : BYTE* optional, out -> "var"
; cbErrorMsgMax : SHORT -> "int"
; pcbErrorMsg : SHORT* in/out -> "var"
; ※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 SQLGetDiagRecA(SHORT fHandleType, void* handle, SHORT iRecord, BYTE* szSqlState, INT* pfNativeError, BYTE* szErrorMsg, SHORT cbErrorMsgMax, SHORT* pcbErrorMsg)
#uselib "ODBC32.dll"
#cfunc global SQLGetDiagRecA "SQLGetDiagRecA" int, intptr, int, intptr, intptr, intptr, int, intptr
; res = SQLGetDiagRecA(fHandleType, handle, iRecord, varptr(szSqlState), varptr(pfNativeError), varptr(szErrorMsg), cbErrorMsgMax, varptr(pcbErrorMsg))
; fHandleType : SHORT -> "int"
; handle : void* in/out -> "intptr"
; iRecord : SHORT -> "int"
; szSqlState : BYTE* optional, out -> "intptr"
; pfNativeError : INT* in/out -> "intptr"
; szErrorMsg : BYTE* optional, out -> "intptr"
; cbErrorMsgMax : SHORT -> "int"
; pcbErrorMsg : SHORT* in/out -> "intptr"
; ※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")
	procSQLGetDiagRecA = odbc32.NewProc("SQLGetDiagRecA")
)

// fHandleType (SHORT), handle (void* in/out), iRecord (SHORT), szSqlState (BYTE* optional, out), pfNativeError (INT* in/out), szErrorMsg (BYTE* optional, out), cbErrorMsgMax (SHORT), pcbErrorMsg (SHORT* in/out)
r1, _, err := procSQLGetDiagRecA.Call(
	uintptr(fHandleType),
	uintptr(handle),
	uintptr(iRecord),
	uintptr(szSqlState),
	uintptr(pfNativeError),
	uintptr(szErrorMsg),
	uintptr(cbErrorMsgMax),
	uintptr(pcbErrorMsg),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLGetDiagRecA(
  fHandleType: Smallint;   // SHORT
  handle: Pointer;   // void* in/out
  iRecord: Smallint;   // SHORT
  szSqlState: Pointer;   // BYTE* optional, out
  pfNativeError: Pointer;   // INT* in/out
  szErrorMsg: Pointer;   // BYTE* optional, out
  cbErrorMsgMax: Smallint;   // SHORT
  pcbErrorMsg: Pointer   // SHORT* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetDiagRecA';

result := DllCall("ODBC32\SQLGetDiagRecA"
    , "Short", fHandleType   ; SHORT
    , "Ptr", handle   ; void* in/out
    , "Short", iRecord   ; SHORT
    , "Ptr", szSqlState   ; BYTE* optional, out
    , "Ptr", pfNativeError   ; INT* in/out
    , "Ptr", szErrorMsg   ; BYTE* optional, out
    , "Short", cbErrorMsgMax   ; SHORT
    , "Ptr", pcbErrorMsg   ; SHORT* in/out
    , "Short")   ; return: SHORT

●SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg) = DLL("ODBC32.dll", "int SQLGetDiagRecA(int, void*, int, void*, void*, void*, int, void*)")
# 呼び出し: SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
# fHandleType : SHORT -> "int"
# handle : void* in/out -> "void*"
# iRecord : SHORT -> "int"
# szSqlState : BYTE* optional, out -> "void*"
# pfNativeError : INT* in/out -> "void*"
# szErrorMsg : BYTE* optional, out -> "void*"
# cbErrorMsgMax : SHORT -> "int"
# pcbErrorMsg : SHORT* 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 SQLGetDiagRecA(
    fHandleType: i16, // SHORT
    handle: ?*anyopaque, // void* in/out
    iRecord: i16, // SHORT
    szSqlState: [*c]u8, // BYTE* optional, out
    pfNativeError: [*c]i32, // INT* in/out
    szErrorMsg: [*c]u8, // BYTE* optional, out
    cbErrorMsgMax: i16, // SHORT
    pcbErrorMsg: [*c]i16 // SHORT* in/out
) callconv(std.os.windows.WINAPI) i16;

proc SQLGetDiagRecA(
    fHandleType: int16,  # SHORT
    handle: pointer,  # void* in/out
    iRecord: int16,  # SHORT
    szSqlState: ptr uint8,  # BYTE* optional, out
    pfNativeError: ptr int32,  # INT* in/out
    szErrorMsg: ptr uint8,  # BYTE* optional, out
    cbErrorMsgMax: int16,  # SHORT
    pcbErrorMsg: ptr int16  # SHORT* in/out
): int16 {.importc: "SQLGetDiagRecA", stdcall, dynlib: "ODBC32.dll".}

