SignalFileOpen

関数

指定PIDLのファイルが開かれたことをシェルに通知する。

DLLSHELL32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// SHELL32.dll
#include <windows.h>

BOOL SignalFileOpen(
    ITEMIDLIST* pidl
);

パラメーター

名前	型	方向
pidl	ITEMIDLIST*	in

戻り値の型: BOOL

各言語での呼び出し定義

// SHELL32.dll
#include <windows.h>

BOOL SignalFileOpen(
    ITEMIDLIST* pidl
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", ExactSpelling = true)]
static extern bool SignalFileOpen(
    IntPtr pidl   // ITEMIDLIST*
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SignalFileOpen(
    pidl As IntPtr   ' ITEMIDLIST*
) As Boolean
End Function

' pidl : ITEMIDLIST*
Declare PtrSafe Function SignalFileOpen Lib "shell32" ( _
    ByVal pidl 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

SignalFileOpen = ctypes.windll.shell32.SignalFileOpen
SignalFileOpen.restype = wintypes.BOOL
SignalFileOpen.argtypes = [
    ctypes.c_void_p,  # pidl : ITEMIDLIST*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SignalFileOpen = Fiddle::Function.new(
  lib['SignalFileOpen'],
  [
    Fiddle::TYPE_VOIDP,  # pidl : ITEMIDLIST*
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SignalFileOpen(
        pidl: *mut ITEMIDLIST  // ITEMIDLIST*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll")]
public static extern bool SignalFileOpen(IntPtr pidl);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SignalFileOpen' -Namespace Win32 -PassThru
# $api::SignalFileOpen(pidl)

#uselib "SHELL32.dll"
#func global SignalFileOpen "SignalFileOpen" sptr
; SignalFileOpen varptr(pidl)   ; 戻り値は stat
; pidl : ITEMIDLIST* -> "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 "SHELL32.dll"
#cfunc global SignalFileOpen "SignalFileOpen" var
; res = SignalFileOpen(pidl)
; pidl : ITEMIDLIST* -> "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 "SHELL32.dll"
#cfunc global SignalFileOpen "SignalFileOpen" sptr
; res = SignalFileOpen(varptr(pidl))
; pidl : ITEMIDLIST* -> "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 SignalFileOpen(ITEMIDLIST* pidl)
#uselib "SHELL32.dll"
#cfunc global SignalFileOpen "SignalFileOpen" var
; res = SignalFileOpen(pidl)
; pidl : ITEMIDLIST* -> "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 SignalFileOpen(ITEMIDLIST* pidl)
#uselib "SHELL32.dll"
#cfunc global SignalFileOpen "SignalFileOpen" intptr
; res = SignalFileOpen(varptr(pidl))
; pidl : ITEMIDLIST* -> "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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSignalFileOpen = shell32.NewProc("SignalFileOpen")
)

// pidl (ITEMIDLIST*)
r1, _, err := procSignalFileOpen.Call(
	uintptr(pidl),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SignalFileOpen(
  pidl: Pointer   // ITEMIDLIST*
): BOOL; stdcall;
  external 'SHELL32.dll' name 'SignalFileOpen';

result := DllCall("SHELL32\SignalFileOpen"
    , "Ptr", pidl   ; ITEMIDLIST*
    , "Int")   ; return: BOOL

●SignalFileOpen(pidl) = DLL("SHELL32.dll", "bool SignalFileOpen(void*)")
# 呼び出し: SignalFileOpen(pidl)
# pidl : ITEMIDLIST* -> "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)。