SLGetGenuineInformation

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

HRESULT SLGetGenuineInformation(
    const GUID* pQueryId,
    LPCWSTR pwszValueName,
    SLDATATYPE* peDataType,   // optional
    DWORD* pcbValue,
    BYTE** ppbValue
);

<DllImport("SLC.dll", ExactSpelling:=True)>
Public Shared Function SLGetGenuineInformation(
    ByRef pQueryId As Guid,   ' GUID*
    <MarshalAs(UnmanagedType.LPWStr)> pwszValueName As String,   ' LPCWSTR
    peDataType As IntPtr,   ' SLDATATYPE* optional, out
    <Out> ByRef pcbValue As UInteger,   ' DWORD* out
    ppbValue As IntPtr   ' BYTE** out
) As Integer
End Function

' pQueryId : GUID*
' pwszValueName : LPCWSTR
' peDataType : SLDATATYPE* optional, out
' pcbValue : DWORD* out
' ppbValue : BYTE** out
Declare PtrSafe Function SLGetGenuineInformation Lib "slc" ( _
    ByVal pQueryId As LongPtr, _
    ByVal pwszValueName As LongPtr, _
    ByVal peDataType As LongPtr, _
    ByRef pcbValue As Long, _
    ByVal ppbValue 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

SLGetGenuineInformation = ctypes.windll.slc.SLGetGenuineInformation
SLGetGenuineInformation.restype = ctypes.c_int
SLGetGenuineInformation.argtypes = [
    ctypes.c_void_p,  # pQueryId : GUID*
    wintypes.LPCWSTR,  # pwszValueName : LPCWSTR
    ctypes.c_void_p,  # peDataType : SLDATATYPE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbValue : DWORD* out
    ctypes.c_void_p,  # ppbValue : BYTE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SLC.dll')
SLGetGenuineInformation = Fiddle::Function.new(
  lib['SLGetGenuineInformation'],
  [
    Fiddle::TYPE_VOIDP,  # pQueryId : GUID*
    Fiddle::TYPE_VOIDP,  # pwszValueName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # peDataType : SLDATATYPE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbValue : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppbValue : BYTE** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "slc")]
extern "system" {
    fn SLGetGenuineInformation(
        pQueryId: *const GUID,  // GUID*
        pwszValueName: *const u16,  // LPCWSTR
        peDataType: *mut u32,  // SLDATATYPE* optional, out
        pcbValue: *mut u32,  // DWORD* out
        ppbValue: *mut *mut u8  // BYTE** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SLC.dll")]
public static extern int SLGetGenuineInformation(ref Guid pQueryId, [MarshalAs(UnmanagedType.LPWStr)] string pwszValueName, IntPtr peDataType, out uint pcbValue, IntPtr ppbValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SLC_SLGetGenuineInformation' -Namespace Win32 -PassThru
# $api::SLGetGenuineInformation(pQueryId, pwszValueName, peDataType, pcbValue, ppbValue)

#uselib "SLC.dll"
#func global SLGetGenuineInformation "SLGetGenuineInformation" sptr, sptr, sptr, sptr, sptr
; SLGetGenuineInformation varptr(pQueryId), pwszValueName, peDataType, varptr(pcbValue), varptr(ppbValue)   ; 戻り値は stat
; pQueryId : GUID* -> "sptr"
; pwszValueName : LPCWSTR -> "sptr"
; peDataType : SLDATATYPE* optional, out -> "sptr"
; pcbValue : DWORD* out -> "sptr"
; ppbValue : BYTE** 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 "SLC.dll"
#cfunc global SLGetGenuineInformation "SLGetGenuineInformation" var, wstr, int, var, var
; res = SLGetGenuineInformation(pQueryId, pwszValueName, peDataType, pcbValue, ppbValue)
; pQueryId : GUID* -> "var"
; pwszValueName : LPCWSTR -> "wstr"
; peDataType : SLDATATYPE* optional, out -> "int"
; pcbValue : DWORD* out -> "var"
; ppbValue : BYTE** 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 SLGetGenuineInformation(GUID* pQueryId, LPCWSTR pwszValueName, SLDATATYPE* peDataType, DWORD* pcbValue, BYTE** ppbValue)
#uselib "SLC.dll"
#cfunc global SLGetGenuineInformation "SLGetGenuineInformation" var, wstr, int, var, var
; res = SLGetGenuineInformation(pQueryId, pwszValueName, peDataType, pcbValue, ppbValue)
; pQueryId : GUID* -> "var"
; pwszValueName : LPCWSTR -> "wstr"
; peDataType : SLDATATYPE* optional, out -> "int"
; pcbValue : DWORD* out -> "var"
; ppbValue : BYTE** 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 (
	slc = windows.NewLazySystemDLL("SLC.dll")
	procSLGetGenuineInformation = slc.NewProc("SLGetGenuineInformation")
)

// pQueryId (GUID*), pwszValueName (LPCWSTR), peDataType (SLDATATYPE* optional, out), pcbValue (DWORD* out), ppbValue (BYTE** out)
r1, _, err := procSLGetGenuineInformation.Call(
	uintptr(pQueryId),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszValueName))),
	uintptr(peDataType),
	uintptr(pcbValue),
	uintptr(ppbValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SLGetGenuineInformation(
  pQueryId: PGUID;   // GUID*
  pwszValueName: PWideChar;   // LPCWSTR
  peDataType: Pointer;   // SLDATATYPE* optional, out
  pcbValue: Pointer;   // DWORD* out
  ppbValue: Pointer   // BYTE** out
): Integer; stdcall;
  external 'SLC.dll' name 'SLGetGenuineInformation';

result := DllCall("SLC\SLGetGenuineInformation"
    , "Ptr", pQueryId   ; GUID*
    , "WStr", pwszValueName   ; LPCWSTR
    , "Ptr", peDataType   ; SLDATATYPE* optional, out
    , "Ptr", pcbValue   ; DWORD* out
    , "Ptr", ppbValue   ; BYTE** out
    , "Int")   ; return: HRESULT

●SLGetGenuineInformation(pQueryId, pwszValueName, peDataType, pcbValue, ppbValue) = DLL("SLC.dll", "int SLGetGenuineInformation(void*, char*, void*, void*, void*)")
# 呼び出し: SLGetGenuineInformation(pQueryId, pwszValueName, peDataType, pcbValue, ppbValue)
# pQueryId : GUID* -> "void*"
# pwszValueName : LPCWSTR -> "char*"
# peDataType : SLDATATYPE* optional, out -> "void*"
# pcbValue : DWORD* out -> "void*"
# ppbValue : BYTE** 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)。