ReadGuestRawSavedMemory

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

HRESULT ReadGuestRawSavedMemory(
    void* vmSavedStateDumpHandle,
    ULONGLONG rawSavedMemoryOffset,
    void* buffer,
    DWORD bufferSize,
    DWORD* bytesRead   // optional
);

<DllImport("VmSavedStateDumpProvider.dll", ExactSpelling:=True)>
Public Shared Function ReadGuestRawSavedMemory(
    vmSavedStateDumpHandle As IntPtr,   ' void* in/out
    rawSavedMemoryOffset As ULong,   ' ULONGLONG
    buffer As IntPtr,   ' void* out
    bufferSize As UInteger,   ' DWORD
    bytesRead As IntPtr   ' DWORD* optional, out
) As Integer
End Function

' vmSavedStateDumpHandle : void* in/out
' rawSavedMemoryOffset : ULONGLONG
' buffer : void* out
' bufferSize : DWORD
' bytesRead : DWORD* optional, out
Declare PtrSafe Function ReadGuestRawSavedMemory Lib "vmsavedstatedumpprovider" ( _
    ByVal vmSavedStateDumpHandle As LongPtr, _
    ByVal rawSavedMemoryOffset As LongLong, _
    ByVal buffer As LongPtr, _
    ByVal bufferSize As Long, _
    ByVal bytesRead 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

ReadGuestRawSavedMemory = ctypes.windll.vmsavedstatedumpprovider.ReadGuestRawSavedMemory
ReadGuestRawSavedMemory.restype = ctypes.c_int
ReadGuestRawSavedMemory.argtypes = [
    ctypes.POINTER(None),  # vmSavedStateDumpHandle : void* in/out
    ctypes.c_ulonglong,  # rawSavedMemoryOffset : ULONGLONG
    ctypes.POINTER(None),  # buffer : void* out
    wintypes.DWORD,  # bufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # bytesRead : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VmSavedStateDumpProvider.dll')
ReadGuestRawSavedMemory = Fiddle::Function.new(
  lib['ReadGuestRawSavedMemory'],
  [
    Fiddle::TYPE_VOIDP,  # vmSavedStateDumpHandle : void* in/out
    -Fiddle::TYPE_LONG_LONG,  # rawSavedMemoryOffset : ULONGLONG
    Fiddle::TYPE_VOIDP,  # buffer : void* out
    -Fiddle::TYPE_INT,  # bufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # bytesRead : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "vmsavedstatedumpprovider")]
extern "system" {
    fn ReadGuestRawSavedMemory(
        vmSavedStateDumpHandle: *mut (),  // void* in/out
        rawSavedMemoryOffset: u64,  // ULONGLONG
        buffer: *mut (),  // void* out
        bufferSize: u32,  // DWORD
        bytesRead: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("VmSavedStateDumpProvider.dll")]
public static extern int ReadGuestRawSavedMemory(IntPtr vmSavedStateDumpHandle, ulong rawSavedMemoryOffset, IntPtr buffer, uint bufferSize, IntPtr bytesRead);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VmSavedStateDumpProvider_ReadGuestRawSavedMemory' -Namespace Win32 -PassThru
# $api::ReadGuestRawSavedMemory(vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, bytesRead)

#uselib "VmSavedStateDumpProvider.dll"
#func global ReadGuestRawSavedMemory "ReadGuestRawSavedMemory" sptr, sptr, sptr, sptr, sptr
; ReadGuestRawSavedMemory vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, varptr(bytesRead)   ; 戻り値は stat
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; rawSavedMemoryOffset : ULONGLONG -> "sptr"
; buffer : void* out -> "sptr"
; bufferSize : DWORD -> "sptr"
; bytesRead : DWORD* optional, out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "VmSavedStateDumpProvider.dll"
#cfunc global ReadGuestRawSavedMemory "ReadGuestRawSavedMemory" sptr, int64, sptr, int, var
; res = ReadGuestRawSavedMemory(vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, bytesRead)
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; rawSavedMemoryOffset : ULONGLONG -> "int64"
; buffer : void* out -> "sptr"
; bufferSize : DWORD -> "int"
; bytesRead : DWORD* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; HRESULT ReadGuestRawSavedMemory(void* vmSavedStateDumpHandle, ULONGLONG rawSavedMemoryOffset, void* buffer, DWORD bufferSize, DWORD* bytesRead)
#uselib "VmSavedStateDumpProvider.dll"
#cfunc global ReadGuestRawSavedMemory "ReadGuestRawSavedMemory" intptr, int64, intptr, int, var
; res = ReadGuestRawSavedMemory(vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, bytesRead)
; vmSavedStateDumpHandle : void* in/out -> "intptr"
; rawSavedMemoryOffset : ULONGLONG -> "int64"
; buffer : void* out -> "intptr"
; bufferSize : DWORD -> "int"
; bytesRead : DWORD* optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	vmsavedstatedumpprovider = windows.NewLazySystemDLL("VmSavedStateDumpProvider.dll")
	procReadGuestRawSavedMemory = vmsavedstatedumpprovider.NewProc("ReadGuestRawSavedMemory")
)

// vmSavedStateDumpHandle (void* in/out), rawSavedMemoryOffset (ULONGLONG), buffer (void* out), bufferSize (DWORD), bytesRead (DWORD* optional, out)
r1, _, err := procReadGuestRawSavedMemory.Call(
	uintptr(vmSavedStateDumpHandle),
	uintptr(rawSavedMemoryOffset),
	uintptr(buffer),
	uintptr(bufferSize),
	uintptr(bytesRead),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function ReadGuestRawSavedMemory(
  vmSavedStateDumpHandle: Pointer;   // void* in/out
  rawSavedMemoryOffset: UInt64;   // ULONGLONG
  buffer: Pointer;   // void* out
  bufferSize: DWORD;   // DWORD
  bytesRead: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'VmSavedStateDumpProvider.dll' name 'ReadGuestRawSavedMemory';

result := DllCall("VmSavedStateDumpProvider\ReadGuestRawSavedMemory"
    , "Ptr", vmSavedStateDumpHandle   ; void* in/out
    , "Int64", rawSavedMemoryOffset   ; ULONGLONG
    , "Ptr", buffer   ; void* out
    , "UInt", bufferSize   ; DWORD
    , "Ptr", bytesRead   ; DWORD* optional, out
    , "Int")   ; return: HRESULT

●ReadGuestRawSavedMemory(vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, bytesRead) = DLL("VmSavedStateDumpProvider.dll", "int ReadGuestRawSavedMemory(void*, qword, void*, dword, void*)")
# 呼び出し: ReadGuestRawSavedMemory(vmSavedStateDumpHandle, rawSavedMemoryOffset, buffer, bufferSize, bytesRead)
# vmSavedStateDumpHandle : void* in/out -> "void*"
# rawSavedMemoryOffset : ULONGLONG -> "qword"
# buffer : void* out -> "void*"
# bufferSize : DWORD -> "dword"
# bytesRead : DWORD* optional, out -> "void*"
# 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)。