GetPackagePath

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

WIN32_ERROR GetPackagePath(
    const PACKAGE_ID* packageId,
    DWORD reserved,   // optional
    DWORD* pathLength,
    LPWSTR path   // optional
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetPackagePath(
    packageId As IntPtr,   ' PACKAGE_ID*
    reserved As UInteger,   ' DWORD optional
    ByRef pathLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> path As System.Text.StringBuilder   ' LPWSTR optional, out
) As UInteger
End Function

' packageId : PACKAGE_ID*
' reserved : DWORD optional
' pathLength : DWORD* in/out
' path : LPWSTR optional, out
Declare PtrSafe Function GetPackagePath Lib "kernel32" ( _
    ByVal packageId As LongPtr, _
    ByVal reserved As Long, _
    ByRef pathLength As Long, _
    ByVal path 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

GetPackagePath = ctypes.windll.kernel32.GetPackagePath
GetPackagePath.restype = wintypes.DWORD
GetPackagePath.argtypes = [
    ctypes.c_void_p,  # packageId : PACKAGE_ID*
    wintypes.DWORD,  # reserved : DWORD optional
    ctypes.POINTER(wintypes.DWORD),  # pathLength : DWORD* in/out
    wintypes.LPWSTR,  # path : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetPackagePath = Fiddle::Function.new(
  lib['GetPackagePath'],
  [
    Fiddle::TYPE_VOIDP,  # packageId : PACKAGE_ID*
    -Fiddle::TYPE_INT,  # reserved : DWORD optional
    Fiddle::TYPE_VOIDP,  # pathLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # path : LPWSTR optional, out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetPackagePath(
        packageId: *const PACKAGE_ID,  // PACKAGE_ID*
        reserved: u32,  // DWORD optional
        pathLength: *mut u32,  // DWORD* in/out
        path: *mut u16  // LPWSTR optional, out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern uint GetPackagePath(IntPtr packageId, uint reserved, ref uint pathLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder path);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetPackagePath' -Namespace Win32 -PassThru
# $api::GetPackagePath(packageId, reserved, pathLength, path)

#uselib "KERNEL32.dll"
#func global GetPackagePath "GetPackagePath" sptr, sptr, sptr, sptr
; GetPackagePath varptr(packageId), reserved, varptr(pathLength), varptr(path)   ; 戻り値は stat
; packageId : PACKAGE_ID* -> "sptr"
; reserved : DWORD optional -> "sptr"
; pathLength : DWORD* in/out -> "sptr"
; path : LPWSTR optional, 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。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetPackagePath = kernel32.NewProc("GetPackagePath")
)

// packageId (PACKAGE_ID*), reserved (DWORD optional), pathLength (DWORD* in/out), path (LPWSTR optional, out)
r1, _, err := procGetPackagePath.Call(
	uintptr(packageId),
	uintptr(reserved),
	uintptr(pathLength),
	uintptr(path),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function GetPackagePath(
  packageId: Pointer;   // PACKAGE_ID*
  reserved: DWORD;   // DWORD optional
  pathLength: Pointer;   // DWORD* in/out
  path: PWideChar   // LPWSTR optional, out
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetPackagePath';

result := DllCall("KERNEL32\GetPackagePath"
    , "Ptr", packageId   ; PACKAGE_ID*
    , "UInt", reserved   ; DWORD optional
    , "Ptr", pathLength   ; DWORD* in/out
    , "Ptr", path   ; LPWSTR optional, out
    , "UInt")   ; return: WIN32_ERROR

●GetPackagePath(packageId, reserved, pathLength, path) = DLL("KERNEL32.dll", "dword GetPackagePath(void*, dword, void*, char*)")
# 呼び出し: GetPackagePath(packageId, reserved, pathLength, path)
# packageId : PACKAGE_ID* -> "void*"
# reserved : DWORD optional -> "dword"
# pathLength : DWORD* in/out -> "void*"
# path : LPWSTR optional, out -> "char*"
# 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 GetPackagePath(
    packageId: [*c]PACKAGE_ID, // PACKAGE_ID*
    reserved: u32, // DWORD optional
    pathLength: [*c]u32, // DWORD* in/out
    path: [*c]u16 // LPWSTR optional, out
) callconv(std.os.windows.WINAPI) u32;

proc GetPackagePath(
    packageId: ptr PACKAGE_ID,  # PACKAGE_ID*
    reserved: uint32,  # DWORD optional
    pathLength: ptr uint32,  # DWORD* in/out
    path: ptr uint16  # LPWSTR optional, out
): uint32 {.importc: "GetPackagePath", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
uint GetPackagePath(
    PACKAGE_ID* packageId,   // PACKAGE_ID*
    uint reserved,   // DWORD optional
    uint* pathLength,   // DWORD* in/out
    wchar* path   // LPWSTR optional, out
);

