PssWalkSnapshot

// KERNEL32.dll
#include <windows.h>

DWORD PssWalkSnapshot(
    HPSS SnapshotHandle,
    PSS_WALK_INFORMATION_CLASS InformationClass,
    HPSSWALK WalkMarkerHandle,
    void* Buffer,   // optional
    DWORD BufferLength
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function PssWalkSnapshot(
    SnapshotHandle As IntPtr,   ' HPSS
    InformationClass As Integer,   ' PSS_WALK_INFORMATION_CLASS
    WalkMarkerHandle As IntPtr,   ' HPSSWALK
    Buffer As IntPtr,   ' void* optional, out
    BufferLength As UInteger   ' DWORD
) As UInteger
End Function

' SnapshotHandle : HPSS
' InformationClass : PSS_WALK_INFORMATION_CLASS
' WalkMarkerHandle : HPSSWALK
' Buffer : void* optional, out
' BufferLength : DWORD
Declare PtrSafe Function PssWalkSnapshot Lib "kernel32" ( _
    ByVal SnapshotHandle As LongPtr, _
    ByVal InformationClass As Long, _
    ByVal WalkMarkerHandle As LongPtr, _
    ByVal Buffer As LongPtr, _
    ByVal BufferLength 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

PssWalkSnapshot = ctypes.windll.kernel32.PssWalkSnapshot
PssWalkSnapshot.restype = wintypes.DWORD
PssWalkSnapshot.argtypes = [
    wintypes.HANDLE,  # SnapshotHandle : HPSS
    ctypes.c_int,  # InformationClass : PSS_WALK_INFORMATION_CLASS
    wintypes.HANDLE,  # WalkMarkerHandle : HPSSWALK
    ctypes.POINTER(None),  # Buffer : void* optional, out
    wintypes.DWORD,  # BufferLength : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
PssWalkSnapshot = Fiddle::Function.new(
  lib['PssWalkSnapshot'],
  [
    Fiddle::TYPE_VOIDP,  # SnapshotHandle : HPSS
    Fiddle::TYPE_INT,  # InformationClass : PSS_WALK_INFORMATION_CLASS
    Fiddle::TYPE_VOIDP,  # WalkMarkerHandle : HPSSWALK
    Fiddle::TYPE_VOIDP,  # Buffer : void* optional, out
    -Fiddle::TYPE_INT,  # BufferLength : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn PssWalkSnapshot(
        SnapshotHandle: *mut core::ffi::c_void,  // HPSS
        InformationClass: i32,  // PSS_WALK_INFORMATION_CLASS
        WalkMarkerHandle: *mut core::ffi::c_void,  // HPSSWALK
        Buffer: *mut (),  // void* optional, out
        BufferLength: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern uint PssWalkSnapshot(IntPtr SnapshotHandle, int InformationClass, IntPtr WalkMarkerHandle, IntPtr Buffer, uint BufferLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_PssWalkSnapshot' -Namespace Win32 -PassThru
# $api::PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)

#uselib "KERNEL32.dll"
#func global PssWalkSnapshot "PssWalkSnapshot" sptr, sptr, sptr, sptr, sptr
; PssWalkSnapshot SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength   ; 戻り値は stat
; SnapshotHandle : HPSS -> "sptr"
; InformationClass : PSS_WALK_INFORMATION_CLASS -> "sptr"
; WalkMarkerHandle : HPSSWALK -> "sptr"
; Buffer : void* optional, out -> "sptr"
; BufferLength : 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 "KERNEL32.dll"
#cfunc global PssWalkSnapshot "PssWalkSnapshot" sptr, int, sptr, sptr, int
; res = PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
; SnapshotHandle : HPSS -> "sptr"
; InformationClass : PSS_WALK_INFORMATION_CLASS -> "int"
; WalkMarkerHandle : HPSSWALK -> "sptr"
; Buffer : void* optional, out -> "sptr"
; BufferLength : DWORD -> "int"

; DWORD PssWalkSnapshot(HPSS SnapshotHandle, PSS_WALK_INFORMATION_CLASS InformationClass, HPSSWALK WalkMarkerHandle, void* Buffer, DWORD BufferLength)
#uselib "KERNEL32.dll"
#cfunc global PssWalkSnapshot "PssWalkSnapshot" intptr, int, intptr, intptr, int
; res = PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
; SnapshotHandle : HPSS -> "intptr"
; InformationClass : PSS_WALK_INFORMATION_CLASS -> "int"
; WalkMarkerHandle : HPSSWALK -> "intptr"
; Buffer : void* optional, out -> "intptr"
; BufferLength : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procPssWalkSnapshot = kernel32.NewProc("PssWalkSnapshot")
)