pragma(lib, "odbc32");
extern(Windows)
short SQLGetDiagRecA(
    short fHandleType,   // SHORT
    void* handle,   // void* in/out
    short iRecord,   // SHORT
    ubyte* szSqlState,   // BYTE* optional, out
    int* pfNativeError,   // INT* in/out
    ubyte* szErrorMsg,   // BYTE* optional, out
    short cbErrorMsgMax,   // SHORT
    short* pcbErrorMsg   // SHORT* in/out
);

ccall((:SQLGetDiagRecA, "ODBC32.dll"), stdcall, Int16,
      (Int16, Ptr{Cvoid}, Int16, Ptr{UInt8}, Ptr{Int32}, Ptr{UInt8}, Int16, Ptr{Int16}),
      fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
# fHandleType : SHORT -> Int16
# handle : void* in/out -> Ptr{Cvoid}
# iRecord : SHORT -> Int16
# szSqlState : BYTE* optional, out -> Ptr{UInt8}
# pfNativeError : INT* in/out -> Ptr{Int32}
# szErrorMsg : BYTE* optional, out -> Ptr{UInt8}
# cbErrorMsgMax : SHORT -> Int16
# pcbErrorMsg : SHORT* in/out -> Ptr{Int16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int16_t SQLGetDiagRecA(
    int16_t fHandleType,
    void* handle,
    int16_t iRecord,
    uint8_t* szSqlState,
    int32_t* pfNativeError,
    uint8_t* szErrorMsg,
    int16_t cbErrorMsgMax,
    int16_t* pcbErrorMsg);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
-- fHandleType : SHORT
-- handle : void* in/out
-- iRecord : SHORT
-- szSqlState : BYTE* optional, out
-- pfNativeError : INT* in/out
-- szErrorMsg : BYTE* optional, out
-- cbErrorMsgMax : SHORT
-- pcbErrorMsg : SHORT* 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 SQLGetDiagRecA = lib.func('__stdcall', 'SQLGetDiagRecA', 'int16_t', ['int16_t', 'void *', 'int16_t', 'uint8_t *', 'int32_t *', 'uint8_t *', 'int16_t', 'int16_t *']);
// SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
// fHandleType : SHORT -> 'int16_t'
// handle : void* in/out -> 'void *'
// iRecord : SHORT -> 'int16_t'
// szSqlState : BYTE* optional, out -> 'uint8_t *'
// pfNativeError : INT* in/out -> 'int32_t *'
// szErrorMsg : BYTE* optional, out -> 'uint8_t *'
// cbErrorMsgMax : SHORT -> 'int16_t'
// pcbErrorMsg : SHORT* in/out -> 'int16_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", {
  SQLGetDiagRecA: { parameters: ["i16", "pointer", "i16", "pointer", "pointer", "pointer", "i16", "pointer"], result: "i16" },
});
// lib.symbols.SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg)
// fHandleType : SHORT -> "i16"
// handle : void* in/out -> "pointer"
// iRecord : SHORT -> "i16"
// szSqlState : BYTE* optional, out -> "pointer"
// pfNativeError : INT* in/out -> "pointer"
// szErrorMsg : BYTE* optional, out -> "pointer"
// cbErrorMsgMax : SHORT -> "i16"
// pcbErrorMsg : SHORT* 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 SQLGetDiagRecA(
    int16_t fHandleType,
    void* handle,
    int16_t iRecord,
    uint8_t* szSqlState,
    int32_t* pfNativeError,
    uint8_t* szErrorMsg,
    int16_t cbErrorMsgMax,
    int16_t* pcbErrorMsg);
C, "ODBC32.dll");
// $ffi->SQLGetDiagRecA(fHandleType, handle, iRecord, szSqlState, pfNativeError, szErrorMsg, cbErrorMsgMax, pcbErrorMsg);
// fHandleType : SHORT
// handle : void* in/out
// iRecord : SHORT
// szSqlState : BYTE* optional, out
// pfNativeError : INT* in/out
// szErrorMsg : BYTE* optional, out
// cbErrorMsgMax : SHORT
// pcbErrorMsg : SHORT* 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 SQLGetDiagRecA(
        short fHandleType,   // SHORT
        Pointer handle,   // void* in/out
        short iRecord,   // SHORT
        byte[] szSqlState,   // BYTE* optional, out
        IntByReference pfNativeError,   // INT* in/out
        byte[] szErrorMsg,   // BYTE* optional, out
        short cbErrorMsgMax,   // SHORT
        ShortByReference pcbErrorMsg   // SHORT* in/out
    );
}

