PropVariantToStrRet

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

HRESULT PropVariantToStrRet(
    const PROPVARIANT* propvar,
    STRRET* pstrret
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToStrRet(
    propvar As IntPtr,   ' PROPVARIANT*
    pstrret As IntPtr   ' STRRET* out
) As Integer
End Function

' propvar : PROPVARIANT*
' pstrret : STRRET* out
Declare PtrSafe Function PropVariantToStrRet Lib "propsys" ( _
    ByVal propvar As LongPtr, _
    ByVal pstrret 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

PropVariantToStrRet = ctypes.windll.propsys.PropVariantToStrRet
PropVariantToStrRet.restype = ctypes.c_int
PropVariantToStrRet.argtypes = [
    ctypes.c_void_p,  # propvar : PROPVARIANT*
    ctypes.c_void_p,  # pstrret : STRRET* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToStrRet = Fiddle::Function.new(
  lib['PropVariantToStrRet'],
  [
    Fiddle::TYPE_VOIDP,  # propvar : PROPVARIANT*
    Fiddle::TYPE_VOIDP,  # pstrret : STRRET* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn PropVariantToStrRet(
        propvar: *const PROPVARIANT,  // PROPVARIANT*
        pstrret: *mut STRRET  // STRRET* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PropVariantToStrRet(IntPtr propvar, IntPtr pstrret);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToStrRet' -Namespace Win32 -PassThru
# $api::PropVariantToStrRet(propvar, pstrret)

#uselib "PROPSYS.dll"
#func global PropVariantToStrRet "PropVariantToStrRet" sptr, sptr
; PropVariantToStrRet varptr(propvar), varptr(pstrret)   ; 戻り値は stat
; propvar : PROPVARIANT* -> "sptr"
; pstrret : STRRET* 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 "PROPSYS.dll"
#cfunc global PropVariantToStrRet "PropVariantToStrRet" var, var
; res = PropVariantToStrRet(propvar, pstrret)
; propvar : PROPVARIANT* -> "var"
; pstrret : STRRET* 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 PropVariantToStrRet(PROPVARIANT* propvar, STRRET* pstrret)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToStrRet "PropVariantToStrRet" var, var
; res = PropVariantToStrRet(propvar, pstrret)
; propvar : PROPVARIANT* -> "var"
; pstrret : STRRET* 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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPropVariantToStrRet = propsys.NewProc("PropVariantToStrRet")
)

// propvar (PROPVARIANT*), pstrret (STRRET* out)
r1, _, err := procPropVariantToStrRet.Call(
	uintptr(propvar),
	uintptr(pstrret),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PropVariantToStrRet(
  propvar: Pointer;   // PROPVARIANT*
  pstrret: Pointer   // STRRET* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToStrRet';

result := DllCall("PROPSYS\PropVariantToStrRet"
    , "Ptr", propvar   ; PROPVARIANT*
    , "Ptr", pstrret   ; STRRET* out
    , "Int")   ; return: HRESULT

●PropVariantToStrRet(propvar, pstrret) = DLL("PROPSYS.dll", "int PropVariantToStrRet(void*, void*)")
# 呼び出し: PropVariantToStrRet(propvar, pstrret)
# propvar : PROPVARIANT* -> "void*"
# pstrret : STRRET* 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)。