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SQLSpecialColumnsA

関数

行を一意に識別する列や更新で変化する列の情報を取得する。

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 SQLSpecialColumnsA(
    void* hstmt,
    WORD fColType,
    BYTE* szCatalogName,   // optional
    SHORT cbCatalogName,
    BYTE* szSchemaName,   // optional
    SHORT cbSchemaName,
    BYTE* szTableName,   // optional
    SHORT cbTableName,
    WORD fScope,
    WORD fNullable
);

パラメーター

名前	型	方向	説明
hstmt	void*	inout	ODBCのステートメントハンドル。特殊列の結果セットを返す。
fColType	WORD	in	取得する列の種類。SQL_BEST_ROWIDまたはSQL_ROWVERを指定する。
szCatalogName	BYTE*	inoptional	検索対象のカタログ名。NULL指定可。
cbCatalogName	SHORT	in	szCatalogNameのバイト数。SQL_NTSでNUL終端とみなす。
szSchemaName	BYTE*	inoptional	検索対象のスキーマ名。NULL指定可。
cbSchemaName	SHORT	in	szSchemaNameのバイト数。SQL_NTSでNUL終端とみなす。
szTableName	BYTE*	inoptional	検索対象のテーブル名。
cbTableName	SHORT	in	szTableNameのバイト数。SQL_NTSでNUL終端とみなす。
fScope	WORD	in	行IDの有効範囲。SQL_SCOPE_CURROW等を指定する。
fNullable	WORD	in	NULL列を含めるか。SQL_NO_NULLSまたはSQL_NULLABLE。

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 SQLSpecialColumnsA(
    void* hstmt,
    WORD fColType,
    BYTE* szCatalogName,   // optional
    SHORT cbCatalogName,
    BYTE* szSchemaName,   // optional
    SHORT cbSchemaName,
    BYTE* szTableName,   // optional
    SHORT cbTableName,
    WORD fScope,
    WORD fNullable
);

[DllImport("ODBC32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern short SQLSpecialColumnsA(
    IntPtr hstmt,   // void* in/out
    ushort fColType,   // WORD
    IntPtr szCatalogName,   // BYTE* optional
    short cbCatalogName,   // SHORT
    IntPtr szSchemaName,   // BYTE* optional
    short cbSchemaName,   // SHORT
    IntPtr szTableName,   // BYTE* optional
    short cbTableName,   // SHORT
    ushort fScope,   // WORD
    ushort fNullable   // WORD
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLSpecialColumnsA(
    hstmt As IntPtr,   ' void* in/out
    fColType As UShort,   ' WORD
    szCatalogName As IntPtr,   ' BYTE* optional
    cbCatalogName As Short,   ' SHORT
    szSchemaName As IntPtr,   ' BYTE* optional
    cbSchemaName As Short,   ' SHORT
    szTableName As IntPtr,   ' BYTE* optional
    cbTableName As Short,   ' SHORT
    fScope As UShort,   ' WORD
    fNullable As UShort   ' WORD
) As Short
End Function

' hstmt : void* in/out
' fColType : WORD
' szCatalogName : BYTE* optional
' cbCatalogName : SHORT
' szSchemaName : BYTE* optional
' cbSchemaName : SHORT
' szTableName : BYTE* optional
' cbTableName : SHORT
' fScope : WORD
' fNullable : WORD
Declare PtrSafe Function SQLSpecialColumnsA Lib "odbc32" ( _
    ByVal hstmt As LongPtr, _
    ByVal fColType As Integer, _
    ByVal szCatalogName As LongPtr, _
    ByVal cbCatalogName As Integer, _
    ByVal szSchemaName As LongPtr, _
    ByVal cbSchemaName As Integer, _
    ByVal szTableName As LongPtr, _
    ByVal cbTableName As Integer, _
    ByVal fScope As Integer, _
    ByVal fNullable 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

