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TxfLogCreateRangeReadContext

関数

TxFログのLSN範囲を読み取るコンテキストを作成する。

DLLtxfw32.dll呼出規約winapi

シグネチャ

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

BOOL TxfLogCreateRangeReadContext(
    LPCWSTR LogPath,
    CLS_LSN BeginningLsn,
    CLS_LSN EndingLsn,
    LONGLONG* BeginningVirtualClock,
    LONGLONG* EndingVirtualClock,
    DWORD RecordTypeMask,
    void** TxfLogContext
);

パラメーター

名前	型	方向
LogPath	LPCWSTR	in
BeginningLsn	CLS_LSN	in
EndingLsn	CLS_LSN	in
BeginningVirtualClock	LONGLONG*	in
EndingVirtualClock	LONGLONG*	in
RecordTypeMask	DWORD	in
TxfLogContext	void**	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL TxfLogCreateRangeReadContext(
    LPCWSTR LogPath,
    CLS_LSN BeginningLsn,
    CLS_LSN EndingLsn,
    LONGLONG* BeginningVirtualClock,
    LONGLONG* EndingVirtualClock,
    DWORD RecordTypeMask,
    void** TxfLogContext
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("txfw32.dll", ExactSpelling = true)]
static extern bool TxfLogCreateRangeReadContext(
    [MarshalAs(UnmanagedType.LPWStr)] string LogPath,   // LPCWSTR
    CLS_LSN BeginningLsn,   // CLS_LSN
    CLS_LSN EndingLsn,   // CLS_LSN
    ref long BeginningVirtualClock,   // LONGLONG*
    ref long EndingVirtualClock,   // LONGLONG*
    uint RecordTypeMask,   // DWORD
    IntPtr TxfLogContext   // void** out
);

<DllImport("txfw32.dll", ExactSpelling:=True)>
Public Shared Function TxfLogCreateRangeReadContext(
    <MarshalAs(UnmanagedType.LPWStr)> LogPath As String,   ' LPCWSTR
    BeginningLsn As CLS_LSN,   ' CLS_LSN
    EndingLsn As CLS_LSN,   ' CLS_LSN
    ByRef BeginningVirtualClock As Long,   ' LONGLONG*
    ByRef EndingVirtualClock As Long,   ' LONGLONG*
    RecordTypeMask As UInteger,   ' DWORD
    TxfLogContext As IntPtr   ' void** out
) As Boolean
End Function

' LogPath : LPCWSTR
' BeginningLsn : CLS_LSN
' EndingLsn : CLS_LSN
' BeginningVirtualClock : LONGLONG*
' EndingVirtualClock : LONGLONG*
' RecordTypeMask : DWORD
' TxfLogContext : void** out
Declare PtrSafe Function TxfLogCreateRangeReadContext Lib "txfw32" ( _
    ByVal LogPath As LongPtr, _
    ByVal BeginningLsn As LongPtr, _
    ByVal EndingLsn As LongPtr, _
    ByRef BeginningVirtualClock As LongLong, _
    ByRef EndingVirtualClock As LongLong, _
    ByVal RecordTypeMask As Long, _
    ByVal TxfLogContext 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

