PSStringFromPropertyKey

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

HRESULT PSStringFromPropertyKey(
    const PROPERTYKEY* pkey,
    LPWSTR psz,
    DWORD cch
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PSStringFromPropertyKey(
    pkey As IntPtr,   ' PROPERTYKEY*
    <MarshalAs(UnmanagedType.LPWStr)> psz As System.Text.StringBuilder,   ' LPWSTR out
    cch As UInteger   ' DWORD
) As Integer
End Function

' pkey : PROPERTYKEY*
' psz : LPWSTR out
' cch : DWORD
Declare PtrSafe Function PSStringFromPropertyKey Lib "propsys" ( _
    ByVal pkey As LongPtr, _
    ByVal psz As LongPtr, _
    ByVal cch As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PSStringFromPropertyKey = ctypes.windll.propsys.PSStringFromPropertyKey
PSStringFromPropertyKey.restype = ctypes.c_int
PSStringFromPropertyKey.argtypes = [
    ctypes.c_void_p,  # pkey : PROPERTYKEY*
    wintypes.LPWSTR,  # psz : LPWSTR out
    wintypes.DWORD,  # cch : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PSStringFromPropertyKey = Fiddle::Function.new(
  lib['PSStringFromPropertyKey'],
  [
    Fiddle::TYPE_VOIDP,  # pkey : PROPERTYKEY*
    Fiddle::TYPE_VOIDP,  # psz : LPWSTR out
    -Fiddle::TYPE_INT,  # cch : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn PSStringFromPropertyKey(
        pkey: *const PROPERTYKEY,  // PROPERTYKEY*
        psz: *mut u16,  // LPWSTR out
        cch: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PSStringFromPropertyKey(IntPtr pkey, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder psz, uint cch);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PSStringFromPropertyKey' -Namespace Win32 -PassThru
# $api::PSStringFromPropertyKey(pkey, psz, cch)

#uselib "PROPSYS.dll"
#func global PSStringFromPropertyKey "PSStringFromPropertyKey" sptr, sptr, sptr
; PSStringFromPropertyKey varptr(pkey), varptr(psz), cch   ; 戻り値は stat
; pkey : PROPERTYKEY* -> "sptr"
; psz : LPWSTR out -> "sptr"
; cch : 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 "PROPSYS.dll"
#cfunc global PSStringFromPropertyKey "PSStringFromPropertyKey" var, var, int
; res = PSStringFromPropertyKey(pkey, psz, cch)
; pkey : PROPERTYKEY* -> "var"
; psz : LPWSTR out -> "var"
; cch : DWORD -> "int"
; ※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 PSStringFromPropertyKey(PROPERTYKEY* pkey, LPWSTR psz, DWORD cch)
#uselib "PROPSYS.dll"
#cfunc global PSStringFromPropertyKey "PSStringFromPropertyKey" var, var, int
; res = PSStringFromPropertyKey(pkey, psz, cch)
; pkey : PROPERTYKEY* -> "var"
; psz : LPWSTR out -> "var"
; cch : DWORD -> "int"
; ※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")
	procPSStringFromPropertyKey = propsys.NewProc("PSStringFromPropertyKey")
)

// pkey (PROPERTYKEY*), psz (LPWSTR out), cch (DWORD)
r1, _, err := procPSStringFromPropertyKey.Call(
	uintptr(pkey),
	uintptr(psz),
	uintptr(cch),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PSStringFromPropertyKey(
  pkey: Pointer;   // PROPERTYKEY*
  psz: PWideChar;   // LPWSTR out
  cch: DWORD   // DWORD
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PSStringFromPropertyKey';

result := DllCall("PROPSYS\PSStringFromPropertyKey"
    , "Ptr", pkey   ; PROPERTYKEY*
    , "Ptr", psz   ; LPWSTR out
    , "UInt", cch   ; DWORD
    , "Int")   ; return: HRESULT

●PSStringFromPropertyKey(pkey, psz, cch) = DLL("PROPSYS.dll", "int PSStringFromPropertyKey(void*, char*, dword)")
# 呼び出し: PSStringFromPropertyKey(pkey, psz, cch)
# pkey : PROPERTYKEY* -> "void*"
# psz : LPWSTR out -> "char*"
# cch : 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)。