SQLGetConnectOptionW

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

SHORT SQLGetConnectOptionW(
    void* hdbc,
    WORD fOption,
    void* pvParam
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SQLGetConnectOptionW(
    hdbc As IntPtr,   ' void* in/out
    fOption As UShort,   ' WORD
    pvParam As IntPtr   ' void* in/out
) As Short
End Function

' hdbc : void* in/out
' fOption : WORD
' pvParam : void* in/out
Declare PtrSafe Function SQLGetConnectOptionW Lib "odbc32" ( _
    ByVal hdbc As LongPtr, _
    ByVal fOption As Integer, _
    ByVal pvParam 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

SQLGetConnectOptionW = ctypes.windll.odbc32.SQLGetConnectOptionW
SQLGetConnectOptionW.restype = ctypes.c_short
SQLGetConnectOptionW.argtypes = [
    ctypes.POINTER(None),  # hdbc : void* in/out
    ctypes.c_ushort,  # fOption : WORD
    ctypes.POINTER(None),  # pvParam : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLGetConnectOptionW = Fiddle::Function.new(
  lib['SQLGetConnectOptionW'],
  [
    Fiddle::TYPE_VOIDP,  # hdbc : void* in/out
    -Fiddle::TYPE_SHORT,  # fOption : WORD
    Fiddle::TYPE_VOIDP,  # pvParam : void* in/out
  ],
  Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "odbc32")]
extern "system" {
    fn SQLGetConnectOptionW(
        hdbc: *mut (),  // void* in/out
        fOption: u16,  // WORD
        pvParam: *mut ()  // void* in/out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Unicode)]
public static extern short SQLGetConnectOptionW(IntPtr hdbc, ushort fOption, IntPtr pvParam);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetConnectOptionW' -Namespace Win32 -PassThru
# $api::SQLGetConnectOptionW(hdbc, fOption, pvParam)

#uselib "ODBC32.dll"
#func global SQLGetConnectOptionW "SQLGetConnectOptionW" wptr, wptr, wptr
; SQLGetConnectOptionW hdbc, fOption, pvParam   ; 戻り値は stat
; hdbc : void* in/out -> "wptr"
; fOption : WORD -> "wptr"
; pvParam : void* in/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。

#uselib "ODBC32.dll"
#cfunc global SQLGetConnectOptionW "SQLGetConnectOptionW" sptr, int, sptr
; res = SQLGetConnectOptionW(hdbc, fOption, pvParam)
; hdbc : void* in/out -> "sptr"
; fOption : WORD -> "int"
; pvParam : void* in/out -> "sptr"

; SHORT SQLGetConnectOptionW(void* hdbc, WORD fOption, void* pvParam)
#uselib "ODBC32.dll"
#cfunc global SQLGetConnectOptionW "SQLGetConnectOptionW" intptr, int, intptr
; res = SQLGetConnectOptionW(hdbc, fOption, pvParam)
; hdbc : void* in/out -> "intptr"
; fOption : WORD -> "int"
; pvParam : void* in/out -> "intptr"

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLGetConnectOptionW = odbc32.NewProc("SQLGetConnectOptionW")
)

// hdbc (void* in/out), fOption (WORD), pvParam (void* in/out)
r1, _, err := procSQLGetConnectOptionW.Call(
	uintptr(hdbc),
	uintptr(fOption),
	uintptr(pvParam),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLGetConnectOptionW(
  hdbc: Pointer;   // void* in/out
  fOption: Word;   // WORD
  pvParam: Pointer   // void* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetConnectOptionW';

result := DllCall("ODBC32\SQLGetConnectOptionW"
    , "Ptr", hdbc   ; void* in/out
    , "UShort", fOption   ; WORD
    , "Ptr", pvParam   ; void* in/out
    , "Short")   ; return: SHORT

●SQLGetConnectOptionW(hdbc, fOption, pvParam) = DLL("ODBC32.dll", "int SQLGetConnectOptionW(void*, int, void*)")
# 呼び出し: SQLGetConnectOptionW(hdbc, fOption, pvParam)
# hdbc : void* in/out -> "void*"
# fOption : WORD -> "int"
# pvParam : void* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。