ホーム › System.Search › SQLGetCursorNameW
SQLGetCursorNameW
関数ステートメントのカーソル名を取得する(Unicode)。
シグネチャ
// ODBC32.dll (Unicode / -W)
#include <windows.h>
SHORT SQLGetCursorNameW(
void* hstmt,
WORD* szCursor, // optional
SHORT cchCursorMax,
SHORT* pcchCursor // optional
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| hstmt | void* | inout | カーソル名を取得する対象のステートメントハンドル。 |
| szCursor | WORD* | outoptional | カーソル名を受け取るバッファ。Unicode文字列。 |
| cchCursorMax | SHORT | in | szCursorバッファの文字数長。 |
| pcchCursor | SHORT* | outoptional | カーソル名の実際の文字数を受け取るポインタ。NULL可。 |
戻り値の型: SHORT
各言語での呼び出し定義
// ODBC32.dll (Unicode / -W)
#include <windows.h>
SHORT SQLGetCursorNameW(
void* hstmt,
WORD* szCursor, // optional
SHORT cchCursorMax,
SHORT* pcchCursor // optional
);[DllImport("ODBC32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern short SQLGetCursorNameW(
IntPtr hstmt, // void* in/out
IntPtr szCursor, // WORD* optional, out
short cchCursorMax, // SHORT
IntPtr pcchCursor // SHORT* optional, out
);<DllImport("ODBC32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SQLGetCursorNameW(
hstmt As IntPtr, ' void* in/out
szCursor As IntPtr, ' WORD* optional, out
cchCursorMax As Short, ' SHORT
pcchCursor As IntPtr ' SHORT* optional, out
) As Short
End Function' hstmt : void* in/out
' szCursor : WORD* optional, out
' cchCursorMax : SHORT
' pcchCursor : SHORT* optional, out
Declare PtrSafe Function SQLGetCursorNameW Lib "odbc32" ( _
ByVal hstmt As LongPtr, _
ByVal szCursor As LongPtr, _
ByVal cchCursorMax As Integer, _
ByVal pcchCursor As LongPtr) As Integer
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
SQLGetCursorNameW = ctypes.windll.odbc32.SQLGetCursorNameW
SQLGetCursorNameW.restype = ctypes.c_short
SQLGetCursorNameW.argtypes = [
ctypes.POINTER(None), # hstmt : void* in/out
ctypes.POINTER(ctypes.c_ushort), # szCursor : WORD* optional, out
ctypes.c_short, # cchCursorMax : SHORT
ctypes.POINTER(ctypes.c_short), # pcchCursor : SHORT* optional, out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('ODBC32.dll')
SQLGetCursorNameW = Fiddle::Function.new(
lib['SQLGetCursorNameW'],
[
Fiddle::TYPE_VOIDP, # hstmt : void* in/out
Fiddle::TYPE_VOIDP, # szCursor : WORD* optional, out
Fiddle::TYPE_SHORT, # cchCursorMax : SHORT
Fiddle::TYPE_VOIDP, # pcchCursor : SHORT* optional, out
],
Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"#[link(name = "odbc32")]
extern "system" {
fn SQLGetCursorNameW(
hstmt: *mut (), // void* in/out
szCursor: *mut u16, // WORD* optional, out
cchCursorMax: i16, // SHORT
pcchCursor: *mut i16 // SHORT* optional, out
) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Unicode)]
public static extern short SQLGetCursorNameW(IntPtr hstmt, IntPtr szCursor, short cchCursorMax, IntPtr pcchCursor);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetCursorNameW' -Namespace Win32 -PassThru
# $api::SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor)#uselib "ODBC32.dll"
#func global SQLGetCursorNameW "SQLGetCursorNameW" wptr, wptr, wptr, wptr
; SQLGetCursorNameW hstmt, varptr(szCursor), cchCursorMax, varptr(pcchCursor) ; 戻り値は stat
; hstmt : void* in/out -> "wptr"
; szCursor : WORD* optional, out -> "wptr"
; cchCursorMax : SHORT -> "wptr"
; pcchCursor : SHORT* optional, out -> "wptr"
; ※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 SQLGetCursorNameW "SQLGetCursorNameW" sptr, var, int, var ; res = SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor) ; hstmt : void* in/out -> "sptr" ; szCursor : WORD* optional, out -> "var" ; cchCursorMax : SHORT -> "int" ; pcchCursor : SHORT* optional, 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 SQLGetCursorNameW "SQLGetCursorNameW" sptr, sptr, int, sptr ; res = SQLGetCursorNameW(hstmt, varptr(szCursor), cchCursorMax, varptr(pcchCursor)) ; hstmt : void* in/out -> "sptr" ; szCursor : WORD* optional, out -> "sptr" ; cchCursorMax : SHORT -> "int" ; pcchCursor : SHORT* optional, 