@[Link("odbc32")]
lib LibODBC32
  fun SQLGetDiagRecA = SQLGetDiagRecA(
    fHandleType : Int16,   # SHORT
    handle : Void*,   # void* in/out
    iRecord : Int16,   # SHORT
    szSqlState : UInt8*,   # BYTE* optional, out
    pfNativeError : Int32*,   # INT* in/out
    szErrorMsg : UInt8*,   # BYTE* optional, out
    cbErrorMsgMax : Int16,   # SHORT
    pcbErrorMsg : Int16*   # SHORT* 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 SQLGetDiagRecANative = Int16 Function(Int16, Pointer<Void>, Int16, Pointer<Uint8>, Pointer<Int32>, Pointer<Uint8>, Int16, Pointer<Int16>);
typedef SQLGetDiagRecADart = int Function(int, Pointer<Void>, int, Pointer<Uint8>, Pointer<Int32>, Pointer<Uint8>, int, Pointer<Int16>);
final SQLGetDiagRecA = DynamicLibrary.open('ODBC32.dll')
    .lookupFunction<SQLGetDiagRecANative, SQLGetDiagRecADart>('SQLGetDiagRecA');
// fHandleType : SHORT -> Int16
// handle : void* in/out -> Pointer<Void>
// iRecord : SHORT -> Int16
// szSqlState : BYTE* optional, out -> Pointer<Uint8>
// pfNativeError : INT* in/out -> Pointer<Int32>
// szErrorMsg : BYTE* optional, out -> Pointer<Uint8>
// cbErrorMsgMax : SHORT -> Int16
// pcbErrorMsg : SHORT* in/out -> Pointer<Int16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLGetDiagRecA(
  fHandleType: Smallint;   // SHORT
  handle: Pointer;   // void* in/out
  iRecord: Smallint;   // SHORT
  szSqlState: Pointer;   // BYTE* optional, out
  pfNativeError: Pointer;   // INT* in/out
  szErrorMsg: Pointer;   // BYTE* optional, out
  cbErrorMsgMax: Smallint;   // SHORT
  pcbErrorMsg: Pointer   // SHORT* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetDiagRecA';

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

foreign import stdcall safe "SQLGetDiagRecA"
  c_SQLGetDiagRecA :: Int16 -> Ptr () -> Int16 -> Ptr Word8 -> Ptr Int32 -> Ptr Word8 -> Int16 -> Ptr Int16 -> IO Int16
-- fHandleType : SHORT -> Int16
-- handle : void* in/out -> Ptr ()
-- iRecord : SHORT -> Int16
-- szSqlState : BYTE* optional, out -> Ptr Word8
-- pfNativeError : INT* in/out -> Ptr Int32
-- szErrorMsg : BYTE* optional, out -> Ptr Word8
-- cbErrorMsgMax : SHORT -> Int16
-- pcbErrorMsg : SHORT* in/out -> Ptr Int16
-- 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 sqlgetdiagreca =
  foreign "SQLGetDiagRecA"
    (int16_t @-> (ptr void) @-> int16_t @-> (ptr uint8_t) @-> (ptr int32_t) @-> (ptr uint8_t) @-> int16_t @-> (ptr int16_t) @-> returning int16_t)
(* fHandleType : SHORT -> int16_t *)
(* handle : void* in/out -> (ptr void) *)
(* iRecord : SHORT -> int16_t *)
(* szSqlState : BYTE* optional, out -> (ptr uint8_t) *)
(* pfNativeError : INT* in/out -> (ptr int32_t) *)
(* szErrorMsg : BYTE* optional, out -> (ptr uint8_t) *)
(* cbErrorMsgMax : SHORT -> int16_t *)
(* pcbErrorMsg : SHORT* in/out -> (ptr int16_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 ("SQLGetDiagRecA" sqlget-diag-rec-a :convention :stdcall) :int16
  (f-handle-type :int16)   ; SHORT
  (handle :pointer)   ; void* in/out
  (i-record :int16)   ; SHORT
  (sz-sql-state :pointer)   ; BYTE* optional, out
  (pf-native-error :pointer)   ; INT* in/out
  (sz-error-msg :pointer)   ; BYTE* optional, out
  (cb-error-msg-max :int16)   ; SHORT
  (pcb-error-msg :pointer))   ; SHORT* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SQLGetDiagRecA = Win32::API::More->new('ODBC32',
    'short SQLGetDiagRecA(short fHandleType, LPVOID handle, short iRecord, LPVOID szSqlState, LPVOID pfNativeError, LPVOID szErrorMsg, short cbErrorMsgMax, LPVOID pcbErrorMsg)');
# my $ret = $SQLGetDiagRecA->Call($fHandleType, $handle, $iRecord, $szSqlState, $pfNativeError, $szErrorMsg, $cbErrorMsgMax, $pcbErrorMsg);
# fHandleType : SHORT -> short
# handle : void* in/out -> LPVOID
# iRecord : SHORT -> short
# szSqlState : BYTE* optional, out -> LPVOID
# pfNativeError : INT* in/out -> LPVOID
# szErrorMsg : BYTE* optional, out -> LPVOID
# cbErrorMsgMax : SHORT -> short
# pcbErrorMsg : SHORT* 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。

SQLGetDiagRecA

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