// SnapshotHandle (HPSS), InformationClass (PSS_WALK_INFORMATION_CLASS), WalkMarkerHandle (HPSSWALK), Buffer (void* optional, out), BufferLength (DWORD)
r1, _, err := procPssWalkSnapshot.Call(
	uintptr(SnapshotHandle),
	uintptr(InformationClass),
	uintptr(WalkMarkerHandle),
	uintptr(Buffer),
	uintptr(BufferLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PssWalkSnapshot(
  SnapshotHandle: THandle;   // HPSS
  InformationClass: Integer;   // PSS_WALK_INFORMATION_CLASS
  WalkMarkerHandle: THandle;   // HPSSWALK
  Buffer: Pointer;   // void* optional, out
  BufferLength: DWORD   // DWORD
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'PssWalkSnapshot';

result := DllCall("KERNEL32\PssWalkSnapshot"
    , "Ptr", SnapshotHandle   ; HPSS
    , "Int", InformationClass   ; PSS_WALK_INFORMATION_CLASS
    , "Ptr", WalkMarkerHandle   ; HPSSWALK
    , "Ptr", Buffer   ; void* optional, out
    , "UInt", BufferLength   ; DWORD
    , "UInt")   ; return: DWORD

●PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength) = DLL("KERNEL32.dll", "dword PssWalkSnapshot(void*, int, void*, void*, dword)")
# 呼び出し: PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
# SnapshotHandle : HPSS -> "void*"
# InformationClass : PSS_WALK_INFORMATION_CLASS -> "int"
# WalkMarkerHandle : HPSSWALK -> "void*"
# Buffer : void* optional, out -> "void*"
# BufferLength : 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)。

const std = @import("std");

extern "kernel32" fn PssWalkSnapshot(
    SnapshotHandle: ?*anyopaque, // HPSS
    InformationClass: i32, // PSS_WALK_INFORMATION_CLASS
    WalkMarkerHandle: ?*anyopaque, // HPSSWALK
    Buffer: ?*anyopaque, // void* optional, out
    BufferLength: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;

proc PssWalkSnapshot(
    SnapshotHandle: pointer,  # HPSS
    InformationClass: int32,  # PSS_WALK_INFORMATION_CLASS
    WalkMarkerHandle: pointer,  # HPSSWALK
    Buffer: pointer,  # void* optional, out
    BufferLength: uint32  # DWORD
): uint32 {.importc: "PssWalkSnapshot", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
uint PssWalkSnapshot(
    void* SnapshotHandle,   // HPSS
    int InformationClass,   // PSS_WALK_INFORMATION_CLASS
    void* WalkMarkerHandle,   // HPSSWALK
    void* Buffer,   // void* optional, out
    uint BufferLength   // DWORD
);

