HcsInitializeLegacyWritableLayer

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

HRESULT HcsInitializeLegacyWritableLayer(
    LPCWSTR writableLayerMountPath,
    LPCWSTR writableLayerFolderPath,
    LPCWSTR layerData,
    LPCWSTR options   // optional
);

<DllImport("computestorage.dll", ExactSpelling:=True)>
Public Shared Function HcsInitializeLegacyWritableLayer(
    <MarshalAs(UnmanagedType.LPWStr)> writableLayerMountPath As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> writableLayerFolderPath As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> layerData As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> options As String   ' LPCWSTR optional
) As Integer
End Function

' writableLayerMountPath : LPCWSTR
' writableLayerFolderPath : LPCWSTR
' layerData : LPCWSTR
' options : LPCWSTR optional
Declare PtrSafe Function HcsInitializeLegacyWritableLayer Lib "computestorage" ( _
    ByVal writableLayerMountPath As LongPtr, _
    ByVal writableLayerFolderPath As LongPtr, _
    ByVal layerData As LongPtr, _
    ByVal options 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

HcsInitializeLegacyWritableLayer = ctypes.windll.computestorage.HcsInitializeLegacyWritableLayer
HcsInitializeLegacyWritableLayer.restype = ctypes.c_int
HcsInitializeLegacyWritableLayer.argtypes = [
    wintypes.LPCWSTR,  # writableLayerMountPath : LPCWSTR
    wintypes.LPCWSTR,  # writableLayerFolderPath : LPCWSTR
    wintypes.LPCWSTR,  # layerData : LPCWSTR
    wintypes.LPCWSTR,  # options : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('computestorage.dll')
HcsInitializeLegacyWritableLayer = Fiddle::Function.new(
  lib['HcsInitializeLegacyWritableLayer'],
  [
    Fiddle::TYPE_VOIDP,  # writableLayerMountPath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # writableLayerFolderPath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # layerData : LPCWSTR
    Fiddle::TYPE_VOIDP,  # options : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "computestorage")]
extern "system" {
    fn HcsInitializeLegacyWritableLayer(
        writableLayerMountPath: *const u16,  // LPCWSTR
        writableLayerFolderPath: *const u16,  // LPCWSTR
        layerData: *const u16,  // LPCWSTR
        options: *const u16  // LPCWSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("computestorage.dll")]
public static extern int HcsInitializeLegacyWritableLayer([MarshalAs(UnmanagedType.LPWStr)] string writableLayerMountPath, [MarshalAs(UnmanagedType.LPWStr)] string writableLayerFolderPath, [MarshalAs(UnmanagedType.LPWStr)] string layerData, [MarshalAs(UnmanagedType.LPWStr)] string options);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computestorage_HcsInitializeLegacyWritableLayer' -Namespace Win32 -PassThru
# $api::HcsInitializeLegacyWritableLayer(writableLayerMountPath, writableLayerFolderPath, layerData, options)

#uselib "computestorage.dll"
#func global HcsInitializeLegacyWritableLayer "HcsInitializeLegacyWritableLayer" sptr, sptr, sptr, sptr
; HcsInitializeLegacyWritableLayer writableLayerMountPath, writableLayerFolderPath, layerData, options   ; 戻り値は stat
; writableLayerMountPath : LPCWSTR -> "sptr"
; writableLayerFolderPath : LPCWSTR -> "sptr"
; layerData : LPCWSTR -> "sptr"
; options : LPCWSTR optional -> "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 "computestorage.dll"
#cfunc global HcsInitializeLegacyWritableLayer "HcsInitializeLegacyWritableLayer" wstr, wstr, wstr, wstr
; res = HcsInitializeLegacyWritableLayer(writableLayerMountPath, writableLayerFolderPath, layerData, options)
; writableLayerMountPath : LPCWSTR -> "wstr"
; writableLayerFolderPath : LPCWSTR -> "wstr"
; layerData : LPCWSTR -> "wstr"
; options : LPCWSTR optional -> "wstr"

; HRESULT HcsInitializeLegacyWritableLayer(LPCWSTR writableLayerMountPath, LPCWSTR writableLayerFolderPath, LPCWSTR layerData, LPCWSTR options)
#uselib "computestorage.dll"
#cfunc global HcsInitializeLegacyWritableLayer "HcsInitializeLegacyWritableLayer" wstr, wstr, wstr, wstr
; res = HcsInitializeLegacyWritableLayer(writableLayerMountPath, writableLayerFolderPath, layerData, options)
; writableLayerMountPath : LPCWSTR -> "wstr"
; writableLayerFolderPath : LPCWSTR -> "wstr"
; layerData : LPCWSTR -> "wstr"
; options : LPCWSTR optional -> "wstr"

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

var (
	computestorage = windows.NewLazySystemDLL("computestorage.dll")
	procHcsInitializeLegacyWritableLayer = computestorage.NewProc("HcsInitializeLegacyWritableLayer")
)

// writableLayerMountPath (LPCWSTR), writableLayerFolderPath (LPCWSTR), layerData (LPCWSTR), options (LPCWSTR optional)
r1, _, err := procHcsInitializeLegacyWritableLayer.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(writableLayerMountPath))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(writableLayerFolderPath))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(layerData))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(options))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HcsInitializeLegacyWritableLayer(
  writableLayerMountPath: PWideChar;   // LPCWSTR
  writableLayerFolderPath: PWideChar;   // LPCWSTR
  layerData: PWideChar;   // LPCWSTR
  options: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'computestorage.dll' name 'HcsInitializeLegacyWritableLayer';

result := DllCall("computestorage\HcsInitializeLegacyWritableLayer"
    , "WStr", writableLayerMountPath   ; LPCWSTR
    , "WStr", writableLayerFolderPath   ; LPCWSTR
    , "WStr", layerData   ; LPCWSTR
    , "WStr", options   ; LPCWSTR optional
    , "Int")   ; return: HRESULT

●HcsInitializeLegacyWritableLayer(writableLayerMountPath, writableLayerFolderPath, layerData, options) = DLL("computestorage.dll", "int HcsInitializeLegacyWritableLayer(char*, char*, char*, char*)")
# 呼び出し: HcsInitializeLegacyWritableLayer(writableLayerMountPath, writableLayerFolderPath, layerData, options)
# writableLayerMountPath : LPCWSTR -> "char*"
# writableLayerFolderPath : LPCWSTR -> "char*"
# layerData : LPCWSTR -> "char*"
# options : LPCWSTR optional -> "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)。