SQLSetStmtAttrW

// ODBC32.dll  (Unicode / -W)
#include <windows.h>

SHORT SQLSetStmtAttrW(
    void* hstmt,
    INT fAttribute,
    void* rgbValue,
    INT cbValueMax
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SQLSetStmtAttrW(
    hstmt As IntPtr,   ' void* in/out
    fAttribute As Integer,   ' INT
    rgbValue As IntPtr,   ' void* in/out
    cbValueMax As Integer   ' INT
) As Short
End Function

' hstmt : void* in/out
' fAttribute : INT
' rgbValue : void* in/out
' cbValueMax : INT
Declare PtrSafe Function SQLSetStmtAttrW Lib "odbc32" ( _
    ByVal hstmt As LongPtr, _
    ByVal fAttribute As Long, _
    ByVal rgbValue As LongPtr, _
    ByVal cbValueMax As Long) 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

SQLSetStmtAttrW = ctypes.windll.odbc32.SQLSetStmtAttrW
SQLSetStmtAttrW.restype = ctypes.c_short
SQLSetStmtAttrW.argtypes = [
    ctypes.POINTER(None),  # hstmt : void* in/out
    ctypes.c_int,  # fAttribute : INT
    ctypes.POINTER(None),  # rgbValue : void* in/out
    ctypes.c_int,  # cbValueMax : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLSetStmtAttrW = Fiddle::Function.new(
  lib['SQLSetStmtAttrW'],
  [
    Fiddle::TYPE_VOIDP,  # hstmt : void* in/out
    Fiddle::TYPE_INT,  # fAttribute : INT
    Fiddle::TYPE_VOIDP,  # rgbValue : void* in/out
    Fiddle::TYPE_INT,  # cbValueMax : INT
  ],
  Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "odbc32")]
extern "system" {
    fn SQLSetStmtAttrW(
        hstmt: *mut (),  // void* in/out
        fAttribute: i32,  // INT
        rgbValue: *mut (),  // void* in/out
        cbValueMax: i32  // INT
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Unicode)]
public static extern short SQLSetStmtAttrW(IntPtr hstmt, int fAttribute, IntPtr rgbValue, int cbValueMax);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLSetStmtAttrW' -Namespace Win32 -PassThru
# $api::SQLSetStmtAttrW(hstmt, fAttribute, rgbValue, cbValueMax)

#uselib "ODBC32.dll"
#func global SQLSetStmtAttrW "SQLSetStmtAttrW" wptr, wptr, wptr, wptr
; SQLSetStmtAttrW hstmt, fAttribute, rgbValue, cbValueMax   ; 戻り値は stat
; hstmt : void* in/out -> "wptr"
; fAttribute : INT -> "wptr"
; rgbValue : void* in/out -> "wptr"
; cbValueMax : INT -> "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。

#uselib "ODBC32.dll"
#cfunc global SQLSetStmtAttrW "SQLSetStmtAttrW" sptr, int, sptr, int
; res = SQLSetStmtAttrW(hstmt, fAttribute, rgbValue, cbValueMax)
; hstmt : void* in/out -> "sptr"
; fAttribute : INT -> "int"
; rgbValue : void* in/out -> "sptr"
; cbValueMax : INT -> "int"

; SHORT SQLSetStmtAttrW(void* hstmt, INT fAttribute, void* rgbValue, INT cbValueMax)
#uselib "ODBC32.dll"
#cfunc global SQLSetStmtAttrW "SQLSetStmtAttrW" intptr, int, intptr, int
; res = SQLSetStmtAttrW(hstmt, fAttribute, rgbValue, cbValueMax)
; hstmt : void* in/out -> "intptr"
; fAttribute : INT -> "int"
; rgbValue : void* in/out -> "intptr"
; cbValueMax : INT -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLSetStmtAttrW = odbc32.NewProc("SQLSetStmtAttrW")
)

// hstmt (void* in/out), fAttribute (INT), rgbValue (void* in/out), cbValueMax (INT)
r1, _, err := procSQLSetStmtAttrW.Call(
	uintptr(hstmt),
	uintptr(fAttribute),
	uintptr(rgbValue),
	uintptr(cbValueMax),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLSetStmtAttrW(
  hstmt: Pointer;   // void* in/out
  fAttribute: Integer;   // INT
  rgbValue: Pointer;   // void* in/out
  cbValueMax: Integer   // INT
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLSetStmtAttrW';

result := DllCall("ODBC32\SQLSetStmtAttrW"
    , "Ptr", hstmt   ; void* in/out
    , "Int", fAttribute   ; INT
    , "Ptr", rgbValue   ; void* in/out
    , "Int", cbValueMax   ; INT
    , "Short")   ; return: SHORT

●SQLSetStmtAttrW(hstmt, fAttribute, rgbValue, cbValueMax) = DLL("ODBC32.dll", "int SQLSetStmtAttrW(void*, int, void*, int)")
# 呼び出し: SQLSetStmtAttrW(hstmt, fAttribute, rgbValue, cbValueMax)
# hstmt : void* in/out -> "void*"
# fAttribute : INT -> "int"
# rgbValue : void* in/out -> "void*"
# cbValueMax : INT -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。