ホーム › System.ApplicationInstallationAndServicing › GetDeltaInfoA

GetDeltaInfoA

関数

デルタファイルからヘッダー情報を取得する(ANSI版)。

DLLmsdelta.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// msdelta.dll  (ANSI / -A)
#include <windows.h>

BOOL GetDeltaInfoA(
    LPCSTR lpDeltaName,
    DELTA_HEADER_INFO* lpHeaderInfo
);

パラメーター

名前	型	方向
lpDeltaName	LPCSTR	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  (ANSI / -A)
#include <windows.h>

BOOL GetDeltaInfoA(
    LPCSTR lpDeltaName,
    DELTA_HEADER_INFO* lpHeaderInfo
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern bool GetDeltaInfoA(
    [MarshalAs(UnmanagedType.LPStr)] string lpDeltaName,   // LPCSTR
    IntPtr lpHeaderInfo   // DELTA_HEADER_INFO* out
);

<DllImport("msdelta.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function GetDeltaInfoA(
    <MarshalAs(UnmanagedType.LPStr)> lpDeltaName As String,   ' LPCSTR
    lpHeaderInfo As IntPtr   ' DELTA_HEADER_INFO* out
) As Boolean
End Function

' lpDeltaName : LPCSTR
' lpHeaderInfo : DELTA_HEADER_INFO* out
Declare PtrSafe Function GetDeltaInfoA Lib "msdelta" ( _
    ByVal lpDeltaName As String, _
    ByVal lpHeaderInfo 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

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdelta.dll')
GetDeltaInfoA = Fiddle::Function.new(
  lib['GetDeltaInfoA'],
  [
    Fiddle::TYPE_VOIDP,  # lpDeltaName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpHeaderInfo : DELTA_HEADER_INFO* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdelta")]
extern "system" {
    fn GetDeltaInfoA(
        lpDeltaName: *const u8,  // LPCSTR
        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.Ansi)]
public static extern bool GetDeltaInfoA([MarshalAs(UnmanagedType.LPStr)] string lpDeltaName, IntPtr lpHeaderInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdelta_GetDeltaInfoA' -Namespace Win32 -PassThru
# $api::GetDeltaInfoA(lpDeltaName, lpHeaderInfo)

#uselib "msdelta.dll"
#func global GetDeltaInfoA "GetDeltaInfoA" sptr, sptr
; GetDeltaInfoA lpDeltaName, varptr(lpHeaderInfo)   ; 戻り値は stat
; lpDeltaName : LPCSTR -> "sptr"
; lpHeaderInfo : DELTA_HEADER_INFO* 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。

出力引数:

#uselib "msdelta.dll"
#cfunc global GetDeltaInfoA "GetDeltaInfoA" str, var
; res = GetDeltaInfoA(lpDeltaName, lpHeaderInfo)
; lpDeltaName : LPCSTR -> "str"
; 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 GetDeltaInfoA "GetDeltaInfoA" str, sptr
; res = GetDeltaInfoA(lpDeltaName, varptr(lpHeaderInfo))
; lpDeltaName : LPCSTR -> "str"
; 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 GetDeltaInfoA(LPCSTR lpDeltaName, DELTA_HEADER_INFO* lpHeaderInfo)
#uselib "msdelta.dll"
#cfunc global GetDeltaInfoA "GetDeltaInfoA" str, var
; res = GetDeltaInfoA(lpDeltaName, lpHeaderInfo)
; lpDeltaName : LPCSTR -> "str"
; 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 GetDeltaInfoA(LPCSTR lpDeltaName, DELTA_HEADER_INFO* lpHeaderInfo)
#uselib "msdelta.dll"
#cfunc global GetDeltaInfoA "GetDeltaInfoA" str, intptr
; res = GetDeltaInfoA(lpDeltaName, varptr(lpHeaderInfo))
; lpDeltaName : LPCSTR -> "str"
; 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")
	procGetDeltaInfoA = msdelta.NewProc("GetDeltaInfoA")
)

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

function GetDeltaInfoA(
  lpDeltaName: PAnsiChar;   // LPCSTR
  lpHeaderInfo: Pointer   // DELTA_HEADER_INFO* out
): BOOL; stdcall;
  external 'msdelta.dll' name 'GetDeltaInfoA';

result := DllCall("msdelta\GetDeltaInfoA"
    , "AStr", lpDeltaName   ; LPCSTR
    , "Ptr", lpHeaderInfo   ; DELTA_HEADER_INFO* out
    , "Int")   ; return: BOOL

●GetDeltaInfoA(lpDeltaName, lpHeaderInfo) = DLL("msdelta.dll", "bool GetDeltaInfoA(char*, void*)")
# 呼び出し: GetDeltaInfoA(lpDeltaName, lpHeaderInfo)
# lpDeltaName : LPCSTR -> "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)。