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SQLGetCursorNameA
関数ステートメントのカーソル名を取得する(ANSI)。
シグネチャ
// ODBC32.dll (ANSI / -A)
#include <windows.h>
SHORT SQLGetCursorNameA(
void* hstmt,
BYTE* szCursor, // optional
SHORT cbCursorMax,
SHORT* pcbCursor // optional
);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。カーソル名取得対象。 |
| szCursor | BYTE* | outoptional | カーソル名を受け取るバッファ。出力用。 |
| cbCursorMax | SHORT | in | szCursorバッファのバイト長。 |
| pcbCursor | SHORT* | outoptional | 実際に返されたカーソル名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 SQLGetCursorNameA(
void* hstmt,
BYTE* szCursor, // optional
SHORT cbCursorMax,
SHORT* pcbCursor // optional
);[DllImport("ODBC32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern short SQLGetCursorNameA(
IntPtr hstmt, // void* in/out
IntPtr szCursor, // BYTE* optional, out
short cbCursorMax, // SHORT
IntPtr pcbCursor // SHORT* optional, out
);<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLGetCursorNameA(
hstmt As IntPtr, ' void* in/out
szCursor As IntPtr, ' BYTE* optional, out
cbCursorMax As Short, ' SHORT
pcbCursor As IntPtr ' SHORT* optional, out
) As Short
End Function' hstmt : void* in/out
' szCursor : BYTE* optional, out
' cbCursorMax : SHORT
' pcbCursor : SHORT* optional, out
Declare PtrSafe Function SQLGetCursorNameA Lib "odbc32" ( _
ByVal hstmt As LongPtr, _
ByVal szCursor As LongPtr, _
ByVal cbCursorMax As Integer, _
ByVal pcbCursor As LongPtr) As Integer
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
SQLGetCursorNameA = ctypes.windll.odbc32.SQLGetCursorNameA
SQLGetCursorNameA.restype = ctypes.c_short
SQLGetCursorNameA.argtypes = [
ctypes.POINTER(None), # hstmt : void* in/out
ctypes.POINTER(ctypes.c_ubyte), # szCursor : BYTE* optional, out
ctypes.c_short, # cbCursorMax : SHORT
ctypes.POINTER(ctypes.c_short), # pcbCursor : SHORT* optional, out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('ODBC32.dll')
SQLGetCursorNameA = Fiddle::Function.new(
lib['SQLGetCursorNameA'],
[
Fiddle::TYPE_VOIDP, # hstmt : void* in/out
Fiddle::TYPE_VOIDP, # szCursor : BYTE* optional, out
Fiddle::TYPE_SHORT, # cbCursorMax : SHORT
Fiddle::TYPE_VOIDP, # pcbCursor : SHORT* optional, out
],
Fiddle::TYPE_SHORT)#[link(name = "odbc32")]
extern "system" {
fn SQLGetCursorNameA(
hstmt: *mut (), // void* in/out
szCursor: *mut u8, // BYTE* optional, out
cbCursorMax: i16, // SHORT
pcbCursor: *mut i16 // SHORT* optional, out
) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLGetCursorNameA(IntPtr hstmt, IntPtr szCursor, short cbCursorMax, IntPtr pcbCursor);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetCursorNameA' -Namespace Win32 -PassThru
# $api::SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor)#uselib "ODBC32.dll"
#func global SQLGetCursorNameA "SQLGetCursorNameA" sptr, sptr, sptr, sptr
; SQLGetCursorNameA hstmt, varptr(szCursor), cbCursorMax, varptr(pcbCursor) ; 戻り値は stat
; hstmt : void* in/out -> "sptr"
; szCursor : BYTE* optional, out -> "sptr"
; cbCursorMax : SHORT -> "sptr"
; pcbCursor : SHORT* optional, 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 SQLGetCursorNameA "SQLGetCursorNameA" sptr, var, int, var ; res = SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor) ; hstmt : void* in/out -> "sptr" ; szCursor : BYTE* optional, out -> "var" ; cbCursorMax : SHORT -> "int" ; pcbCursor : 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 SQLGetCursorNameA "SQLGetCursorNameA" sptr, sptr, int, sptr ; res = SQLGetCursorNameA(hstmt, varptr(szCursor), cbCursorMax, varptr(pcbCursor)) ; hstmt : void* in/out -> "sptr" ; szCursor : BYTE* optional, out -> "sptr" ; cbCursorMax : SHORT -> "int" ; pcbCursor : 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 