JsHasProperty
関数オブジェクトが指定プロパティを持つか判定する。
シグネチャ
// chakra.dll
#include <windows.h>
JsErrorCode JsHasProperty(
void* object,
void* propertyId,
BOOLEAN* hasProperty
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| object | void* | in |
| propertyId | void* | in |
| hasProperty | BOOLEAN* | out |
戻り値の型: JsErrorCode
各言語での呼び出し定義
// chakra.dll
#include <windows.h>
JsErrorCode JsHasProperty(
void* object,
void* propertyId,
BOOLEAN* hasProperty
);[DllImport("chakra.dll", ExactSpelling = true)]
static extern uint JsHasProperty(
IntPtr object, // void*
IntPtr propertyId, // void*
out byte hasProperty // BOOLEAN* out
);<DllImport("chakra.dll", ExactSpelling:=True)>
Public Shared Function JsHasProperty(
[object] As IntPtr, ' void*
propertyId As IntPtr, ' void*
<Out> ByRef hasProperty As Byte ' BOOLEAN* out
) As UInteger
End Function' object : void*
' propertyId : void*
' hasProperty : BOOLEAN* out
Declare PtrSafe Function JsHasProperty Lib "chakra" ( _
ByVal object As LongPtr, _
ByVal propertyId As LongPtr, _
ByRef hasProperty As Byte) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
JsHasProperty = ctypes.windll.chakra.JsHasProperty
JsHasProperty.restype = wintypes.DWORD
JsHasProperty.argtypes = [
ctypes.POINTER(None), # object : void*
ctypes.POINTER(None), # propertyId : void*
ctypes.POINTER(ctypes.c_byte), # hasProperty : BOOLEAN* out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('chakra.dll')
JsHasProperty = Fiddle::Function.new(
lib['JsHasProperty'],
[
Fiddle::TYPE_VOIDP, # object : void*
Fiddle::TYPE_VOIDP, # propertyId : void*
Fiddle::TYPE_VOIDP, # hasProperty : BOOLEAN* out
],
-Fiddle::TYPE_INT)#[link(name = "chakra")]
extern "system" {
fn JsHasProperty(
object: *mut (), // void*
propertyId: *mut (), // void*
hasProperty: *mut u8 // BOOLEAN* out
) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("chakra.dll")]
public static extern uint JsHasProperty(IntPtr object, IntPtr propertyId, out byte hasProperty);
"@
$api = Add-Type -MemberDefinition $sig -Name 'chakra_JsHasProperty' -Namespace Win32 -PassThru
# $api::JsHasProperty(object, propertyId, hasProperty)#uselib "chakra.dll"
#func global JsHasProperty "JsHasProperty" sptr, sptr, sptr
; JsHasProperty object, propertyId, varptr(hasProperty) ; 戻り値は stat
; object : void* -> "sptr"
; propertyId : void* -> "sptr"
; hasProperty : BOOLEAN* 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 "chakra.dll" #cfunc global JsHasProperty "JsHasProperty" sptr, sptr, var ; res = JsHasProperty(object, propertyId, hasProperty) ; object : void* -> "sptr" ; propertyId : void* -> "sptr" ; hasProperty : BOOLEAN* 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 "chakra.dll" #cfunc global JsHasProperty "JsHasProperty" sptr, sptr, sptr ; res = JsHasProperty(object, propertyId, varptr(hasProperty)) ; object : void* -> "sptr" ; propertyId : void* -> "sptr" ; hasProperty : BOOLEAN* 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:
; JsErrorCode JsHasProperty(void* object, void* propertyId, BOOLEAN* hasProperty) #uselib "chakra.dll" #cfunc global JsHasProperty "JsHasProperty" intptr, intptr, var ; res = JsHasProperty(object, propertyId, hasProperty) ; object : void* -> "intptr" ; propertyId : void* -> "intptr" ; hasProperty : BOOLEAN* 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。; JsErrorCode JsHasProperty(void* object, void* propertyId, BOOLEAN* hasProperty) #uselib "chakra.dll" #cfunc global JsHasProperty "JsHasProperty" intptr, intptr, intptr ; res = JsHasProperty(object, propertyId, varptr(hasProperty)) ; object : void* -> "intptr" ; propertyId : void* -> "intptr" ; hasProperty : BOOLEAN* 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 (
chakra = windows.NewLazySystemDLL("chakra.dll")
procJsHasProperty = chakra.NewProc("JsHasProperty")
)
// object (void*), propertyId (void*), hasProperty (BOOLEAN* out)
r1, _, err := procJsHasProperty.Call(
uintptr(object),
uintptr(propertyId),
uintptr(hasProperty),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // JsErrorCodefunction JsHasProperty(
object: Pointer; // void*
propertyId: Pointer; // void*
hasProperty: Pointer // BOOLEAN* out
): DWORD; stdcall;
external 'chakra.dll' name 'JsHasProperty';result := DllCall("chakra\JsHasProperty"
, "Ptr", object ; void*
, "Ptr", propertyId ; void*
, "Ptr", hasProperty ; BOOLEAN* out
, "UInt") ; return: JsErrorCode●JsHasProperty(object, propertyId, hasProperty) = DLL("chakra.dll", "dword JsHasProperty(void*, void*, void*)")
# 呼び出し: JsHasProperty(object, propertyId, hasProperty)
# object : void* -> "void*"
# propertyId : void* -> "void*"
# hasProperty : BOOLEAN* 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)。