SQLSpecialColumnsA = ctypes.windll.odbc32.SQLSpecialColumnsA
SQLSpecialColumnsA.restype = ctypes.c_short
SQLSpecialColumnsA.argtypes = [
    ctypes.POINTER(None),  # hstmt : void* in/out
    ctypes.c_ushort,  # fColType : WORD
    ctypes.POINTER(ctypes.c_ubyte),  # szCatalogName : BYTE* optional
    ctypes.c_short,  # cbCatalogName : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # szSchemaName : BYTE* optional
    ctypes.c_short,  # cbSchemaName : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # szTableName : BYTE* optional
    ctypes.c_short,  # cbTableName : SHORT
    ctypes.c_ushort,  # fScope : WORD
    ctypes.c_ushort,  # fNullable : WORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLSpecialColumnsA = Fiddle::Function.new(
  lib['SQLSpecialColumnsA'],
  [
    Fiddle::TYPE_VOIDP,  # hstmt : void* in/out
    -Fiddle::TYPE_SHORT,  # fColType : WORD
    Fiddle::TYPE_VOIDP,  # szCatalogName : BYTE* optional
    Fiddle::TYPE_SHORT,  # cbCatalogName : SHORT
    Fiddle::TYPE_VOIDP,  # szSchemaName : BYTE* optional
    Fiddle::TYPE_SHORT,  # cbSchemaName : SHORT
    Fiddle::TYPE_VOIDP,  # szTableName : BYTE* optional
    Fiddle::TYPE_SHORT,  # cbTableName : SHORT
    -Fiddle::TYPE_SHORT,  # fScope : WORD
    -Fiddle::TYPE_SHORT,  # fNullable : WORD
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLSpecialColumnsA(
        hstmt: *mut (),  // void* in/out
        fColType: u16,  // WORD
        szCatalogName: *mut u8,  // BYTE* optional
        cbCatalogName: i16,  // SHORT
        szSchemaName: *mut u8,  // BYTE* optional
        cbSchemaName: i16,  // SHORT
        szTableName: *mut u8,  // BYTE* optional
        cbTableName: i16,  // SHORT
        fScope: u16,  // WORD
        fNullable: u16  // WORD
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLSpecialColumnsA(IntPtr hstmt, ushort fColType, IntPtr szCatalogName, short cbCatalogName, IntPtr szSchemaName, short cbSchemaName, IntPtr szTableName, short cbTableName, ushort fScope, ushort fNullable);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLSpecialColumnsA' -Namespace Win32 -PassThru
# $api::SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)