ccall((:PssWalkSnapshot, "KERNEL32.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Int32, Ptr{Cvoid}, Ptr{Cvoid}, UInt32),
      SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
# SnapshotHandle : HPSS -> Ptr{Cvoid}
# InformationClass : PSS_WALK_INFORMATION_CLASS -> Int32
# WalkMarkerHandle : HPSSWALK -> Ptr{Cvoid}
# Buffer : void* optional, out -> Ptr{Cvoid}
# BufferLength : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t PssWalkSnapshot(
    void* SnapshotHandle,
    int32_t InformationClass,
    void* WalkMarkerHandle,
    void* Buffer,
    uint32_t BufferLength);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
-- SnapshotHandle : HPSS
-- InformationClass : PSS_WALK_INFORMATION_CLASS
-- WalkMarkerHandle : HPSSWALK
-- Buffer : void* optional, out
-- BufferLength : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const PssWalkSnapshot = lib.func('__stdcall', 'PssWalkSnapshot', 'uint32_t', ['void *', 'int32_t', 'void *', 'void *', 'uint32_t']);
// PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
// SnapshotHandle : HPSS -> 'void *'
// InformationClass : PSS_WALK_INFORMATION_CLASS -> 'int32_t'
// WalkMarkerHandle : HPSSWALK -> 'void *'
// Buffer : void* optional, out -> 'void *'
// BufferLength : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("KERNEL32.dll", {
  PssWalkSnapshot: { parameters: ["pointer", "i32", "pointer", "pointer", "u32"], result: "u32" },
});
// lib.symbols.PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength)
// SnapshotHandle : HPSS -> "pointer"
// InformationClass : PSS_WALK_INFORMATION_CLASS -> "i32"
// WalkMarkerHandle : HPSSWALK -> "pointer"
// Buffer : void* optional, out -> "pointer"
// BufferLength : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t PssWalkSnapshot(
    void* SnapshotHandle,
    int32_t InformationClass,
    void* WalkMarkerHandle,
    void* Buffer,
    uint32_t BufferLength);
C, "KERNEL32.dll");
// $ffi->PssWalkSnapshot(SnapshotHandle, InformationClass, WalkMarkerHandle, Buffer, BufferLength);
// SnapshotHandle : HPSS
// InformationClass : PSS_WALK_INFORMATION_CLASS
// WalkMarkerHandle : HPSSWALK
// Buffer : void* optional, out
// BufferLength : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    int PssWalkSnapshot(
        Pointer SnapshotHandle,   // HPSS
        int InformationClass,   // PSS_WALK_INFORMATION_CLASS
        Pointer WalkMarkerHandle,   // HPSSWALK
        Pointer Buffer,   // void* optional, out
        int BufferLength   // DWORD
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun PssWalkSnapshot = PssWalkSnapshot(
    SnapshotHandle : Void*,   # HPSS
    InformationClass : Int32,   # PSS_WALK_INFORMATION_CLASS
    WalkMarkerHandle : Void*,   # HPSSWALK
    Buffer : Void*,   # void* optional, out
    BufferLength : UInt32   # DWORD
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef PssWalkSnapshotNative = Uint32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Void>, Uint32);
typedef PssWalkSnapshotDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Void>, int);
final PssWalkSnapshot = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<PssWalkSnapshotNative, PssWalkSnapshotDart>('PssWalkSnapshot');
// SnapshotHandle : HPSS -> Pointer<Void>
// InformationClass : PSS_WALK_INFORMATION_CLASS -> Int32
// WalkMarkerHandle : HPSSWALK -> Pointer<Void>
// Buffer : void* optional, out -> Pointer<Void>
// BufferLength : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PssWalkSnapshot(
  SnapshotHandle: THandle;   // HPSS
  InformationClass: Integer;   // PSS_WALK_INFORMATION_CLASS
  WalkMarkerHandle: THandle;   // HPSSWALK
  Buffer: Pointer;   // void* optional, out
  BufferLength: DWORD   // DWORD
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'PssWalkSnapshot';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PssWalkSnapshot"
  c_PssWalkSnapshot :: Ptr () -> Int32 -> Ptr () -> Ptr () -> Word32 -> IO Word32
-- SnapshotHandle : HPSS -> Ptr ()
-- InformationClass : PSS_WALK_INFORMATION_CLASS -> Int32
-- WalkMarkerHandle : HPSSWALK -> Ptr ()
-- Buffer : void* optional, out -> Ptr ()
-- BufferLength : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let psswalksnapshot =
  foreign "PssWalkSnapshot"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr void) @-> uint32_t @-> returning uint32_t)
(* SnapshotHandle : HPSS -> (ptr void) *)
(* InformationClass : PSS_WALK_INFORMATION_CLASS -> int32_t *)
(* WalkMarkerHandle : HPSSWALK -> (ptr void) *)
(* Buffer : void* optional, out -> (ptr void) *)
(* BufferLength : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("PssWalkSnapshot" pss-walk-snapshot :convention :stdcall) :uint32
  (snapshot-handle :pointer)   ; HPSS
  (information-class :int32)   ; PSS_WALK_INFORMATION_CLASS
  (walk-marker-handle :pointer)   ; HPSSWALK
  (buffer :pointer)   ; void* optional, out
  (buffer-length :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PssWalkSnapshot = Win32::API::More->new('KERNEL32',
    'DWORD PssWalkSnapshot(HANDLE SnapshotHandle, int InformationClass, HANDLE WalkMarkerHandle, LPVOID Buffer, DWORD BufferLength)');
# my $ret = $PssWalkSnapshot->Call($SnapshotHandle, $InformationClass, $WalkMarkerHandle, $Buffer, $BufferLength);
# SnapshotHandle : HPSS -> HANDLE
# InformationClass : PSS_WALK_INFORMATION_CLASS -> int
# WalkMarkerHandle : HPSSWALK -> HANDLE
# Buffer : void* optional, out -> LPVOID
# BufferLength : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。