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InitPropVariantFromPropVariantVectorElem

関数
ベクター型PROPVARIANTの指定要素から新しいPROPVARIANTを初期化する。
DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

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

HRESULT InitPropVariantFromPropVariantVectorElem(
    const PROPVARIANT* propvarIn,
    DWORD iElem,
    PROPVARIANT* ppropvar
);

パラメーター

名前型方向説明
propvarInPROPVARIANT*inベクター型のPROPVARIANTへのポインタ。要素抽出元となる。
iElemDWORDin取り出す要素の0始まりインデックス。
ppropvarPROPVARIANT*out抽出した単一要素を保持するPROPVARIANTを受け取る出力ポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT InitPropVariantFromPropVariantVectorElem(
    const PROPVARIANT* propvarIn,
    DWORD iElem,
    PROPVARIANT* ppropvar
);
[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int InitPropVariantFromPropVariantVectorElem(
    IntPtr propvarIn,   // PROPVARIANT*
    uint iElem,   // DWORD
    IntPtr ppropvar   // PROPVARIANT* out
);
<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function InitPropVariantFromPropVariantVectorElem(
    propvarIn As IntPtr,   ' PROPVARIANT*
    iElem As UInteger,   ' DWORD
    ppropvar As IntPtr   ' PROPVARIANT* out
) As Integer
End Function
' propvarIn : PROPVARIANT*
' iElem : DWORD
' ppropvar : PROPVARIANT* out
Declare PtrSafe Function InitPropVariantFromPropVariantVectorElem Lib "propsys" ( _
    ByVal propvarIn As LongPtr, _
    ByVal iElem As Long, _
    ByVal ppropvar 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

InitPropVariantFromPropVariantVectorElem = ctypes.windll.propsys.InitPropVariantFromPropVariantVectorElem
InitPropVariantFromPropVariantVectorElem.restype = ctypes.c_int
InitPropVariantFromPropVariantVectorElem.argtypes = [
    ctypes.c_void_p,  # propvarIn : PROPVARIANT*
    wintypes.DWORD,  # iElem : DWORD
    ctypes.c_void_p,  # ppropvar : PROPVARIANT* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
InitPropVariantFromPropVariantVectorElem = Fiddle::Function.new(
  lib['InitPropVariantFromPropVariantVectorElem'],
  [
    Fiddle::TYPE_VOIDP,  # propvarIn : PROPVARIANT*
    -Fiddle::TYPE_INT,  # iElem : DWORD
    Fiddle::TYPE_VOIDP,  # ppropvar : PROPVARIANT* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "propsys")]
extern "system" {
    fn InitPropVariantFromPropVariantVectorElem(
        propvarIn: *const PROPVARIANT,  // PROPVARIANT*
        iElem: u32,  // DWORD
        ppropvar: *mut PROPVARIANT  // PROPVARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int InitPropVariantFromPropVariantVectorElem(IntPtr propvarIn, uint iElem, IntPtr ppropvar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_InitPropVariantFromPropVariantVectorElem' -Namespace Win32 -PassThru
# $api::InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
#uselib "PROPSYS.dll"
#func global InitPropVariantFromPropVariantVectorElem "InitPropVariantFromPropVariantVectorElem" sptr, sptr, sptr
; InitPropVariantFromPropVariantVectorElem varptr(propvarIn), iElem, varptr(ppropvar)   ; 戻り値は stat
; propvarIn : PROPVARIANT* -> "sptr"
; iElem : DWORD -> "sptr"
; ppropvar : PROPVARIANT* 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 "PROPSYS.dll"
#cfunc global InitPropVariantFromPropVariantVectorElem "InitPropVariantFromPropVariantVectorElem" var, int, var
; res = InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
; propvarIn : PROPVARIANT* -> "var"
; iElem : DWORD -> "int"
; ppropvar : PROPVARIANT* 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。
出力引数: 
; HRESULT InitPropVariantFromPropVariantVectorElem(PROPVARIANT* propvarIn, DWORD iElem, PROPVARIANT* ppropvar)
#uselib "PROPSYS.dll"
#cfunc global InitPropVariantFromPropVariantVectorElem "InitPropVariantFromPropVariantVectorElem" var, int, var
; res = InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
; propvarIn : PROPVARIANT* -> "var"
; iElem : DWORD -> "int"
; ppropvar : PROPVARIANT* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procInitPropVariantFromPropVariantVectorElem = propsys.NewProc("InitPropVariantFromPropVariantVectorElem")
)