SQLGetCursorNameA(void* hstmt, BYTE* szCursor, SHORT cbCursorMax, SHORT* pcbCursor) #uselib "ODBC32.dll" #cfunc global SQLGetCursorNameA "SQLGetCursorNameA" intptr, var, int, var ; res = SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor) ; hstmt : void* in/out -> "intptr" ; szCursor : BYTE* optional, out -> "var" ; cbCursorMax : SHORT -> "int" ; pcbCursor : 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 SQLGetCursorNameA(void* hstmt, BYTE* szCursor, SHORT cbCursorMax, SHORT* pcbCursor) #uselib "ODBC32.dll" #cfunc global SQLGetCursorNameA "SQLGetCursorNameA" intptr, intptr, int, intptr ; res = SQLGetCursorNameA(hstmt, varptr(szCursor), cbCursorMax, varptr(pcbCursor)) ; hstmt : void* in/out -> "intptr" ; szCursor : BYTE* optional, out -> "intptr" ; cbCursorMax : SHORT -> "int" ; pcbCursor : 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")
procSQLGetCursorNameA = odbc32.NewProc("SQLGetCursorNameA")
)
// hstmt (void* in/out), szCursor (BYTE* optional, out), cbCursorMax (SHORT), pcbCursor (SHORT* optional, out)
r1, _, err := procSQLGetCursorNameA.Call(
uintptr(hstmt),
uintptr(szCursor),
uintptr(cbCursorMax),
uintptr(pcbCursor),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // SHORTfunction SQLGetCursorNameA(
hstmt: Pointer; // void* in/out
szCursor: Pointer; // BYTE* optional, out
cbCursorMax: Smallint; // SHORT
pcbCursor: Pointer // SHORT* optional, out
): Smallint; stdcall;
external 'ODBC32.dll' name 'SQLGetCursorNameA';result := DllCall("ODBC32\SQLGetCursorNameA"
, "Ptr", hstmt ; void* in/out
, "Ptr", szCursor ; BYTE* optional, out
, "Short", cbCursorMax ; SHORT
, "Ptr", pcbCursor ; SHORT* optional, out
, "Short") ; return: SHORT●SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor) = DLL("ODBC32.dll", "int SQLGetCursorNameA(void*, void*, int, void*)")
# 呼び出し: SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor)
# hstmt : void* in/out -> "void*"
# szCursor : BYTE* optional, out -> "void*"
# cbCursorMax : SHORT -> "int"
# pcbCursor : 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)。const std = @import("std");
extern "odbc32" fn SQLGetCursorNameA(
hstmt: ?*anyopaque, // void* in/out
szCursor: [*c]u8, // BYTE* optional, out
cbCursorMax: i16, // SHORT
pcbCursor: [*c]i16 // SHORT* optional, out
) callconv(std.os.windows.WINAPI) i16;proc SQLGetCursorNameA(
hstmt: pointer, # void* in/out
szCursor: ptr uint8, # BYTE* optional, out
cbCursorMax: int16, # SHORT
pcbCursor: ptr int16 # SHORT* optional, out
): int16 {.importc: "SQLGetCursorNameA", stdcall, dynlib: "ODBC32.dll".}pragma(lib, "odbc32");
extern(Windows)
short SQLGetCursorNameA(
void* hstmt, // void* in/out
ubyte* szCursor, // BYTE* optional, out
short cbCursorMax, // SHORT
short* pcbCursor // SHORT* optional, out
);ccall((:SQLGetCursorNameA, "ODBC32.dll"), stdcall, Int16,
(Ptr{Cvoid}, Ptr{UInt8}, Int16, Ptr{Int16}),
hstmt, szCursor, cbCursorMax, pcbCursor)
# hstmt : void* in/out -> Ptr{Cvoid}
# szCursor : BYTE* optional, out -> Ptr{UInt8}
# cbCursorMax : SHORT -> Int16
# pcbCursor : SHORT* optional, 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 SQLGetCursorNameA(
void* hstmt,
uint8_t* szCursor,
int16_t cbCursorMax,
int16_t* pcbCursor);
]]
local odbc32 = ffi.load("odbc32")
-- odbc32.SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor)
-- hstmt : void* in/out
-- szCursor : BYTE* optional, out
-- cbCursorMax : SHORT
-- pcbCursor : 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。const koffi = require('koffi');
const lib = koffi.load('ODBC32.dll');
const SQLGetCursorNameA = lib.func('__stdcall', 'SQLGetCursorNameA', 'int16_t', ['void *', 'uint8_t *', 'int16_t', 'int16_t *']);
// SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor)
