JsDefineProperty
関数プロパティ記述子を使ってプロパティを定義する。
シグネチャ
// chakra.dll
#include <windows.h>
JsErrorCode JsDefineProperty(
void* object,
void* propertyId,
void* propertyDescriptor,
BOOLEAN* result
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| object | void* | in |
| propertyId | void* | in |
| propertyDescriptor | void* | in |
| result | 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 JsDefineProperty(
void* object,
void* propertyId,
void* propertyDescriptor,
BOOLEAN* result
);[DllImport("chakra.dll", ExactSpelling = true)]
static extern uint JsDefineProperty(
IntPtr object, // void*
IntPtr propertyId, // void*
IntPtr propertyDescriptor, // void*
out byte result // BOOLEAN* out
);<DllImport("chakra.dll", ExactSpelling:=True)>
Public Shared Function JsDefineProperty(
[object] As IntPtr, ' void*
propertyId As IntPtr, ' void*
propertyDescriptor As IntPtr, ' void*
<Out> ByRef result As Byte ' BOOLEAN* out
) As UInteger
End Function' object : void*
' propertyId : void*
' propertyDescriptor : void*
' result : BOOLEAN* out
Declare PtrSafe Function JsDefineProperty Lib "chakra" ( _
ByVal object As LongPtr, _
ByVal propertyId As LongPtr, _
ByVal propertyDescriptor As LongPtr, _
ByRef result 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
JsDefineProperty = ctypes.windll.chakra.JsDefineProperty
JsDefineProperty.restype = wintypes.DWORD
JsDefineProperty.argtypes = [
ctypes.POINTER(None), # object : void*
ctypes.POINTER(None), # propertyId : void*
ctypes.POINTER(None), # propertyDescriptor : void*
ctypes.POINTER(ctypes.c_byte), # result : BOOLEAN* out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('chakra.dll')
JsDefineProperty = Fiddle::Function.new(
lib['JsDefineProperty'],
[
Fiddle::TYPE_VOIDP, # object : void*
Fiddle::TYPE_VOIDP, # propertyId : void*
Fiddle::TYPE_VOIDP, # propertyDescriptor : void*
Fiddle::TYPE_VOIDP, # result : BOOLEAN* out
],
-Fiddle::TYPE_INT)#[link(name = "chakra")]
extern "system" {
fn JsDefineProperty(
object: *mut (), // void*
propertyId: *mut (), // void*
propertyDescriptor: *mut (), // void*
result: *mut u8 // BOOLEAN* out
) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("chakra.dll")]
public static extern uint JsDefineProperty(IntPtr object, IntPtr propertyId, IntPtr propertyDescriptor, out byte result);
"@
$api = Add-Type -MemberDefinition $sig -Name 'chakra_JsDefineProperty' -Namespace Win32 -PassThru
# $api::JsDefineProperty(object, propertyId, propertyDescriptor, result)#uselib "chakra.dll"
#func global JsDefineProperty "JsDefineProperty" sptr, sptr, sptr, sptr
; JsDefineProperty object, propertyId, propertyDescriptor, varptr(result) ; 戻り値は stat
; object : void* -> "sptr"
; propertyId : void* -> "sptr"
; propertyDescriptor : void* -> "sptr"
; result : 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 JsDefineProperty "JsDefineProperty" sptr, sptr, sptr, var ; res = JsDefineProperty(object, propertyId, propertyDescriptor, result) ; object : void* -> "sptr" ; propertyId : void* -> "sptr" ; propertyDescriptor : void* -> "sptr" ; result : 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 JsDefineProperty "JsDefineProperty" sptr, sptr, sptr, sptr ; res = JsDefineProperty(object, propertyId, propertyDescriptor, varptr(result)) ; object : void* -> "sptr" ; propertyId : void* -> "sptr" ; propertyDescriptor : void* -> "sptr" ; result : 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 JsDefineProperty(void* object, void* propertyId, void* propertyDescriptor, BOOLEAN* result) #uselib "chakra.dll" #cfunc global JsDefineProperty "JsDefineProperty" intptr, intptr, intptr, var ; res = JsDefineProperty(object, propertyId, propertyDescriptor, result) ; object : void* -> "intptr" ; propertyId : void* -> "intptr" ; propertyDescriptor : void* -> "intptr" ; result : 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 JsDefineProperty(void* object, void* propertyId, void* propertyDescriptor, BOOLEAN* result) #uselib "chakra.dll" #cfunc global JsDefineProperty "JsDefineProperty" intptr, intptr, intptr, intptr ; res = JsDefineProperty(object, propertyId, propertyDescriptor, varptr(result)) ; object : void* -> "intptr" ; propertyId : void* -> "intptr" ; propertyDescriptor : void* -> "intptr" ; result : 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")
procJsDefineProperty = chakra.NewProc("JsDefineProperty")
)
// object (void*), propertyId (void*), propertyDescriptor (void*), result (BOOLEAN* out)
r1, _, err := procJsDefineProperty.Call(
uintptr(object),
uintptr(propertyId),
uintptr(propertyDescriptor),
uintptr(result),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // JsErrorCodefunction JsDefineProperty(
object: Pointer; // void*
propertyId: Pointer; // void*
propertyDescriptor: Pointer; // void*
result: Pointer // BOOLEAN* out
): DWORD; stdcall;
external 'chakra.dll' name 'JsDefineProperty';result := DllCall("chakra\JsDefineProperty"
, "Ptr", object ; void*
, "Ptr", propertyId ; void*
, "Ptr", propertyDescriptor ; void*
, "Ptr", result ; BOOLEAN* out
, "UInt") ; return: JsErrorCode●JsDefineProperty(object, propertyId, propertyDescriptor, result) = DLL("chakra.dll", "dword JsDefineProperty(void*, void*, void*, void*)")
# 呼び出し: JsDefineProperty(object, propertyId, propertyDescriptor, result)
# object : void* -> "void*"
# propertyId : void* -> "void*"
# propertyDescriptor : void* -> "void*"
# result : 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)。