ccall((:GetPackagePath, "KERNEL32.dll"), stdcall, UInt32,
      (Ptr{PACKAGE_ID}, UInt32, Ptr{UInt32}, Ptr{UInt16}),
      packageId, reserved, pathLength, path)
# packageId : PACKAGE_ID* -> Ptr{PACKAGE_ID}
# reserved : DWORD optional -> UInt32
# pathLength : DWORD* in/out -> Ptr{UInt32}
# path : LPWSTR optional, out -> Ptr{UInt16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t GetPackagePath(
    void* packageId,
    uint32_t reserved,
    uint32_t* pathLength,
    uint16_t* path);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.GetPackagePath(packageId, reserved, pathLength, path)
-- packageId : PACKAGE_ID*
-- reserved : DWORD optional
-- pathLength : DWORD* in/out
-- path : LPWSTR optional, out
-- 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 GetPackagePath = lib.func('__stdcall', 'GetPackagePath', 'uint32_t', ['void *', 'uint32_t', 'uint32_t *', 'uint16_t *']);
// GetPackagePath(packageId, reserved, pathLength, path)
// packageId : PACKAGE_ID* -> 'void *'
// reserved : DWORD optional -> 'uint32_t'
// pathLength : DWORD* in/out -> 'uint32_t *'
// path : LPWSTR optional, out -> 'uint16_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", {
  GetPackagePath: { parameters: ["pointer", "u32", "pointer", "buffer"], result: "u32" },
});
// lib.symbols.GetPackagePath(packageId, reserved, pathLength, path)
// packageId : PACKAGE_ID* -> "pointer"
// reserved : DWORD optional -> "u32"
// pathLength : DWORD* in/out -> "pointer"
// path : LPWSTR optional, out -> "buffer"
// 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 GetPackagePath(
    void* packageId,
    uint32_t reserved,
    uint32_t* pathLength,
    uint16_t* path);
C, "KERNEL32.dll");
// $ffi->GetPackagePath(packageId, reserved, pathLength, path);
// packageId : PACKAGE_ID*
// reserved : DWORD optional
// pathLength : DWORD* in/out
// path : LPWSTR optional, out
// 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 GetPackagePath(
        Pointer packageId,   // PACKAGE_ID*
        int reserved,   // DWORD optional
        IntByReference pathLength,   // DWORD* in/out
        char[] path   // LPWSTR optional, out
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun GetPackagePath = GetPackagePath(
    packageId : PACKAGE_ID*,   # PACKAGE_ID*
    reserved : UInt32,   # DWORD optional
    pathLength : UInt32*,   # DWORD* in/out
    path : UInt16*   # LPWSTR optional, out
  ) : 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 GetPackagePathNative = Uint32 Function(Pointer<Void>, Uint32, Pointer<Uint32>, Pointer<Utf16>);
typedef GetPackagePathDart = int Function(Pointer<Void>, int, Pointer<Uint32>, Pointer<Utf16>);
final GetPackagePath = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<GetPackagePathNative, GetPackagePathDart>('GetPackagePath');
// packageId : PACKAGE_ID* -> Pointer<Void>
// reserved : DWORD optional -> Uint32
// pathLength : DWORD* in/out -> Pointer<Uint32>
// path : LPWSTR optional, out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetPackagePath(
  packageId: Pointer;   // PACKAGE_ID*
  reserved: DWORD;   // DWORD optional
  pathLength: Pointer;   // DWORD* in/out
  path: PWideChar   // LPWSTR optional, out
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetPackagePath';

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

foreign import stdcall safe "GetPackagePath"
  c_GetPackagePath :: Ptr () -> Word32 -> Ptr Word32 -> CWString -> IO Word32
-- packageId : PACKAGE_ID* -> Ptr ()
-- reserved : DWORD optional -> Word32
-- pathLength : DWORD* in/out -> Ptr Word32
-- path : LPWSTR optional, out -> CWString
-- 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 getpackagepath =
  foreign "GetPackagePath"
    ((ptr void) @-> uint32_t @-> (ptr uint32_t) @-> (ptr uint16_t) @-> returning uint32_t)
(* packageId : PACKAGE_ID* -> (ptr void) *)
(* reserved : DWORD optional -> uint32_t *)
(* pathLength : DWORD* in/out -> (ptr uint32_t) *)
(* path : LPWSTR optional, out -> (ptr uint16_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 ("GetPackagePath" get-package-path :convention :stdcall) :uint32
  (package-id :pointer)   ; PACKAGE_ID*
  (reserved :uint32)   ; DWORD optional
  (path-length :pointer)   ; DWORD* in/out
  (path :pointer))   ; LPWSTR optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetPackagePath = Win32::API::More->new('KERNEL32',
    'DWORD GetPackagePath(LPVOID packageId, DWORD reserved, LPVOID pathLength, LPWSTR path)');
# my $ret = $GetPackagePath->Call($packageId, $reserved, $pathLength, $path);
# packageId : PACKAGE_ID* -> LPVOID
# reserved : DWORD optional -> DWORD
# pathLength : DWORD* in/out -> LPVOID
# path : LPWSTR optional, out -> LPWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。