#uselib "ODBC32.dll"
#func global SQLSpecialColumnsA "SQLSpecialColumnsA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SQLSpecialColumnsA hstmt, fColType, varptr(szCatalogName), cbCatalogName, varptr(szSchemaName), cbSchemaName, varptr(szTableName), cbTableName, fScope, fNullable   ; 戻り値は stat
; hstmt : void* in/out -> "sptr"
; fColType : WORD -> "sptr"
; szCatalogName : BYTE* optional -> "sptr"
; cbCatalogName : SHORT -> "sptr"
; szSchemaName : BYTE* optional -> "sptr"
; cbSchemaName : SHORT -> "sptr"
; szTableName : BYTE* optional -> "sptr"
; cbTableName : SHORT -> "sptr"
; fScope : WORD -> "sptr"
; fNullable : 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 SQLSpecialColumnsA "SQLSpecialColumnsA" sptr, int, var, int, var, int, var, int, int, int
; res = SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
; hstmt : void* in/out -> "sptr"
; fColType : WORD -> "int"
; szCatalogName : BYTE* optional -> "var"
; cbCatalogName : SHORT -> "int"
; szSchemaName : BYTE* optional -> "var"
; cbSchemaName : SHORT -> "int"
; szTableName : BYTE* optional -> "var"
; cbTableName : SHORT -> "int"
; fScope : WORD -> "int"
; fNullable : 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 SQLSpecialColumnsA "SQLSpecialColumnsA" sptr, int, sptr, int, sptr, int, sptr, int, int, int
; res = SQLSpecialColumnsA(hstmt, fColType, varptr(szCatalogName), cbCatalogName, varptr(szSchemaName), cbSchemaName, varptr(szTableName), cbTableName, fScope, fNullable)
; hstmt : void* in/out -> "sptr"
; fColType : WORD -> "int"
; szCatalogName : BYTE* optional -> "sptr"
; cbCatalogName : SHORT -> "int"
; szSchemaName : BYTE* optional -> "sptr"
; cbSchemaName : SHORT -> "int"
; szTableName : BYTE* optional -> "sptr"
; cbTableName : SHORT -> "int"
; fScope : WORD -> "int"
; fNullable : 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 SQLSpecialColumnsA(void* hstmt, WORD fColType, BYTE* szCatalogName, SHORT cbCatalogName, BYTE* szSchemaName, SHORT cbSchemaName, BYTE* szTableName, SHORT cbTableName, WORD fScope, WORD fNullable)
#uselib "ODBC32.dll"
#cfunc global SQLSpecialColumnsA "SQLSpecialColumnsA" intptr, int, var, int, var, int, var, int, int, int
; res = SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
; hstmt : void* in/out -> "intptr"
; fColType : WORD -> "int"
; szCatalogName : BYTE* optional -> "var"
; cbCatalogName : SHORT -> "int"
; szSchemaName : BYTE* optional -> "var"
; cbSchemaName : SHORT -> "int"
; szTableName : BYTE* optional -> "var"
; cbTableName : SHORT -> "int"
; fScope : WORD -> "int"
; fNullable : 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 SQLSpecialColumnsA(void* hstmt, WORD fColType, BYTE* szCatalogName, SHORT cbCatalogName, BYTE* szSchemaName, SHORT cbSchemaName, BYTE* szTableName, SHORT cbTableName, WORD fScope, WORD fNullable)
#uselib "ODBC32.dll"
#cfunc global SQLSpecialColumnsA "SQLSpecialColumnsA" intptr, int, intptr, int, intptr, int, intptr, int, int, int
; res = SQLSpecialColumnsA(hstmt, fColType, varptr(szCatalogName), cbCatalogName, varptr(szSchemaName), cbSchemaName, varptr(szTableName), cbTableName, fScope, fNullable)
; hstmt : void* in/out -> "intptr"
; fColType : WORD -> "int"
; szCatalogName : BYTE* optional -> "intptr"
; cbCatalogName : SHORT -> "int"
; szSchemaName : BYTE* optional -> "intptr"
; cbSchemaName : SHORT -> "int"
; szTableName : BYTE* optional -> "intptr"
; cbTableName : SHORT -> "int"
; fScope : WORD -> "int"
; fNullable : 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")
	procSQLSpecialColumnsA = odbc32.NewProc("SQLSpecialColumnsA")
)

// hstmt (void* in/out), fColType (WORD), szCatalogName (BYTE* optional), cbCatalogName (SHORT), szSchemaName (BYTE* optional), cbSchemaName (SHORT), szTableName (BYTE* optional), cbTableName (SHORT), fScope (WORD), fNullable (WORD)
r1, _, err := procSQLSpecialColumnsA.Call(
	uintptr(hstmt),
	uintptr(fColType),
	uintptr(szCatalogName),
	uintptr(cbCatalogName),
	uintptr(szSchemaName),
	uintptr(cbSchemaName),
	uintptr(szTableName),
	uintptr(cbTableName),
	uintptr(fScope),
	uintptr(fNullable),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLSpecialColumnsA(
  hstmt: Pointer;   // void* in/out
  fColType: Word;   // WORD
  szCatalogName: Pointer;   // BYTE* optional
  cbCatalogName: Smallint;   // SHORT
  szSchemaName: Pointer;   // BYTE* optional
  cbSchemaName: Smallint;   // SHORT
  szTableName: Pointer;   // BYTE* optional
  cbTableName: Smallint;   // SHORT
  fScope: Word;   // WORD
  fNullable: Word   // WORD
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLSpecialColumnsA';

result := DllCall("ODBC32\SQLSpecialColumnsA"
    , "Ptr", hstmt   ; void* in/out
    , "UShort", fColType   ; WORD
    , "Ptr", szCatalogName   ; BYTE* optional
    , "Short", cbCatalogName   ; SHORT
    , "Ptr", szSchemaName   ; BYTE* optional
    , "Short", cbSchemaName   ; SHORT
    , "Ptr", szTableName   ; BYTE* optional
    , "Short", cbTableName   ; SHORT
    , "UShort", fScope   ; WORD
    , "UShort", fNullable   ; WORD
    , "Short")   ; return: SHORT

●SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable) = DLL("ODBC32.dll", "int SQLSpecialColumnsA(void*, int, void*, int, void*, int, void*, int, int, int)")
# 呼び出し: SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
# hstmt : void* in/out -> "void*"
# fColType : WORD -> "int"
# szCatalogName : BYTE* optional -> "void*"
# cbCatalogName : SHORT -> "int"
# szSchemaName : BYTE* optional -> "void*"
# cbSchemaName : SHORT -> "int"
# szTableName : BYTE* optional -> "void*"
# cbTableName : SHORT -> "int"
# fScope : WORD -> "int"
# fNullable : 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 SQLSpecialColumnsA(
    hstmt: ?*anyopaque, // void* in/out
    fColType: u16, // WORD
    szCatalogName: [*c]u8, // BYTE* optional
    cbCatalogName: i16, // SHORT
    szSchemaName: [*c]u8, // BYTE* optional
    cbSchemaName: i16, // SHORT
    szTableName: [*c]u8, // BYTE* optional
    cbTableName: i16, // SHORT
    fScope: u16, // WORD
    fNullable: u16 // WORD
) callconv(std.os.windows.WINAPI) i16;

proc SQLSpecialColumnsA(
    hstmt: pointer,  # void* in/out
    fColType: uint16,  # WORD
    szCatalogName: ptr uint8,  # BYTE* optional
    cbCatalogName: int16,  # SHORT
    szSchemaName: ptr uint8,  # BYTE* optional
    cbSchemaName: int16,  # SHORT
    szTableName: ptr uint8,  # BYTE* optional
    cbTableName: int16,  # SHORT
    fScope: uint16,  # WORD
    fNullable: uint16  # WORD
): int16 {.importc: "SQLSpecialColumnsA", stdcall, dynlib: "ODBC32.dll".}

pragma(lib, "odbc32");
extern(Windows)
short SQLSpecialColumnsA(
    void* hstmt,   // void* in/out
    ushort fColType,   // WORD
    ubyte* szCatalogName,   // BYTE* optional
    short cbCatalogName,   // SHORT
    ubyte* szSchemaName,   // BYTE* optional
    short cbSchemaName,   // SHORT
    ubyte* szTableName,   // BYTE* optional
    short cbTableName,   // SHORT
    ushort fScope,   // WORD
    ushort fNullable   // WORD
);

