ホーム › System.ApplicationInstallationAndServicing › GetDeltaInfoW

GetDeltaInfoW

関数

デルタファイルからヘッダー情報を取得する(Unicode版)。

DLLmsdelta.dll文字セットUnicode (-W)呼出規約winapi

シグネチャ

// msdelta.dll  (Unicode / -W)
#include <windows.h>

BOOL GetDeltaInfoW(
    LPCWSTR lpDeltaName,
    DELTA_HEADER_INFO* lpHeaderInfo
);

パラメーター

名前	型	方向
lpDeltaName	LPCWSTR	in
lpHeaderInfo	DELTA_HEADER_INFO*	out

戻り値の型: BOOL

各言語での呼び出し定義

// msdelta.dll  (Unicode / -W)
#include <windows.h>

BOOL GetDeltaInfoW(
    LPCWSTR lpDeltaName,
    DELTA_HEADER_INFO* lpHeaderInfo
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern bool GetDeltaInfoW(
    [MarshalAs(UnmanagedType.LPWStr)] string lpDeltaName,   // LPCWSTR
    IntPtr lpHeaderInfo   // DELTA_HEADER_INFO* out
);

<DllImport("msdelta.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetDeltaInfoW(
    <MarshalAs(UnmanagedType.LPWStr)> lpDeltaName As String,   ' LPCWSTR
    lpHeaderInfo As IntPtr   ' DELTA_HEADER_INFO* out
) As Boolean
End Function

' lpDeltaName : LPCWSTR
' lpHeaderInfo : DELTA_HEADER_INFO* out
Declare PtrSafe Function GetDeltaInfoW Lib "msdelta" ( _
    ByVal lpDeltaName As LongPtr, _
    ByVal lpHeaderInfo As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetDeltaInfoW = ctypes.windll.msdelta.GetDeltaInfoW
GetDeltaInfoW.restype = wintypes.BOOL
GetDeltaInfoW.argtypes = [
    wintypes.LPCWSTR,  # lpDeltaName : LPCWSTR
    ctypes.c_void_p,  # lpHeaderInfo : DELTA_HEADER_INFO* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdelta.dll')
GetDeltaInfoW = Fiddle::Function.new(
  lib['GetDeltaInfoW'],
  [
    Fiddle::TYPE_VOIDP,  # lpDeltaName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpHeaderInfo : DELTA_HEADER_INFO* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msdelta")]
extern "system" {
    fn GetDeltaInfoW(
        lpDeltaName: *const u16,  // LPCWSTR
        lpHeaderInfo: *mut DELTA_HEADER_INFO  // DELTA_HEADER_INFO* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll", CharSet = CharSet.Unicode)]
public static extern bool GetDeltaInfoW([MarshalAs(UnmanagedType.LPWStr)] string lpDeltaName, IntPtr lpHeaderInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdelta_GetDeltaInfoW' -Namespace Win32 -PassThru
# $api::GetDeltaInfoW(lpDeltaName, lpHeaderInfo)

#uselib "msdelta.dll"
#func global GetDeltaInfoW "GetDeltaInfoW" wptr, wptr
; GetDeltaInfoW lpDeltaName, varptr(lpHeaderInfo)   ; 戻り値は stat
; lpDeltaName : LPCWSTR -> "wptr"
; lpHeaderInfo : DELTA_HEADER_INFO* out -> "wptr"
; ※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 "msdelta.dll"
#cfunc global GetDeltaInfoW "GetDeltaInfoW" wstr, var
; res = GetDeltaInfoW(lpDeltaName, lpHeaderInfo)
; lpDeltaName : LPCWSTR -> "wstr"
; lpHeaderInfo : DELTA_HEADER_INFO* 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。#uselib "msdelta.dll"
#cfunc global GetDeltaInfoW "GetDeltaInfoW" wstr, sptr
; res = GetDeltaInfoW(lpDeltaName, varptr(lpHeaderInfo))
; lpDeltaName : LPCWSTR -> "wstr"
; lpHeaderInfo : DELTA_HEADER_INFO* out -> "sptr"
; ※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 GetDeltaInfoW(LPCWSTR lpDeltaName, DELTA_HEADER_INFO* lpHeaderInfo)
#uselib "msdelta.dll"
#cfunc global GetDeltaInfoW "GetDeltaInfoW" wstr, var
; res = GetDeltaInfoW(lpDeltaName, lpHeaderInfo)
; lpDeltaName : LPCWSTR -> "wstr"
; lpHeaderInfo : DELTA_HEADER_INFO* 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 GetDeltaInfoW(LPCWSTR lpDeltaName, DELTA_HEADER_INFO* lpHeaderInfo)
#uselib "msdelta.dll"
#cfunc global GetDeltaInfoW "GetDeltaInfoW" wstr, intptr
; res = GetDeltaInfoW(lpDeltaName, varptr(lpHeaderInfo))
; lpDeltaName : LPCWSTR -> "wstr"
; lpHeaderInfo : DELTA_HEADER_INFO* out -> "intptr"
; ※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 (
	msdelta = windows.NewLazySystemDLL("msdelta.dll")
	procGetDeltaInfoW = msdelta.NewProc("GetDeltaInfoW")
)

// lpDeltaName (LPCWSTR), lpHeaderInfo (DELTA_HEADER_INFO* out)
r1, _, err := procGetDeltaInfoW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpDeltaName))),
	uintptr(lpHeaderInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetDeltaInfoW(
  lpDeltaName: PWideChar;   // LPCWSTR
  lpHeaderInfo: Pointer   // DELTA_HEADER_INFO* out
): BOOL; stdcall;
  external 'msdelta.dll' name 'GetDeltaInfoW';

result := DllCall("msdelta\GetDeltaInfoW"
    , "WStr", lpDeltaName   ; LPCWSTR
    , "Ptr", lpHeaderInfo   ; DELTA_HEADER_INFO* out
    , "Int")   ; return: BOOL

●GetDeltaInfoW(lpDeltaName, lpHeaderInfo) = DLL("msdelta.dll", "bool GetDeltaInfoW(char*, void*)")
# 呼び出し: GetDeltaInfoW(lpDeltaName, lpHeaderInfo)
# lpDeltaName : LPCWSTR -> "char*"
# lpHeaderInfo : DELTA_HEADER_INFO* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。