// hstmt : void* in/out -> 'void *'
// szCursor : BYTE* optional, out -> 'uint8_t *'
// cbCursorMax : SHORT -> 'int16_t'
// pcbCursor : 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", {
SQLGetCursorNameA: { parameters: ["pointer", "pointer", "i16", "pointer"], result: "i16" },
});
// lib.symbols.SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor)
// hstmt : void* in/out -> "pointer"
// szCursor : BYTE* optional, out -> "pointer"
// cbCursorMax : SHORT -> "i16"
// pcbCursor : SHORT* optional, 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 SQLGetCursorNameA(
void* hstmt,
uint8_t* szCursor,
int16_t cbCursorMax,
int16_t* pcbCursor);
C, "ODBC32.dll");
// $ffi->SQLGetCursorNameA(hstmt, szCursor, cbCursorMax, pcbCursor);
// hstmt : void* in/out
// szCursor : BYTE* optional, out
// cbCursorMax : SHORT
// pcbCursor : SHORT* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Odbc32 extends StdCallLibrary {
Odbc32 INSTANCE = Native.load("odbc32", Odbc32.class, W32APIOptions.ASCII_OPTIONS);
short SQLGetCursorNameA(
Pointer hstmt, // void* in/out
byte[] szCursor, // BYTE* optional, out
short cbCursorMax, // SHORT
ShortByReference pcbCursor // SHORT* optional, out
);
}@[Link("odbc32")]
lib LibODBC32
fun SQLGetCursorNameA = SQLGetCursorNameA(
hstmt : Void*, # void* in/out
szCursor : UInt8*, # BYTE* optional, out
cbCursorMax : Int16, # SHORT
pcbCursor : Int16* # SHORT* optional, out
) : Int16
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef SQLGetCursorNameANative = Int16 Function(Pointer<Void>, Pointer<Uint8>, Int16, Pointer<Int16>);
typedef SQLGetCursorNameADart = int Function(Pointer<Void>, Pointer<Uint8>, int, Pointer<Int16>);
final SQLGetCursorNameA = DynamicLibrary.open('ODBC32.dll')
.lookupFunction<SQLGetCursorNameANative, SQLGetCursorNameADart>('SQLGetCursorNameA');
// hstmt : void* in/out -> Pointer<Void>
// szCursor : BYTE* optional, out -> Pointer<Uint8>
// cbCursorMax : SHORT -> Int16
// pcbCursor : SHORT* optional, out -> Pointer<Int16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function SQLGetCursorNameA(
hstmt: Pointer; // void* in/out
szCursor: Pointer; // BYTE* optional, out
cbCursorMax: Smallint; // SHORT
pcbCursor: Pointer // SHORT* optional, out
): Smallint; stdcall;
external 'ODBC32.dll' name 'SQLGetCursorNameA';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "SQLGetCursorNameA"
c_SQLGetCursorNameA :: Ptr () -> Ptr Word8 -> Int16 -> Ptr Int16 -> IO Int16
-- hstmt : void* in/out -> Ptr ()
-- szCursor : BYTE* optional, out -> Ptr Word8
-- cbCursorMax : SHORT -> Int16
-- pcbCursor : 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 sqlgetcursornamea =
foreign "SQLGetCursorNameA"
((ptr void) @-> (ptr uint8_t) @-> int16_t @-> (ptr int16_t) @-> returning int16_t)
(* hstmt : void* in/out -> (ptr void) *)
(* szCursor : BYTE* optional, out -> (ptr uint8_t) *)
(* cbCursorMax : SHORT -> int16_t *)
(* pcbCursor : 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 ("SQLGetCursorNameA" sqlget-cursor-name-a :convention :stdcall) :int16
(hstmt :pointer) ; void* in/out
(sz-cursor :pointer) ; BYTE* optional, out
(cb-cursor-max :int16) ; SHORT
(pcb-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 $SQLGetCursorNameA = Win32::API::More->new('ODBC32',
'short SQLGetCursorNameA(LPVOID hstmt, LPVOID szCursor, short cbCursorMax, LPVOID pcbCursor)');
# my $ret = $SQLGetCursorNameA->Call($hstmt, $szCursor, $cbCursorMax, $pcbCursor);
# hstmt : void* in/out -> LPVOID
# szCursor : BYTE* optional, out -> LPVOID
# cbCursorMax : SHORT -> short
# pcbCursor : 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。関連項目
文字セット違い
- f SQLGetCursorNameW (Unicode版) — ステートメントのカーソル名を取得する(Unicode)。