GetCurrentPackageFullName

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

WIN32_ERROR GetCurrentPackageFullName(
    DWORD* packageFullNameLength,
    LPWSTR packageFullName   // optional
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetCurrentPackageFullName(
    ByRef packageFullNameLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> packageFullName As System.Text.StringBuilder   ' LPWSTR optional, out
) As UInteger
End Function

' packageFullNameLength : DWORD* in/out
' packageFullName : LPWSTR optional, out
Declare PtrSafe Function GetCurrentPackageFullName Lib "kernel32" ( _
    ByRef packageFullNameLength As Long, _
    ByVal packageFullName 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

GetCurrentPackageFullName = ctypes.windll.kernel32.GetCurrentPackageFullName
GetCurrentPackageFullName.restype = wintypes.DWORD
GetCurrentPackageFullName.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # packageFullNameLength : DWORD* in/out
    wintypes.LPWSTR,  # packageFullName : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetCurrentPackageFullName = Fiddle::Function.new(
  lib['GetCurrentPackageFullName'],
  [
    Fiddle::TYPE_VOIDP,  # packageFullNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # packageFullName : LPWSTR optional, out
  ],
  -Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern uint GetCurrentPackageFullName(ref uint packageFullNameLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder packageFullName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetCurrentPackageFullName' -Namespace Win32 -PassThru
# $api::GetCurrentPackageFullName(packageFullNameLength, packageFullName)

#uselib "KERNEL32.dll"
#func global GetCurrentPackageFullName "GetCurrentPackageFullName" sptr, sptr
; GetCurrentPackageFullName varptr(packageFullNameLength), varptr(packageFullName)   ; 戻り値は stat
; packageFullNameLength : DWORD* in/out -> "sptr"
; packageFullName : 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")
	procGetCurrentPackageFullName = kernel32.NewProc("GetCurrentPackageFullName")
)

// packageFullNameLength (DWORD* in/out), packageFullName (LPWSTR optional, out)
r1, _, err := procGetCurrentPackageFullName.Call(
	uintptr(packageFullNameLength),
	uintptr(packageFullName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function GetCurrentPackageFullName(
  packageFullNameLength: Pointer;   // DWORD* in/out
  packageFullName: PWideChar   // LPWSTR optional, out
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetCurrentPackageFullName';

result := DllCall("KERNEL32\GetCurrentPackageFullName"
    , "Ptr", packageFullNameLength   ; DWORD* in/out
    , "Ptr", packageFullName   ; LPWSTR optional, out
    , "UInt")   ; return: WIN32_ERROR

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

proc GetCurrentPackageFullName(
    packageFullNameLength: ptr uint32,  # DWORD* in/out
    packageFullName: ptr uint16  # LPWSTR optional, out
): uint32 {.importc: "GetCurrentPackageFullName", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
uint GetCurrentPackageFullName(
    uint* packageFullNameLength,   // DWORD* in/out
    wchar* packageFullName   // LPWSTR optional, out
);

ccall((:GetCurrentPackageFullName, "KERNEL32.dll"), stdcall, UInt32,
      (Ptr{UInt32}, Ptr{UInt16}),
      packageFullNameLength, packageFullName)
# packageFullNameLength : DWORD* in/out -> Ptr{UInt32}
# packageFullName : 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 GetCurrentPackageFullName(
    uint32_t* packageFullNameLength,
    uint16_t* packageFullName);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.GetCurrentPackageFullName(packageFullNameLength, packageFullName)
-- packageFullNameLength : DWORD* in/out
-- packageFullName : 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 GetCurrentPackageFullName = lib.func('__stdcall', 'GetCurrentPackageFullName', 'uint32_t', ['uint32_t *', 'uint16_t *']);
// GetCurrentPackageFullName(packageFullNameLength, packageFullName)
// packageFullNameLength : DWORD* in/out -> 'uint32_t *'
// packageFullName : 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", {
  GetCurrentPackageFullName: { parameters: ["pointer", "buffer"], result: "u32" },
});
// lib.symbols.GetCurrentPackageFullName(packageFullNameLength, packageFullName)
// packageFullNameLength : DWORD* in/out -> "pointer"
// packageFullName : 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 GetCurrentPackageFullName(
    uint32_t* packageFullNameLength,
    uint16_t* packageFullName);
C, "KERNEL32.dll");
// $ffi->GetCurrentPackageFullName(packageFullNameLength, packageFullName);
// packageFullNameLength : DWORD* in/out
// packageFullName : 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 GetCurrentPackageFullName(
        IntByReference packageFullNameLength,   // DWORD* in/out
        char[] packageFullName   // LPWSTR optional, out
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun GetCurrentPackageFullName = GetCurrentPackageFullName(
    packageFullNameLength : UInt32*,   # DWORD* in/out
    packageFullName : 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 GetCurrentPackageFullNameNative = Uint32 Function(Pointer<Uint32>, Pointer<Utf16>);
typedef GetCurrentPackageFullNameDart = int Function(Pointer<Uint32>, Pointer<Utf16>);
final GetCurrentPackageFullName = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<GetCurrentPackageFullNameNative, GetCurrentPackageFullNameDart>('GetCurrentPackageFullName');
// packageFullNameLength : DWORD* in/out -> Pointer<Uint32>
// packageFullName : LPWSTR optional, out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetCurrentPackageFullName(
  packageFullNameLength: Pointer;   // DWORD* in/out
  packageFullName: PWideChar   // LPWSTR optional, out
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetCurrentPackageFullName';

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

foreign import stdcall safe "GetCurrentPackageFullName"
  c_GetCurrentPackageFullName :: Ptr Word32 -> CWString -> IO Word32
-- packageFullNameLength : DWORD* in/out -> Ptr Word32
-- packageFullName : 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 getcurrentpackagefullname =
  foreign "GetCurrentPackageFullName"
    ((ptr uint32_t) @-> (ptr uint16_t) @-> returning uint32_t)
(* packageFullNameLength : DWORD* in/out -> (ptr uint32_t) *)
(* packageFullName : 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 ("GetCurrentPackageFullName" get-current-package-full-name :convention :stdcall) :uint32
  (package-full-name-length :pointer)   ; DWORD* in/out
  (package-full-name :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 $GetCurrentPackageFullName = Win32::API::More->new('KERNEL32',
    'DWORD GetCurrentPackageFullName(LPVOID packageFullNameLength, LPWSTR packageFullName)');
# my $ret = $GetCurrentPackageFullName->Call($packageFullNameLength, $packageFullName);
# packageFullNameLength : DWORD* in/out -> LPVOID
# packageFullName : 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。