ccall((:SQLSpecialColumnsA, "ODBC32.dll"), stdcall, Int16,
      (Ptr{Cvoid}, UInt16, Ptr{UInt8}, Int16, Ptr{UInt8}, Int16, Ptr{UInt8}, Int16, UInt16, UInt16),
      hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
# hstmt : void* in/out -> Ptr{Cvoid}
# fColType : WORD -> UInt16
# szCatalogName : BYTE* optional -> Ptr{UInt8}
# cbCatalogName : SHORT -> Int16
# szSchemaName : BYTE* optional -> Ptr{UInt8}
# cbSchemaName : SHORT -> Int16
# szTableName : BYTE* optional -> Ptr{UInt8}
# cbTableName : SHORT -> Int16
# fScope : WORD -> UInt16
# fNullable : 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 SQLSpecialColumnsA(
    void* hstmt,
    uint16_t fColType,
    uint8_t* szCatalogName,
    int16_t cbCatalogName,
    uint8_t* szSchemaName,
    int16_t cbSchemaName,
    uint8_t* szTableName,
    int16_t cbTableName,
    uint16_t fScope,
    uint16_t fNullable);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
-- hstmt : void* in/out
-- fColType : WORD
-- szCatalogName : BYTE* optional
-- cbCatalogName : SHORT
-- szSchemaName : BYTE* optional
-- cbSchemaName : SHORT
-- szTableName : BYTE* optional
-- cbTableName : SHORT
-- fScope : WORD
-- fNullable : 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 SQLSpecialColumnsA = lib.func('__stdcall', 'SQLSpecialColumnsA', 'int16_t', ['void *', 'uint16_t', 'uint8_t *', 'int16_t', 'uint8_t *', 'int16_t', 'uint8_t *', 'int16_t', 'uint16_t', 'uint16_t']);
// SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
// hstmt : void* in/out -> 'void *'
// fColType : WORD -> 'uint16_t'
// szCatalogName : BYTE* optional -> 'uint8_t *'
// cbCatalogName : SHORT -> 'int16_t'
// szSchemaName : BYTE* optional -> 'uint8_t *'
// cbSchemaName : SHORT -> 'int16_t'
// szTableName : BYTE* optional -> 'uint8_t *'
// cbTableName : SHORT -> 'int16_t'
// fScope : WORD -> 'uint16_t'
// fNullable : 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", {
  SQLSpecialColumnsA: { parameters: ["pointer", "u16", "pointer", "i16", "pointer", "i16", "pointer", "i16", "u16", "u16"], result: "i16" },
});
// lib.symbols.SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable)
// hstmt : void* in/out -> "pointer"
// fColType : WORD -> "u16"
// szCatalogName : BYTE* optional -> "pointer"
// cbCatalogName : SHORT -> "i16"
// szSchemaName : BYTE* optional -> "pointer"
// cbSchemaName : SHORT -> "i16"
// szTableName : BYTE* optional -> "pointer"
// cbTableName : SHORT -> "i16"
// fScope : WORD -> "u16"
// fNullable : 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 SQLSpecialColumnsA(
    void* hstmt,
    uint16_t fColType,
    uint8_t* szCatalogName,
    int16_t cbCatalogName,
    uint8_t* szSchemaName,
    int16_t cbSchemaName,
    uint8_t* szTableName,
    int16_t cbTableName,
    uint16_t fScope,
    uint16_t fNullable);
C, "ODBC32.dll");
// $ffi->SQLSpecialColumnsA(hstmt, fColType, szCatalogName, cbCatalogName, szSchemaName, cbSchemaName, szTableName, cbTableName, fScope, fNullable);
// hstmt : void* in/out
// fColType : WORD
// szCatalogName : BYTE* optional
// cbCatalogName : SHORT
// szSchemaName : BYTE* optional
// cbSchemaName : SHORT
// szTableName : BYTE* optional
// cbTableName : SHORT
// fScope : WORD
// fNullable : 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 SQLSpecialColumnsA(
        Pointer hstmt,   // void* in/out
        short fColType,   // WORD
        byte[] szCatalogName,   // BYTE* optional
        short cbCatalogName,   // SHORT
        byte[] szSchemaName,   // BYTE* optional
        short cbSchemaName,   // SHORT
        byte[] szTableName,   // BYTE* optional
        short cbTableName,   // SHORT
        short fScope,   // WORD
        short fNullable   // WORD
    );
}

@[Link("odbc32")]
lib LibODBC32
  fun SQLSpecialColumnsA = SQLSpecialColumnsA(
    hstmt : Void*,   # void* in/out
    fColType : UInt16,   # WORD
    szCatalogName : UInt8*,   # BYTE* optional
    cbCatalogName : Int16,   # SHORT
    szSchemaName : UInt8*,   # BYTE* optional
    cbSchemaName : Int16,   # SHORT
    szTableName : UInt8*,   # BYTE* optional
    cbTableName : Int16,   # SHORT
    fScope : UInt16,   # WORD
    fNullable : 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 SQLSpecialColumnsANative = Int16 Function(Pointer<Void>, Uint16, Pointer<Uint8>, Int16, Pointer<Uint8>, Int16, Pointer<Uint8>, Int16, Uint16, Uint16);
typedef SQLSpecialColumnsADart = int Function(Pointer<Void>, int, Pointer<Uint8>, int, Pointer<Uint8>, int, Pointer<Uint8>, int, int, int);
final SQLSpecialColumnsA = DynamicLibrary.open('ODBC32.dll')
    .lookupFunction<SQLSpecialColumnsANative, SQLSpecialColumnsADart>('SQLSpecialColumnsA');
// hstmt : void* in/out -> Pointer<Void>
// fColType : WORD -> Uint16
// szCatalogName : BYTE* optional -> Pointer<Uint8>
// cbCatalogName : SHORT -> Int16
// szSchemaName : BYTE* optional -> Pointer<Uint8>
// cbSchemaName : SHORT -> Int16
// szTableName : BYTE* optional -> Pointer<Uint8>
// cbTableName : SHORT -> Int16
// fScope : WORD -> Uint16
// fNullable : WORD -> Uint16
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SQLSpecialColumnsA(
  hstmt: Pointer;   // void* in/out
  fColType: Word;   // WORD
  szCatalogName: Pointer;   // BYTE* optional
  cbCatalogName: Smallint;   // SHORT
  szSchemaName: Pointer;   // BYTE* optional
  cbSchemaName: Smallint;   // SHORT
  szTableName: Pointer;   // BYTE* optional
  cbTableName: Smallint;   // SHORT
  fScope: Word;   // WORD
  fNullable: Word   // WORD
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLSpecialColumnsA';

