SafeArrayCreateVector

// OLEAUT32.dll
#include <windows.h>

SAFEARRAY* SafeArrayCreateVector(
    VARENUM vt,
    INT lLbound,
    DWORD cElements
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function SafeArrayCreateVector(
    vt As UShort,   ' VARENUM
    lLbound As Integer,   ' INT
    cElements As UInteger   ' DWORD
) As IntPtr
End Function

' vt : VARENUM
' lLbound : INT
' cElements : DWORD
Declare PtrSafe Function SafeArrayCreateVector Lib "oleaut32" ( _
    ByVal vt As Integer, _
    ByVal lLbound As Long, _
    ByVal cElements As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SafeArrayCreateVector = ctypes.windll.oleaut32.SafeArrayCreateVector
SafeArrayCreateVector.restype = ctypes.c_void_p
SafeArrayCreateVector.argtypes = [
    ctypes.c_ushort,  # vt : VARENUM
    ctypes.c_int,  # lLbound : INT
    wintypes.DWORD,  # cElements : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
SafeArrayCreateVector = Fiddle::Function.new(
  lib['SafeArrayCreateVector'],
  [
    -Fiddle::TYPE_SHORT,  # vt : VARENUM
    Fiddle::TYPE_INT,  # lLbound : INT
    -Fiddle::TYPE_INT,  # cElements : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "oleaut32")]
extern "system" {
    fn SafeArrayCreateVector(
        vt: u16,  // VARENUM
        lLbound: i32,  // INT
        cElements: u32  // DWORD
    ) -> *mut SAFEARRAY;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern IntPtr SafeArrayCreateVector(ushort vt, int lLbound, uint cElements);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_SafeArrayCreateVector' -Namespace Win32 -PassThru
# $api::SafeArrayCreateVector(vt, lLbound, cElements)

#uselib "OLEAUT32.dll"
#func global SafeArrayCreateVector "SafeArrayCreateVector" sptr, sptr, sptr
; SafeArrayCreateVector vt, lLbound, cElements   ; 戻り値は stat
; vt : VARENUM -> "sptr"
; lLbound : INT -> "sptr"
; cElements : DWORD -> "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 "OLEAUT32.dll"
#cfunc global SafeArrayCreateVector "SafeArrayCreateVector" int, int, int
; res = SafeArrayCreateVector(vt, lLbound, cElements)
; vt : VARENUM -> "int"
; lLbound : INT -> "int"
; cElements : DWORD -> "int"

; SAFEARRAY* SafeArrayCreateVector(VARENUM vt, INT lLbound, DWORD cElements)
#uselib "OLEAUT32.dll"
#cfunc global SafeArrayCreateVector "SafeArrayCreateVector" int, int, int
; res = SafeArrayCreateVector(vt, lLbound, cElements)
; vt : VARENUM -> "int"
; lLbound : INT -> "int"
; cElements : DWORD -> "int"

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procSafeArrayCreateVector = oleaut32.NewProc("SafeArrayCreateVector")
)

// vt (VARENUM), lLbound (INT), cElements (DWORD)
r1, _, err := procSafeArrayCreateVector.Call(
	uintptr(vt),
	uintptr(lLbound),
	uintptr(cElements),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SAFEARRAY*

function SafeArrayCreateVector(
  vt: Word;   // VARENUM
  lLbound: Integer;   // INT
  cElements: DWORD   // DWORD
): Pointer; stdcall;
  external 'OLEAUT32.dll' name 'SafeArrayCreateVector';

result := DllCall("OLEAUT32\SafeArrayCreateVector"
    , "UShort", vt   ; VARENUM
    , "Int", lLbound   ; INT
    , "UInt", cElements   ; DWORD
    , "Ptr")   ; return: SAFEARRAY*

●SafeArrayCreateVector(vt, lLbound, cElements) = DLL("OLEAUT32.dll", "void* SafeArrayCreateVector(int, int, dword)")
# 呼び出し: SafeArrayCreateVector(vt, lLbound, cElements)
# vt : VARENUM -> "int"
# lLbound : INT -> "int"
# cElements : DWORD -> "dword"
# 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)。