TxfReadMetadataInfo

// txfw32.dll
#include <windows.h>

BOOL TxfReadMetadataInfo(
    HANDLE FileHandle,
    TXF_ID* TxfFileId,
    CLS_LSN* LastLsn,
    DWORD* TransactionState,
    GUID* LockingTransaction
);

<DllImport("txfw32.dll", ExactSpelling:=True)>
Public Shared Function TxfReadMetadataInfo(
    FileHandle As IntPtr,   ' HANDLE
    TxfFileId As IntPtr,   ' TXF_ID* out
    LastLsn As IntPtr,   ' CLS_LSN* out
    <Out> ByRef TransactionState As UInteger,   ' DWORD* out
    <Out> ByRef LockingTransaction As Guid   ' GUID* out
) As Boolean
End Function

' FileHandle : HANDLE
' TxfFileId : TXF_ID* out
' LastLsn : CLS_LSN* out
' TransactionState : DWORD* out
' LockingTransaction : GUID* out
Declare PtrSafe Function TxfReadMetadataInfo Lib "txfw32" ( _
    ByVal FileHandle As LongPtr, _
    ByVal TxfFileId As LongPtr, _
    ByVal LastLsn As LongPtr, _
    ByRef TransactionState As Long, _
    ByVal LockingTransaction 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

TxfReadMetadataInfo = ctypes.windll.txfw32.TxfReadMetadataInfo
TxfReadMetadataInfo.restype = wintypes.BOOL
TxfReadMetadataInfo.argtypes = [
    wintypes.HANDLE,  # FileHandle : HANDLE
    ctypes.c_void_p,  # TxfFileId : TXF_ID* out
    ctypes.c_void_p,  # LastLsn : CLS_LSN* out
    ctypes.POINTER(wintypes.DWORD),  # TransactionState : DWORD* out
    ctypes.c_void_p,  # LockingTransaction : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('txfw32.dll')
TxfReadMetadataInfo = Fiddle::Function.new(
  lib['TxfReadMetadataInfo'],
  [
    Fiddle::TYPE_VOIDP,  # FileHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # TxfFileId : TXF_ID* out
    Fiddle::TYPE_VOIDP,  # LastLsn : CLS_LSN* out
    Fiddle::TYPE_VOIDP,  # TransactionState : DWORD* out
    Fiddle::TYPE_VOIDP,  # LockingTransaction : GUID* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "txfw32")]
extern "system" {
    fn TxfReadMetadataInfo(
        FileHandle: *mut core::ffi::c_void,  // HANDLE
        TxfFileId: *mut TXF_ID,  // TXF_ID* out
        LastLsn: *mut CLS_LSN,  // CLS_LSN* out
        TransactionState: *mut u32,  // DWORD* out
        LockingTransaction: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("txfw32.dll")]
public static extern bool TxfReadMetadataInfo(IntPtr FileHandle, IntPtr TxfFileId, IntPtr LastLsn, out uint TransactionState, out Guid LockingTransaction);
"@
$api = Add-Type -MemberDefinition $sig -Name 'txfw32_TxfReadMetadataInfo' -Namespace Win32 -PassThru
# $api::TxfReadMetadataInfo(FileHandle, TxfFileId, LastLsn, TransactionState, LockingTransaction)

#uselib "txfw32.dll"
#func global TxfReadMetadataInfo "TxfReadMetadataInfo" sptr, sptr, sptr, sptr, sptr
; TxfReadMetadataInfo FileHandle, varptr(TxfFileId), varptr(LastLsn), varptr(TransactionState), varptr(LockingTransaction)   ; 戻り値は stat
; FileHandle : HANDLE -> "sptr"
; TxfFileId : TXF_ID* out -> "sptr"
; LastLsn : CLS_LSN* out -> "sptr"
; TransactionState : DWORD* out -> "sptr"
; LockingTransaction : GUID* 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 "txfw32.dll"
#cfunc global TxfReadMetadataInfo "TxfReadMetadataInfo" sptr, var, var, var, var
; res = TxfReadMetadataInfo(FileHandle, TxfFileId, LastLsn, TransactionState, LockingTransaction)
; FileHandle : HANDLE -> "sptr"
; TxfFileId : TXF_ID* out -> "var"
; LastLsn : CLS_LSN* out -> "var"
; TransactionState : DWORD* out -> "var"
; LockingTransaction : GUID* 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。

; BOOL TxfReadMetadataInfo(HANDLE FileHandle, TXF_ID* TxfFileId, CLS_LSN* LastLsn, DWORD* TransactionState, GUID* LockingTransaction)
#uselib "txfw32.dll"
#cfunc global TxfReadMetadataInfo "TxfReadMetadataInfo" intptr, var, var, var, var
; res = TxfReadMetadataInfo(FileHandle, TxfFileId, LastLsn, TransactionState, LockingTransaction)
; FileHandle : HANDLE -> "intptr"
; TxfFileId : TXF_ID* out -> "var"
; LastLsn : CLS_LSN* out -> "var"
; TransactionState : DWORD* out -> "var"
; LockingTransaction : GUID* 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 (
	txfw32 = windows.NewLazySystemDLL("txfw32.dll")
	procTxfReadMetadataInfo = txfw32.NewProc("TxfReadMetadataInfo")
)

// FileHandle (HANDLE), TxfFileId (TXF_ID* out), LastLsn (CLS_LSN* out), TransactionState (DWORD* out), LockingTransaction (GUID* out)
r1, _, err := procTxfReadMetadataInfo.Call(
	uintptr(FileHandle),
	uintptr(TxfFileId),
	uintptr(LastLsn),
	uintptr(TransactionState),
	uintptr(LockingTransaction),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function TxfReadMetadataInfo(
  FileHandle: THandle;   // HANDLE
  TxfFileId: Pointer;   // TXF_ID* out
  LastLsn: Pointer;   // CLS_LSN* out
  TransactionState: Pointer;   // DWORD* out
  LockingTransaction: PGUID   // GUID* out
): BOOL; stdcall;
  external 'txfw32.dll' name 'TxfReadMetadataInfo';

result := DllCall("txfw32\TxfReadMetadataInfo"
    , "Ptr", FileHandle   ; HANDLE
    , "Ptr", TxfFileId   ; TXF_ID* out
    , "Ptr", LastLsn   ; CLS_LSN* out
    , "Ptr", TransactionState   ; DWORD* out
    , "Ptr", LockingTransaction   ; GUID* out
    , "Int")   ; return: BOOL

●TxfReadMetadataInfo(FileHandle, TxfFileId, LastLsn, TransactionState, LockingTransaction) = DLL("txfw32.dll", "bool TxfReadMetadataInfo(void*, void*, void*, void*, void*)")
# 呼び出し: TxfReadMetadataInfo(FileHandle, TxfFileId, LastLsn, TransactionState, LockingTransaction)
# FileHandle : HANDLE -> "void*"
# TxfFileId : TXF_ID* out -> "void*"
# LastLsn : CLS_LSN* out -> "void*"
# TransactionState : DWORD* out -> "void*"
# LockingTransaction : GUID* 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)。