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

foreign import stdcall safe "SQLSpecialColumnsA"
  c_SQLSpecialColumnsA :: Ptr () -> Word16 -> Ptr Word8 -> Int16 -> Ptr Word8 -> Int16 -> Ptr Word8 -> Int16 -> Word16 -> Word16 -> IO Int16
-- hstmt : void* in/out -> Ptr ()
-- fColType : WORD -> Word16
-- szCatalogName : BYTE* optional -> Ptr Word8
-- cbCatalogName : SHORT -> Int16
-- szSchemaName : BYTE* optional -> Ptr Word8
-- cbSchemaName : SHORT -> Int16
-- szTableName : BYTE* optional -> Ptr Word8
-- cbTableName : SHORT -> Int16
-- fScope : WORD -> Word16
-- fNullable : 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 sqlspecialcolumnsa =
  foreign "SQLSpecialColumnsA"
    ((ptr void) @-> uint16_t @-> (ptr uint8_t) @-> int16_t @-> (ptr uint8_t) @-> int16_t @-> (ptr uint8_t) @-> int16_t @-> uint16_t @-> uint16_t @-> returning int16_t)
(* hstmt : void* in/out -> (ptr void) *)
(* fColType : WORD -> uint16_t *)
(* szCatalogName : BYTE* optional -> (ptr uint8_t) *)
(* cbCatalogName : SHORT -> int16_t *)
(* szSchemaName : BYTE* optional -> (ptr uint8_t) *)
(* cbSchemaName : SHORT -> int16_t *)
(* szTableName : BYTE* optional -> (ptr uint8_t) *)
(* cbTableName : SHORT -> int16_t *)
(* fScope : WORD -> uint16_t *)
(* fNullable : 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 ("SQLSpecialColumnsA" sqlspecial-columns-a :convention :stdcall) :int16
  (hstmt :pointer)   ; void* in/out
  (f-col-type :uint16)   ; WORD
  (sz-catalog-name :pointer)   ; BYTE* optional
  (cb-catalog-name :int16)   ; SHORT
  (sz-schema-name :pointer)   ; BYTE* optional
  (cb-schema-name :int16)   ; SHORT
  (sz-table-name :pointer)   ; BYTE* optional
  (cb-table-name :int16)   ; SHORT
  (f-scope :uint16)   ; WORD
  (f-nullable :uint16))   ; WORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SQLSpecialColumnsA = Win32::API::More->new('ODBC32',
    'short SQLSpecialColumnsA(LPVOID hstmt, WORD fColType, LPVOID szCatalogName, short cbCatalogName, LPVOID szSchemaName, short cbSchemaName, LPVOID szTableName, short cbTableName, WORD fScope, WORD fNullable)');
# my $ret = $SQLSpecialColumnsA->Call($hstmt, $fColType, $szCatalogName, $cbCatalogName, $szSchemaName, $cbSchemaName, $szTableName, $cbTableName, $fScope, $fNullable);
# hstmt : void* in/out -> LPVOID
# fColType : WORD -> WORD
# szCatalogName : BYTE* optional -> LPVOID
# cbCatalogName : SHORT -> short
# szSchemaName : BYTE* optional -> LPVOID
# cbSchemaName : SHORT -> short
# szTableName : BYTE* optional -> LPVOID
# cbTableName : SHORT -> short
# fScope : WORD -> WORD
# fNullable : WORD -> WORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

SQLSpecialColumnsA

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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