HcsInitializeWritableLayer

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

HRESULT HcsInitializeWritableLayer(
    LPCWSTR writableLayerPath,
    LPCWSTR layerData,
    LPCWSTR options   // optional
);

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

' writableLayerPath : LPCWSTR
' layerData : LPCWSTR
' options : LPCWSTR optional
Declare PtrSafe Function HcsInitializeWritableLayer Lib "computestorage" ( _
    ByVal writableLayerPath 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

HcsInitializeWritableLayer = ctypes.windll.computestorage.HcsInitializeWritableLayer
HcsInitializeWritableLayer.restype = ctypes.c_int
HcsInitializeWritableLayer.argtypes = [
    wintypes.LPCWSTR,  # writableLayerPath : LPCWSTR
    wintypes.LPCWSTR,  # layerData : LPCWSTR
    wintypes.LPCWSTR,  # options : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "computestorage")]
extern "system" {
    fn HcsInitializeWritableLayer(
        writableLayerPath: *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 HcsInitializeWritableLayer([MarshalAs(UnmanagedType.LPWStr)] string writableLayerPath, [MarshalAs(UnmanagedType.LPWStr)] string layerData, [MarshalAs(UnmanagedType.LPWStr)] string options);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computestorage_HcsInitializeWritableLayer' -Namespace Win32 -PassThru
# $api::HcsInitializeWritableLayer(writableLayerPath, layerData, options)

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

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

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

var (
	computestorage = windows.NewLazySystemDLL("computestorage.dll")
	procHcsInitializeWritableLayer = computestorage.NewProc("HcsInitializeWritableLayer")
)

// writableLayerPath (LPCWSTR), layerData (LPCWSTR), options (LPCWSTR optional)
r1, _, err := procHcsInitializeWritableLayer.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(writableLayerPath))),
	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 HcsInitializeWritableLayer(
  writableLayerPath: PWideChar;   // LPCWSTR
  layerData: PWideChar;   // LPCWSTR
  options: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'computestorage.dll' name 'HcsInitializeWritableLayer';

result := DllCall("computestorage\HcsInitializeWritableLayer"
    , "WStr", writableLayerPath   ; LPCWSTR
    , "WStr", layerData   ; LPCWSTR
    , "WStr", options   ; LPCWSTR optional
    , "Int")   ; return: HRESULT

●HcsInitializeWritableLayer(writableLayerPath, layerData, options) = DLL("computestorage.dll", "int HcsInitializeWritableLayer(char*, char*, char*)")
# 呼び出し: HcsInitializeWritableLayer(writableLayerPath, layerData, options)
# writableLayerPath : 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)。