SQLGetTypeInfoW

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

SHORT SQLGetTypeInfoW(
    void* StatementHandle,
    SHORT DataType
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SQLGetTypeInfoW(
    StatementHandle As IntPtr,   ' void* in/out
    DataType As Short   ' SHORT
) As Short
End Function

' StatementHandle : void* in/out
' DataType : SHORT
Declare PtrSafe Function SQLGetTypeInfoW Lib "odbc32" ( _
    ByVal StatementHandle As LongPtr, _
    ByVal DataType As Integer) 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

SQLGetTypeInfoW = ctypes.windll.odbc32.SQLGetTypeInfoW
SQLGetTypeInfoW.restype = ctypes.c_short
SQLGetTypeInfoW.argtypes = [
    ctypes.POINTER(None),  # StatementHandle : void* in/out
    ctypes.c_short,  # DataType : SHORT
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "odbc32")]
extern "system" {
    fn SQLGetTypeInfoW(
        StatementHandle: *mut (),  // void* in/out
        DataType: i16  // SHORT
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Unicode)]
public static extern short SQLGetTypeInfoW(IntPtr StatementHandle, short DataType);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLGetTypeInfoW' -Namespace Win32 -PassThru
# $api::SQLGetTypeInfoW(StatementHandle, DataType)

#uselib "ODBC32.dll"
#func global SQLGetTypeInfoW "SQLGetTypeInfoW" wptr, wptr
; SQLGetTypeInfoW StatementHandle, DataType   ; 戻り値は stat
; StatementHandle : void* in/out -> "wptr"
; DataType : SHORT -> "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 SQLGetTypeInfoW "SQLGetTypeInfoW" sptr, int
; res = SQLGetTypeInfoW(StatementHandle, DataType)
; StatementHandle : void* in/out -> "sptr"
; DataType : SHORT -> "int"

; SHORT SQLGetTypeInfoW(void* StatementHandle, SHORT DataType)
#uselib "ODBC32.dll"
#cfunc global SQLGetTypeInfoW "SQLGetTypeInfoW" intptr, int
; res = SQLGetTypeInfoW(StatementHandle, DataType)
; StatementHandle : void* in/out -> "intptr"
; DataType : SHORT -> "int"

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLGetTypeInfoW = odbc32.NewProc("SQLGetTypeInfoW")
)

// StatementHandle (void* in/out), DataType (SHORT)
r1, _, err := procSQLGetTypeInfoW.Call(
	uintptr(StatementHandle),
	uintptr(DataType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLGetTypeInfoW(
  StatementHandle: Pointer;   // void* in/out
  DataType: Smallint   // SHORT
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLGetTypeInfoW';

result := DllCall("ODBC32\SQLGetTypeInfoW"
    , "Ptr", StatementHandle   ; void* in/out
    , "Short", DataType   ; SHORT
    , "Short")   ; return: SHORT

●SQLGetTypeInfoW(StatementHandle, DataType) = DLL("ODBC32.dll", "int SQLGetTypeInfoW(void*, int)")
# 呼び出し: SQLGetTypeInfoW(StatementHandle, DataType)
# StatementHandle : void* in/out -> "void*"
# DataType : SHORT -> "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。