TxfLogCreateRangeReadContext = ctypes.windll.txfw32.TxfLogCreateRangeReadContext
TxfLogCreateRangeReadContext.restype = wintypes.BOOL
TxfLogCreateRangeReadContext.argtypes = [
    wintypes.LPCWSTR,  # LogPath : LPCWSTR
    CLS_LSN,  # BeginningLsn : CLS_LSN
    CLS_LSN,  # EndingLsn : CLS_LSN
    ctypes.POINTER(ctypes.c_longlong),  # BeginningVirtualClock : LONGLONG*
    ctypes.POINTER(ctypes.c_longlong),  # EndingVirtualClock : LONGLONG*
    wintypes.DWORD,  # RecordTypeMask : DWORD
    ctypes.c_void_p,  # TxfLogContext : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('txfw32.dll')
TxfLogCreateRangeReadContext = Fiddle::Function.new(
  lib['TxfLogCreateRangeReadContext'],
  [
    Fiddle::TYPE_VOIDP,  # LogPath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # BeginningLsn : CLS_LSN
    Fiddle::TYPE_VOIDP,  # EndingLsn : CLS_LSN
    Fiddle::TYPE_VOIDP,  # BeginningVirtualClock : LONGLONG*
    Fiddle::TYPE_VOIDP,  # EndingVirtualClock : LONGLONG*
    -Fiddle::TYPE_INT,  # RecordTypeMask : DWORD
    Fiddle::TYPE_VOIDP,  # TxfLogContext : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "txfw32")]
extern "system" {
    fn TxfLogCreateRangeReadContext(
        LogPath: *const u16,  // LPCWSTR
        BeginningLsn: CLS_LSN,  // CLS_LSN
        EndingLsn: CLS_LSN,  // CLS_LSN
        BeginningVirtualClock: *mut i64,  // LONGLONG*
        EndingVirtualClock: *mut i64,  // LONGLONG*
        RecordTypeMask: u32,  // DWORD
        TxfLogContext: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("txfw32.dll")]
public static extern bool TxfLogCreateRangeReadContext([MarshalAs(UnmanagedType.LPWStr)] string LogPath, CLS_LSN BeginningLsn, CLS_LSN EndingLsn, ref long BeginningVirtualClock, ref long EndingVirtualClock, uint RecordTypeMask, IntPtr TxfLogContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'txfw32_TxfLogCreateRangeReadContext' -Namespace Win32 -PassThru
# $api::TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, BeginningVirtualClock, EndingVirtualClock, RecordTypeMask, TxfLogContext)

#uselib "txfw32.dll"
#func global TxfLogCreateRangeReadContext "TxfLogCreateRangeReadContext" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; TxfLogCreateRangeReadContext LogPath, BeginningLsn, EndingLsn, varptr(BeginningVirtualClock), varptr(EndingVirtualClock), RecordTypeMask, TxfLogContext   ; 戻り値は stat
; LogPath : LPCWSTR -> "sptr"
; BeginningLsn : CLS_LSN -> "sptr"
; EndingLsn : CLS_LSN -> "sptr"
; BeginningVirtualClock : LONGLONG* -> "sptr"
; EndingVirtualClock : LONGLONG* -> "sptr"
; RecordTypeMask : DWORD -> "sptr"
; TxfLogContext : void** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。

出力引数:

#uselib "txfw32.dll"
#cfunc global TxfLogCreateRangeReadContext "TxfLogCreateRangeReadContext" wstr, int, int, var, var, int, sptr
; res = TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, BeginningVirtualClock, EndingVirtualClock, RecordTypeMask, TxfLogContext)
; LogPath : LPCWSTR -> "wstr"
; BeginningLsn : CLS_LSN -> "int"
; EndingLsn : CLS_LSN -> "int"
; BeginningVirtualClock : LONGLONG* -> "var"
; EndingVirtualClock : LONGLONG* -> "var"
; RecordTypeMask : DWORD -> "int"
; TxfLogContext : void** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。#uselib "txfw32.dll"
#cfunc global TxfLogCreateRangeReadContext "TxfLogCreateRangeReadContext" wstr, int, int, sptr, sptr, int, sptr
; res = TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, varptr(BeginningVirtualClock), varptr(EndingVirtualClock), RecordTypeMask, TxfLogContext)
; LogPath : LPCWSTR -> "wstr"
; BeginningLsn : CLS_LSN -> "int"
; EndingLsn : CLS_LSN -> "int"
; BeginningVirtualClock : LONGLONG* -> "sptr"
; EndingVirtualClock : LONGLONG* -> "sptr"
; RecordTypeMask : DWORD -> "int"
; TxfLogContext : void** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; BOOL TxfLogCreateRangeReadContext(LPCWSTR LogPath, CLS_LSN BeginningLsn, CLS_LSN EndingLsn, LONGLONG* BeginningVirtualClock, LONGLONG* EndingVirtualClock, DWORD RecordTypeMask, void** TxfLogContext)
#uselib "txfw32.dll"
#cfunc global TxfLogCreateRangeReadContext "TxfLogCreateRangeReadContext" wstr, int, int, var, var, int, intptr
; res = TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, BeginningVirtualClock, EndingVirtualClock, RecordTypeMask, TxfLogContext)
; LogPath : LPCWSTR -> "wstr"
; BeginningLsn : CLS_LSN -> "int"
; EndingLsn : CLS_LSN -> "int"
; BeginningVirtualClock : LONGLONG* -> "var"
; EndingVirtualClock : LONGLONG* -> "var"
; RecordTypeMask : DWORD -> "int"
; TxfLogContext : void** out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 TxfLogCreateRangeReadContext(LPCWSTR LogPath, CLS_LSN BeginningLsn, CLS_LSN EndingLsn, LONGLONG* BeginningVirtualClock, LONGLONG* EndingVirtualClock, DWORD RecordTypeMask, void** TxfLogContext)
#uselib "txfw32.dll"
#cfunc global TxfLogCreateRangeReadContext "TxfLogCreateRangeReadContext" wstr, int, int, intptr, intptr, int, intptr
; res = TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, varptr(BeginningVirtualClock), varptr(EndingVirtualClock), RecordTypeMask, TxfLogContext)
; LogPath : LPCWSTR -> "wstr"
; BeginningLsn : CLS_LSN -> "int"
; EndingLsn : CLS_LSN -> "int"
; BeginningVirtualClock : LONGLONG* -> "intptr"
; EndingVirtualClock : LONGLONG* -> "intptr"
; RecordTypeMask : DWORD -> "int"
; TxfLogContext : void** out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	txfw32 = windows.NewLazySystemDLL("txfw32.dll")
	procTxfLogCreateRangeReadContext = txfw32.NewProc("TxfLogCreateRangeReadContext")
)

