PropVariantToInt64WithDefault

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

LONGLONG PropVariantToInt64WithDefault(
    const PROPVARIANT* propvarIn,
    LONGLONG llDefault
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToInt64WithDefault(
    propvarIn As IntPtr,   ' PROPVARIANT*
    llDefault As Long   ' LONGLONG
) As Long
End Function

' propvarIn : PROPVARIANT*
' llDefault : LONGLONG
Declare PtrSafe Function PropVariantToInt64WithDefault Lib "propsys" ( _
    ByVal propvarIn As LongPtr, _
    ByVal llDefault As LongLong) As LongLong
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PropVariantToInt64WithDefault = ctypes.windll.propsys.PropVariantToInt64WithDefault
PropVariantToInt64WithDefault.restype = ctypes.c_longlong
PropVariantToInt64WithDefault.argtypes = [
    ctypes.c_void_p,  # propvarIn : PROPVARIANT*
    ctypes.c_longlong,  # llDefault : LONGLONG
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToInt64WithDefault = Fiddle::Function.new(
  lib['PropVariantToInt64WithDefault'],
  [
    Fiddle::TYPE_VOIDP,  # propvarIn : PROPVARIANT*
    Fiddle::TYPE_LONG_LONG,  # llDefault : LONGLONG
  ],
  Fiddle::TYPE_LONG_LONG)

#[link(name = "propsys")]
extern "system" {
    fn PropVariantToInt64WithDefault(
        propvarIn: *const PROPVARIANT,  // PROPVARIANT*
        llDefault: i64  // LONGLONG
    ) -> i64;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern long PropVariantToInt64WithDefault(IntPtr propvarIn, long llDefault);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToInt64WithDefault' -Namespace Win32 -PassThru
# $api::PropVariantToInt64WithDefault(propvarIn, llDefault)

#uselib "PROPSYS.dll"
#func global PropVariantToInt64WithDefault "PropVariantToInt64WithDefault" sptr, sptr
; PropVariantToInt64WithDefault varptr(propvarIn), llDefault   ; 戻り値は stat
; propvarIn : PROPVARIANT* -> "sptr"
; llDefault : LONGLONG -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "PROPSYS.dll"
#cfunc global PropVariantToInt64WithDefault "PropVariantToInt64WithDefault" var, int64
; res = PropVariantToInt64WithDefault(propvarIn, llDefault)
; propvarIn : PROPVARIANT* -> "var"
; llDefault : LONGLONG -> "int64"
; ※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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; LONGLONG PropVariantToInt64WithDefault(PROPVARIANT* propvarIn, LONGLONG llDefault)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToInt64WithDefault "PropVariantToInt64WithDefault" var, int64
; res = PropVariantToInt64WithDefault(propvarIn, llDefault)
; propvarIn : PROPVARIANT* -> "var"
; llDefault : LONGLONG -> "int64"
; ※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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPropVariantToInt64WithDefault = propsys.NewProc("PropVariantToInt64WithDefault")
)

// propvarIn (PROPVARIANT*), llDefault (LONGLONG)
r1, _, err := procPropVariantToInt64WithDefault.Call(
	uintptr(propvarIn),
	uintptr(llDefault),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LONGLONG

function PropVariantToInt64WithDefault(
  propvarIn: Pointer;   // PROPVARIANT*
  llDefault: Int64   // LONGLONG
): Int64; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToInt64WithDefault';

result := DllCall("PROPSYS\PropVariantToInt64WithDefault"
    , "Ptr", propvarIn   ; PROPVARIANT*
    , "Int64", llDefault   ; LONGLONG
    , "Int64")   ; return: LONGLONG

●PropVariantToInt64WithDefault(propvarIn, llDefault) = DLL("PROPSYS.dll", "int64 PropVariantToInt64WithDefault(void*, int64)")
# 呼び出し: PropVariantToInt64WithDefault(propvarIn, llDefault)
# propvarIn : PROPVARIANT* -> "void*"
# llDefault : LONGLONG -> "int64"
# 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)。