GetSystemFirmwareTable

// KERNEL32.dll
#include <windows.h>

DWORD GetSystemFirmwareTable(
    FIRMWARE_TABLE_PROVIDER FirmwareTableProviderSignature,
    DWORD FirmwareTableID,
    BYTE* pFirmwareTableBuffer,   // optional
    DWORD BufferSize
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetSystemFirmwareTable(
    FirmwareTableProviderSignature As UInteger,   ' FIRMWARE_TABLE_PROVIDER
    FirmwareTableID As UInteger,   ' DWORD
    pFirmwareTableBuffer As IntPtr,   ' BYTE* optional, out
    BufferSize As UInteger   ' DWORD
) As UInteger
End Function

' FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER
' FirmwareTableID : DWORD
' pFirmwareTableBuffer : BYTE* optional, out
' BufferSize : DWORD
Declare PtrSafe Function GetSystemFirmwareTable Lib "kernel32" ( _
    ByVal FirmwareTableProviderSignature As Long, _
    ByVal FirmwareTableID As Long, _
    ByVal pFirmwareTableBuffer As LongPtr, _
    ByVal BufferSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetSystemFirmwareTable = ctypes.windll.kernel32.GetSystemFirmwareTable
GetSystemFirmwareTable.restype = wintypes.DWORD
GetSystemFirmwareTable.argtypes = [
    wintypes.DWORD,  # FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER
    wintypes.DWORD,  # FirmwareTableID : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pFirmwareTableBuffer : BYTE* optional, out
    wintypes.DWORD,  # BufferSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetSystemFirmwareTable = Fiddle::Function.new(
  lib['GetSystemFirmwareTable'],
  [
    -Fiddle::TYPE_INT,  # FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER
    -Fiddle::TYPE_INT,  # FirmwareTableID : DWORD
    Fiddle::TYPE_VOIDP,  # pFirmwareTableBuffer : BYTE* optional, out
    -Fiddle::TYPE_INT,  # BufferSize : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetSystemFirmwareTable(
        FirmwareTableProviderSignature: u32,  // FIRMWARE_TABLE_PROVIDER
        FirmwareTableID: u32,  // DWORD
        pFirmwareTableBuffer: *mut u8,  // BYTE* optional, out
        BufferSize: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern uint GetSystemFirmwareTable(uint FirmwareTableProviderSignature, uint FirmwareTableID, IntPtr pFirmwareTableBuffer, uint BufferSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetSystemFirmwareTable' -Namespace Win32 -PassThru
# $api::GetSystemFirmwareTable(FirmwareTableProviderSignature, FirmwareTableID, pFirmwareTableBuffer, BufferSize)

#uselib "KERNEL32.dll"
#func global GetSystemFirmwareTable "GetSystemFirmwareTable" sptr, sptr, sptr, sptr
; GetSystemFirmwareTable FirmwareTableProviderSignature, FirmwareTableID, varptr(pFirmwareTableBuffer), BufferSize   ; 戻り値は stat
; FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER -> "sptr"
; FirmwareTableID : DWORD -> "sptr"
; pFirmwareTableBuffer : BYTE* optional, out -> "sptr"
; BufferSize : DWORD -> "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 "KERNEL32.dll"
#cfunc global GetSystemFirmwareTable "GetSystemFirmwareTable" int, int, var, int
; res = GetSystemFirmwareTable(FirmwareTableProviderSignature, FirmwareTableID, pFirmwareTableBuffer, BufferSize)
; FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER -> "int"
; FirmwareTableID : DWORD -> "int"
; pFirmwareTableBuffer : BYTE* optional, out -> "var"
; BufferSize : DWORD -> "int"
; ※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。

; DWORD GetSystemFirmwareTable(FIRMWARE_TABLE_PROVIDER FirmwareTableProviderSignature, DWORD FirmwareTableID, BYTE* pFirmwareTableBuffer, DWORD BufferSize)
#uselib "KERNEL32.dll"
#cfunc global GetSystemFirmwareTable "GetSystemFirmwareTable" int, int, var, int
; res = GetSystemFirmwareTable(FirmwareTableProviderSignature, FirmwareTableID, pFirmwareTableBuffer, BufferSize)
; FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER -> "int"
; FirmwareTableID : DWORD -> "int"
; pFirmwareTableBuffer : BYTE* optional, out -> "var"
; BufferSize : DWORD -> "int"
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetSystemFirmwareTable = kernel32.NewProc("GetSystemFirmwareTable")
)

// FirmwareTableProviderSignature (FIRMWARE_TABLE_PROVIDER), FirmwareTableID (DWORD), pFirmwareTableBuffer (BYTE* optional, out), BufferSize (DWORD)
r1, _, err := procGetSystemFirmwareTable.Call(
	uintptr(FirmwareTableProviderSignature),
	uintptr(FirmwareTableID),
	uintptr(pFirmwareTableBuffer),
	uintptr(BufferSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetSystemFirmwareTable(
  FirmwareTableProviderSignature: DWORD;   // FIRMWARE_TABLE_PROVIDER
  FirmwareTableID: DWORD;   // DWORD
  pFirmwareTableBuffer: Pointer;   // BYTE* optional, out
  BufferSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetSystemFirmwareTable';

result := DllCall("KERNEL32\GetSystemFirmwareTable"
    , "UInt", FirmwareTableProviderSignature   ; FIRMWARE_TABLE_PROVIDER
    , "UInt", FirmwareTableID   ; DWORD
    , "Ptr", pFirmwareTableBuffer   ; BYTE* optional, out
    , "UInt", BufferSize   ; DWORD
    , "UInt")   ; return: DWORD

●GetSystemFirmwareTable(FirmwareTableProviderSignature, FirmwareTableID, pFirmwareTableBuffer, BufferSize) = DLL("KERNEL32.dll", "dword GetSystemFirmwareTable(dword, dword, void*, dword)")
# 呼び出し: GetSystemFirmwareTable(FirmwareTableProviderSignature, FirmwareTableID, pFirmwareTableBuffer, BufferSize)
# FirmwareTableProviderSignature : FIRMWARE_TABLE_PROVIDER -> "dword"
# FirmwareTableID : DWORD -> "dword"
# pFirmwareTableBuffer : BYTE* optional, out -> "void*"
# BufferSize : DWORD -> "dword"
# 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)。