// LogPath (LPCWSTR), BeginningLsn (CLS_LSN), EndingLsn (CLS_LSN), BeginningVirtualClock (LONGLONG*), EndingVirtualClock (LONGLONG*), RecordTypeMask (DWORD), TxfLogContext (void** out)
r1, _, err := procTxfLogCreateRangeReadContext.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(LogPath))),
	uintptr(BeginningLsn),
	uintptr(EndingLsn),
	uintptr(BeginningVirtualClock),
	uintptr(EndingVirtualClock),
	uintptr(RecordTypeMask),
	uintptr(TxfLogContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function TxfLogCreateRangeReadContext(
  LogPath: PWideChar;   // LPCWSTR
  BeginningLsn: CLS_LSN;   // CLS_LSN
  EndingLsn: CLS_LSN;   // CLS_LSN
  BeginningVirtualClock: Pointer;   // LONGLONG*
  EndingVirtualClock: Pointer;   // LONGLONG*
  RecordTypeMask: DWORD;   // DWORD
  TxfLogContext: Pointer   // void** out
): BOOL; stdcall;
  external 'txfw32.dll' name 'TxfLogCreateRangeReadContext';

result := DllCall("txfw32\TxfLogCreateRangeReadContext"
    , "WStr", LogPath   ; LPCWSTR
    , "Ptr", BeginningLsn   ; CLS_LSN
    , "Ptr", EndingLsn   ; CLS_LSN
    , "Ptr", BeginningVirtualClock   ; LONGLONG*
    , "Ptr", EndingVirtualClock   ; LONGLONG*
    , "UInt", RecordTypeMask   ; DWORD
    , "Ptr", TxfLogContext   ; void** out
    , "Int")   ; return: BOOL

●TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, BeginningVirtualClock, EndingVirtualClock, RecordTypeMask, TxfLogContext) = DLL("txfw32.dll", "bool TxfLogCreateRangeReadContext(char*, void*, void*, void*, void*, dword, void*)")
# 呼び出し: TxfLogCreateRangeReadContext(LogPath, BeginningLsn, EndingLsn, BeginningVirtualClock, EndingVirtualClock, RecordTypeMask, TxfLogContext)
# LogPath : LPCWSTR -> "char*"
# BeginningLsn : CLS_LSN -> "void*"
# EndingLsn : CLS_LSN -> "void*"
# BeginningVirtualClock : LONGLONG* -> "void*"
# EndingVirtualClock : LONGLONG* -> "void*"
# RecordTypeMask : DWORD -> "dword"
# TxfLogContext : void** 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)。