GetRegisterValue

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

HRESULT GetRegisterValue(
    void* vmSavedStateDumpHandle,
    DWORD vpId,
    DWORD registerId,
    VIRTUAL_PROCESSOR_REGISTER* registerValue
);

<DllImport("VmSavedStateDumpProvider.dll", ExactSpelling:=True)>
Public Shared Function GetRegisterValue(
    vmSavedStateDumpHandle As IntPtr,   ' void* in/out
    vpId As UInteger,   ' DWORD
    registerId As UInteger,   ' DWORD
    registerValue As IntPtr   ' VIRTUAL_PROCESSOR_REGISTER* out
) As Integer
End Function

' vmSavedStateDumpHandle : void* in/out
' vpId : DWORD
' registerId : DWORD
' registerValue : VIRTUAL_PROCESSOR_REGISTER* out
Declare PtrSafe Function GetRegisterValue Lib "vmsavedstatedumpprovider" ( _
    ByVal vmSavedStateDumpHandle As LongPtr, _
    ByVal vpId As Long, _
    ByVal registerId As Long, _
    ByVal registerValue 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

GetRegisterValue = ctypes.windll.vmsavedstatedumpprovider.GetRegisterValue
GetRegisterValue.restype = ctypes.c_int
GetRegisterValue.argtypes = [
    ctypes.POINTER(None),  # vmSavedStateDumpHandle : void* in/out
    wintypes.DWORD,  # vpId : DWORD
    wintypes.DWORD,  # registerId : DWORD
    ctypes.c_void_p,  # registerValue : VIRTUAL_PROCESSOR_REGISTER* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VmSavedStateDumpProvider.dll')
GetRegisterValue = Fiddle::Function.new(
  lib['GetRegisterValue'],
  [
    Fiddle::TYPE_VOIDP,  # vmSavedStateDumpHandle : void* in/out
    -Fiddle::TYPE_INT,  # vpId : DWORD
    -Fiddle::TYPE_INT,  # registerId : DWORD
    Fiddle::TYPE_VOIDP,  # registerValue : VIRTUAL_PROCESSOR_REGISTER* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "vmsavedstatedumpprovider")]
extern "system" {
    fn GetRegisterValue(
        vmSavedStateDumpHandle: *mut (),  // void* in/out
        vpId: u32,  // DWORD
        registerId: u32,  // DWORD
        registerValue: *mut VIRTUAL_PROCESSOR_REGISTER  // VIRTUAL_PROCESSOR_REGISTER* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("VmSavedStateDumpProvider.dll")]
public static extern int GetRegisterValue(IntPtr vmSavedStateDumpHandle, uint vpId, uint registerId, IntPtr registerValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VmSavedStateDumpProvider_GetRegisterValue' -Namespace Win32 -PassThru
# $api::GetRegisterValue(vmSavedStateDumpHandle, vpId, registerId, registerValue)

#uselib "VmSavedStateDumpProvider.dll"
#func global GetRegisterValue "GetRegisterValue" sptr, sptr, sptr, sptr
; GetRegisterValue vmSavedStateDumpHandle, vpId, registerId, varptr(registerValue)   ; 戻り値は stat
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; vpId : DWORD -> "sptr"
; registerId : DWORD -> "sptr"
; registerValue : VIRTUAL_PROCESSOR_REGISTER* 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。

#uselib "VmSavedStateDumpProvider.dll"
#cfunc global GetRegisterValue "GetRegisterValue" sptr, int, int, var
; res = GetRegisterValue(vmSavedStateDumpHandle, vpId, registerId, registerValue)
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; vpId : DWORD -> "int"
; registerId : DWORD -> "int"
; registerValue : VIRTUAL_PROCESSOR_REGISTER* 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。

; HRESULT GetRegisterValue(void* vmSavedStateDumpHandle, DWORD vpId, DWORD registerId, VIRTUAL_PROCESSOR_REGISTER* registerValue)
#uselib "VmSavedStateDumpProvider.dll"
#cfunc global GetRegisterValue "GetRegisterValue" intptr, int, int, var
; res = GetRegisterValue(vmSavedStateDumpHandle, vpId, registerId, registerValue)
; vmSavedStateDumpHandle : void* in/out -> "intptr"
; vpId : DWORD -> "int"
; registerId : DWORD -> "int"
; registerValue : VIRTUAL_PROCESSOR_REGISTER* 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")
	procGetRegisterValue = vmsavedstatedumpprovider.NewProc("GetRegisterValue")
)

// vmSavedStateDumpHandle (void* in/out), vpId (DWORD), registerId (DWORD), registerValue (VIRTUAL_PROCESSOR_REGISTER* out)
r1, _, err := procGetRegisterValue.Call(
	uintptr(vmSavedStateDumpHandle),
	uintptr(vpId),
	uintptr(registerId),
	uintptr(registerValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetRegisterValue(
  vmSavedStateDumpHandle: Pointer;   // void* in/out
  vpId: DWORD;   // DWORD
  registerId: DWORD;   // DWORD
  registerValue: Pointer   // VIRTUAL_PROCESSOR_REGISTER* out
): Integer; stdcall;
  external 'VmSavedStateDumpProvider.dll' name 'GetRegisterValue';

result := DllCall("VmSavedStateDumpProvider\GetRegisterValue"
    , "Ptr", vmSavedStateDumpHandle   ; void* in/out
    , "UInt", vpId   ; DWORD
    , "UInt", registerId   ; DWORD
    , "Ptr", registerValue   ; VIRTUAL_PROCESSOR_REGISTER* out
    , "Int")   ; return: HRESULT

●GetRegisterValue(vmSavedStateDumpHandle, vpId, registerId, registerValue) = DLL("VmSavedStateDumpProvider.dll", "int GetRegisterValue(void*, dword, dword, void*)")
# 呼び出し: GetRegisterValue(vmSavedStateDumpHandle, vpId, registerId, registerValue)
# vmSavedStateDumpHandle : void* in/out -> "void*"
# vpId : DWORD -> "dword"
# registerId : DWORD -> "dword"
# registerValue : VIRTUAL_PROCESSOR_REGISTER* 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)。