FreePropVariantArray

// OLE32.dll
#include <windows.h>

HRESULT FreePropVariantArray(
    DWORD cVariants,
    PROPVARIANT* rgvars
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function FreePropVariantArray(
    cVariants As UInteger,   ' DWORD
    rgvars As IntPtr   ' PROPVARIANT* in/out
) As Integer
End Function

' cVariants : DWORD
' rgvars : PROPVARIANT* in/out
Declare PtrSafe Function FreePropVariantArray Lib "ole32" ( _
    ByVal cVariants As Long, _
    ByVal rgvars As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FreePropVariantArray = ctypes.windll.ole32.FreePropVariantArray
FreePropVariantArray.restype = ctypes.c_int
FreePropVariantArray.argtypes = [
    wintypes.DWORD,  # cVariants : DWORD
    ctypes.c_void_p,  # rgvars : PROPVARIANT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
FreePropVariantArray = Fiddle::Function.new(
  lib['FreePropVariantArray'],
  [
    -Fiddle::TYPE_INT,  # cVariants : DWORD
    Fiddle::TYPE_VOIDP,  # rgvars : PROPVARIANT* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn FreePropVariantArray(
        cVariants: u32,  // DWORD
        rgvars: *mut PROPVARIANT  // PROPVARIANT* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int FreePropVariantArray(uint cVariants, IntPtr rgvars);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_FreePropVariantArray' -Namespace Win32 -PassThru
# $api::FreePropVariantArray(cVariants, rgvars)

#uselib "OLE32.dll"
#func global FreePropVariantArray "FreePropVariantArray" sptr, sptr
; FreePropVariantArray cVariants, varptr(rgvars)   ; 戻り値は stat
; cVariants : DWORD -> "sptr"
; rgvars : PROPVARIANT* 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 "OLE32.dll"
#cfunc global FreePropVariantArray "FreePropVariantArray" int, var
; res = FreePropVariantArray(cVariants, rgvars)
; cVariants : DWORD -> "int"
; rgvars : PROPVARIANT* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT FreePropVariantArray(DWORD cVariants, PROPVARIANT* rgvars)
#uselib "OLE32.dll"
#cfunc global FreePropVariantArray "FreePropVariantArray" int, var
; res = FreePropVariantArray(cVariants, rgvars)
; cVariants : DWORD -> "int"
; rgvars : PROPVARIANT* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procFreePropVariantArray = ole32.NewProc("FreePropVariantArray")
)

// cVariants (DWORD), rgvars (PROPVARIANT* in/out)
r1, _, err := procFreePropVariantArray.Call(
	uintptr(cVariants),
	uintptr(rgvars),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function FreePropVariantArray(
  cVariants: DWORD;   // DWORD
  rgvars: Pointer   // PROPVARIANT* in/out
): Integer; stdcall;
  external 'OLE32.dll' name 'FreePropVariantArray';

result := DllCall("OLE32\FreePropVariantArray"
    , "UInt", cVariants   ; DWORD
    , "Ptr", rgvars   ; PROPVARIANT* in/out
    , "Int")   ; return: HRESULT

●FreePropVariantArray(cVariants, rgvars) = DLL("OLE32.dll", "int FreePropVariantArray(dword, void*)")
# 呼び出し: FreePropVariantArray(cVariants, rgvars)
# cVariants : DWORD -> "dword"
# rgvars : PROPVARIANT* 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)。