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 SQLGetCursorNameW(void* hstmt, WORD* szCursor, SHORT cchCursorMax, SHORT* pcchCursor) #uselib "ODBC32.dll" #cfunc global SQLGetCursorNameW "SQLGetCursorNameW" intptr, var, int, var ; res = SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor) ; hstmt : void* in/out -> "intptr" ; szCursor : WORD* optional, out -> "var" ; cchCursorMax : SHORT -> "int" ; pcchCursor : SHORT* optional, 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 SQLGetCursorNameW(void* hstmt, WORD* szCursor, SHORT cchCursorMax, SHORT* pcchCursor) #uselib "ODBC32.dll" #cfunc global SQLGetCursorNameW "SQLGetCursorNameW" intptr, intptr, int, intptr ; res = SQLGetCursorNameW(hstmt, varptr(szCursor), cchCursorMax, varptr(pcchCursor)) ; hstmt : void* in/out -> "intptr" ; szCursor : WORD* optional, out -> "intptr" ; cchCursorMax : SHORT -> "int" ; pcchCursor : SHORT* optional, 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")
procSQLGetCursorNameW = odbc32.NewProc("SQLGetCursorNameW")
)
// hstmt (void* in/out), szCursor (WORD* optional, out), cchCursorMax (SHORT), pcchCursor (SHORT* optional, out)
r1, _, err := procSQLGetCursorNameW.Call(
uintptr(hstmt),
uintptr(szCursor),
uintptr(cchCursorMax),
uintptr(pcchCursor),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // SHORTfunction SQLGetCursorNameW(
hstmt: Pointer; // void* in/out
szCursor: Pointer; // WORD* optional, out
cchCursorMax: Smallint; // SHORT
pcchCursor: Pointer // SHORT* optional, out
): Smallint; stdcall;
external 'ODBC32.dll' name 'SQLGetCursorNameW';result := DllCall("ODBC32\SQLGetCursorNameW"
, "Ptr", hstmt ; void* in/out
, "Ptr", szCursor ; WORD* optional, out
, "Short", cchCursorMax ; SHORT
, "Ptr", pcchCursor ; SHORT* optional, out
, "Short") ; return: SHORT●SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor) = DLL("ODBC32.dll", "int SQLGetCursorNameW(void*, void*, int, void*)")
# 呼び出し: SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor)
# hstmt : void* in/out -> "void*"
# szCursor : WORD* optional, out -> "void*"
# cchCursorMax : SHORT -> "int"
# pcchCursor : SHORT* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。const std = @import("std");
extern "odbc32" fn SQLGetCursorNameW(
hstmt: ?*anyopaque, // void* in/out
szCursor: [*c]u16, // WORD* optional, out
cchCursorMax: i16, // SHORT
pcchCursor: [*c]i16 // SHORT* optional, out
) callconv(std.os.windows.WINAPI) i16;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。proc SQLGetCursorNameW(
hstmt: pointer, # void* in/out
szCursor: ptr uint16, # WORD* optional, out
cchCursorMax: int16, # SHORT
pcchCursor: ptr int16 # SHORT* optional, out
): int16 {.importc: "SQLGetCursorNameW", stdcall, dynlib: "ODBC32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。pragma(lib, "odbc32");
extern(Windows)
short SQLGetCursorNameW(
void* hstmt, // void* in/out
ushort* szCursor, // WORD* optional, out
short cchCursorMax, // SHORT
short* pcchCursor // SHORT* optional, out
);ccall((:SQLGetCursorNameW, "ODBC32.dll"), stdcall, Int16,
(Ptr{Cvoid}, Ptr{UInt16}, Int16, Ptr{Int16}),
hstmt, szCursor, cchCursorMax, pcchCursor)
# hstmt : void* in/out -> Ptr{Cvoid}
# szCursor : WORD* optional, out -> Ptr{UInt16}
# cchCursorMax : SHORT -> Int16
# pcchCursor : SHORT* optional, out -> Ptr{Int16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。local ffi = require("ffi")
ffi.cdef[[
int16_t SQLGetCursorNameW(
void* hstmt,
uint16_t* szCursor,
int16_t cchCursorMax,
int16_t* pcchCursor);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor)
-- hstmt : void* in/out
-- szCursor : WORD* optional, out
-- cchCursorMax : SHORT
-- pcchCursor : SHORT* optional, 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。const koffi = require('koffi');
const lib = koffi.load('ODBC32.dll');
const SQLGetCursorNameW = lib.func('__stdcall', 'SQLGetCursorNameW', 'int16_t', ['void *', 'uint16_t *', 'int16_t', 'int16_t *']);
// SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor)
// hstmt : void* in/out -> 'void *'
// szCursor : WORD* optional, out -> 'uint16_t *'
// cchCursorMax : SHORT -> 'int16_t'
// pcchCursor : SHORT* optional, 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", {
SQLGetCursorNameW: { parameters: ["pointer", "pointer", "i16", "pointer"], result: "i16" },
});
// lib.symbols.SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor)
// hstmt : void* in/out -> "pointer"
// szCursor : WORD* optional, out -> "pointer"
// cchCursorMax : SHORT -> "i16"
// pcchCursor : SHORT* optional, out -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 SQLGetCursorNameW(
void* hstmt,
uint16_t* szCursor,
int16_t cchCursorMax,
int16_t* pcchCursor);
C, "ODBC32.dll");
// $ffi->SQLGetCursorNameW(hstmt, szCursor, cchCursorMax, pcchCursor);
// hstmt : void* in/out
// szCursor : WORD* optional, out
// cchCursorMax : SHORT
// pcchCursor : SHORT* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Odbc32 extends StdCallLibrary {
Odbc32 INSTANCE = Native.load("odbc32", Odbc32.class, W32APIOptions.UNICODE_OPTIONS);
short SQLGetCursorNameW(
Pointer hstmt, // void* in/out
ShortByReference szCursor, // WORD* optional, out
short cchCursorMax, // SHORT
ShortByReference pcchCursor // SHORT* optional, out
);
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。@[Link("odbc32")]
lib LibODBC32
fun SQLGetCursorNameW = SQLGetCursorNameW(
hstmt : Void*, # void* in/out
szCursor : UInt16*, # WORD* optional, out
cchCursorMax : Int16, # SHORT
pcchCursor : Int16* # SHORT* optional, out
) : Int16
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef SQLGetCursorNameWNative = Int16 Function(Pointer<Void>, Pointer<Uint16>, Int16, Pointer<Int16>);
typedef SQLGetCursorNameWDart = int Function(Pointer<Void>, Pointer<Uint16>, int, Pointer<Int16>);
final SQLGetCursorNameW = DynamicLibrary.open('ODBC32.dll')
.lookupFunction<SQLGetCursorNameWNative, SQLGetCursorNameWDart>('SQLGetCursorNameW');
// hstmt : void* in/out -> Pointer<Void>
// szCursor : WORD* optional, out -> Pointer<Uint16>
// cchCursorMax : SHORT -> Int16
// pcchCursor : SHORT* optional, out -> Pointer<Int16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function SQLGetCursorNameW(
hstmt: Pointer; // void* in/out
szCursor: Pointer; // WORD* optional, out
cchCursorMax: Smallint; // SHORT
pcchCursor: Pointer // SHORT* optional, out
): Smallint; stdcall;
external 'ODBC32.dll' name 'SQLGetCursorNameW';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "SQLGetCursorNameW"
c_SQLGetCursorNameW :: Ptr () -> Ptr Word16 -> Int16 -> Ptr Int16 -> IO Int16
-- hstmt : void* in/out -> Ptr ()
-- szCursor : WORD* optional, out -> Ptr Word16
-- cchCursorMax : SHORT -> Int16
-- pcchCursor : SHORT* optional, 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 sqlgetcursornamew =
foreign "SQLGetCursorNameW"
((ptr void) @-> (ptr uint16_t) @-> int16_t @-> (ptr int16_t) @-> returning int16_t)
(* hstmt : void* in/out -> (ptr void) *)
(* szCursor : WORD* optional, out -> (ptr uint16_t) *)
(* cchCursorMax : SHORT -> int16_t *)
(* pcchCursor : SHORT* optional, 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 ("SQLGetCursorNameW" sqlget-cursor-name-w :convention :stdcall) :int16
(hstmt :pointer) ; void* in/out
(sz-cursor :pointer) ; WORD* optional, out
(cch-cursor-max :int16) ; SHORT
(pcch-cursor :pointer)) ; SHORT* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $SQLGetCursorNameW = Win32::API::More->new('ODBC32',
'short SQLGetCursorNameW(LPVOID hstmt, LPVOID szCursor, short cchCursorMax, LPVOID pcchCursor)');
# my $ret = $SQLGetCursorNameW->Call($hstmt, $szCursor, $cchCursorMax, $pcchCursor);
# hstmt : void* in/out -> LPVOID
# szCursor : WORD* optional, out -> LPVOID
# cchCursorMax : SHORT -> short
# pcchCursor : SHORT* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。関連項目
文字セット違い
- f SQLGetCursorNameA (ANSI版) — ステートメントのカーソル名を取得する(ANSI)。