SQLGetConnectOption

// ODBC32.dll  (ANSI / -A)
#include <windows.h>

SHORT SQLGetConnectOption(
    void* ConnectionHandle,
    WORD Option,
    void* Value
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLGetConnectOption(
    ConnectionHandle As IntPtr,   ' void* in/out
    [Option] As UShort,   ' WORD
    Value As IntPtr   ' void* in/out
) As Short
End Function

' ConnectionHandle : void* in/out
' Option : WORD
' Value : void* in/out
Declare PtrSafe Function SQLGetConnectOption Lib "odbc32" ( _
    ByVal ConnectionHandle As LongPtr, _
    ByVal Option As Integer, _
    ByVal Value 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

SQLGetConnectOption = ctypes.windll.odbc32.SQLGetConnectOption
SQLGetConnectOption.restype = ctypes.c_short
SQLGetConnectOption.argtypes = [
    ctypes.POINTER(None),  # ConnectionHandle : void* in/out
    ctypes.c_ushort,  # Option : WORD
    ctypes.POINTER(None),  # Value : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLGetConnectOption = Fiddle::Function.new(
  lib['SQLGetConnectOption'],
  [
    Fiddle::TYPE_VOIDP,  # ConnectionHandle : void* in/out
    -Fiddle::TYPE_SHORT,  # Option : WORD
    Fiddle::TYPE_VOIDP,  # Value : void* in/out
  ],
  Fiddle::TYPE_SHORT)

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

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLGetConnectOption(IntPtr ConnectionHandle, ushort Option, IntPtr Value);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetConnectOption' -Namespace Win32 -PassThru
# $api::SQLGetConnectOption(ConnectionHandle, Option, Value)

#uselib "ODBC32.dll"
#func global SQLGetConnectOption "SQLGetConnectOption" sptr, sptr, sptr
; SQLGetConnectOption ConnectionHandle, Option, Value   ; 戻り値は stat
; ConnectionHandle : void* in/out -> "sptr"
; Option : WORD -> "sptr"
; Value : void* in/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。

#uselib "ODBC32.dll"
#cfunc global SQLGetConnectOption "SQLGetConnectOption" sptr, int, sptr
; res = SQLGetConnectOption(ConnectionHandle, Option, Value)
; ConnectionHandle : void* in/out -> "sptr"
; Option : WORD -> "int"
; Value : void* in/out -> "sptr"

; SHORT SQLGetConnectOption(void* ConnectionHandle, WORD Option, void* Value)
#uselib "ODBC32.dll"
#cfunc global SQLGetConnectOption "SQLGetConnectOption" intptr, int, intptr
; res = SQLGetConnectOption(ConnectionHandle, Option, Value)
; ConnectionHandle : void* in/out -> "intptr"
; Option : WORD -> "int"
; Value : void* in/out -> "intptr"

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLGetConnectOption = odbc32.NewProc("SQLGetConnectOption")
)

// ConnectionHandle (void* in/out), Option (WORD), Value (void* in/out)
r1, _, err := procSQLGetConnectOption.Call(
	uintptr(ConnectionHandle),
	uintptr(Option),
	uintptr(Value),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLGetConnectOption(
  ConnectionHandle: Pointer;   // void* in/out
  Option: Word;   // WORD
  Value: Pointer   // void* in/out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetConnectOption';

result := DllCall("ODBC32\SQLGetConnectOption"
    , "Ptr", ConnectionHandle   ; void* in/out
    , "UShort", Option   ; WORD
    , "Ptr", Value   ; void* in/out
    , "Short")   ; return: SHORT

●SQLGetConnectOption(ConnectionHandle, Option, Value) = DLL("ODBC32.dll", "int SQLGetConnectOption(void*, int, void*)")
# 呼び出し: SQLGetConnectOption(ConnectionHandle, Option, Value)
# ConnectionHandle : void* in/out -> "void*"
# Option : WORD -> "int"
# Value : 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)。