// propvarIn (PROPVARIANT*), iElem (DWORD), ppropvar (PROPVARIANT* out)
r1, _, err := procInitPropVariantFromPropVariantVectorElem.Call(
	uintptr(propvarIn),
	uintptr(iElem),
	uintptr(ppropvar),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function InitPropVariantFromPropVariantVectorElem(
  propvarIn: Pointer;   // PROPVARIANT*
  iElem: DWORD;   // DWORD
  ppropvar: Pointer   // PROPVARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitPropVariantFromPropVariantVectorElem';
result := DllCall("PROPSYS\InitPropVariantFromPropVariantVectorElem"
    , "Ptr", propvarIn   ; PROPVARIANT*
    , "UInt", iElem   ; DWORD
    , "Ptr", ppropvar   ; PROPVARIANT* out
    , "Int")   ; return: HRESULT
●InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar) = DLL("PROPSYS.dll", "int InitPropVariantFromPropVariantVectorElem(void*, dword, void*)")
# 呼び出し: InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
# propvarIn : PROPVARIANT* -> "void*"
# iElem : DWORD -> "dword"
# ppropvar : PROPVARIANT* 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)。
const std = @import("std");

extern "propsys" fn InitPropVariantFromPropVariantVectorElem(
    propvarIn: [*c]PROPVARIANT, // PROPVARIANT*
    iElem: u32, // DWORD
    ppropvar: [*c]PROPVARIANT // PROPVARIANT* out
) callconv(std.os.windows.WINAPI) i32;
proc InitPropVariantFromPropVariantVectorElem(
    propvarIn: ptr PROPVARIANT,  # PROPVARIANT*
    iElem: uint32,  # DWORD
    ppropvar: ptr PROPVARIANT  # PROPVARIANT* out
): int32 {.importc: "InitPropVariantFromPropVariantVectorElem", stdcall, dynlib: "PROPSYS.dll".}
pragma(lib, "propsys");
extern(Windows)
int InitPropVariantFromPropVariantVectorElem(
    PROPVARIANT* propvarIn,   // PROPVARIANT*
    uint iElem,   // DWORD
    PROPVARIANT* ppropvar   // PROPVARIANT* out
);
ccall((:InitPropVariantFromPropVariantVectorElem, "PROPSYS.dll"), stdcall, Int32,
      (Ptr{PROPVARIANT}, UInt32, Ptr{PROPVARIANT}),
      propvarIn, iElem, ppropvar)
# propvarIn : PROPVARIANT* -> Ptr{PROPVARIANT}
# iElem : DWORD -> UInt32
# ppropvar : PROPVARIANT* out -> Ptr{PROPVARIANT}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t InitPropVariantFromPropVariantVectorElem(
    void* propvarIn,
    uint32_t iElem,
    void* ppropvar);
]]
local propsys = ffi.load("propsys")
-- propsys.InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
-- propvarIn : PROPVARIANT*
-- iElem : DWORD
-- ppropvar : PROPVARIANT* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('PROPSYS.dll');
const InitPropVariantFromPropVariantVectorElem = lib.func('__stdcall', 'InitPropVariantFromPropVariantVectorElem', 'int32_t', ['void *', 'uint32_t', 'void *']);
// InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
// propvarIn : PROPVARIANT* -> 'void *'
// iElem : DWORD -> 'uint32_t'
// ppropvar : PROPVARIANT* out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("PROPSYS.dll", {
  InitPropVariantFromPropVariantVectorElem: { parameters: ["pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar)
// propvarIn : PROPVARIANT* -> "pointer"
// iElem : DWORD -> "u32"
// ppropvar : PROPVARIANT* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t InitPropVariantFromPropVariantVectorElem(
    void* propvarIn,
    uint32_t iElem,
    void* ppropvar);
C, "PROPSYS.dll");
// $ffi->InitPropVariantFromPropVariantVectorElem(propvarIn, iElem, ppropvar);
// propvarIn : PROPVARIANT*
// iElem : DWORD
// ppropvar : PROPVARIANT* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Propsys extends StdCallLibrary {
    Propsys INSTANCE = Native.load("propsys", Propsys.class);
    int InitPropVariantFromPropVariantVectorElem(
        Pointer propvarIn,   // PROPVARIANT*
        int iElem,   // DWORD
        Pointer ppropvar   // PROPVARIANT* out
    );
}
@[Link("propsys")]
lib LibPROPSYS
  fun InitPropVariantFromPropVariantVectorElem = InitPropVariantFromPropVariantVectorElem(
    propvarIn : PROPVARIANT*,   # PROPVARIANT*
    iElem : UInt32,   # DWORD
    ppropvar : PROPVARIANT*   # PROPVARIANT* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef InitPropVariantFromPropVariantVectorElemNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>);
typedef InitPropVariantFromPropVariantVectorElemDart = int Function(Pointer<Void>, int, Pointer<Void>);
final InitPropVariantFromPropVariantVectorElem = DynamicLibrary.open('PROPSYS.dll')
    .lookupFunction<InitPropVariantFromPropVariantVectorElemNative, InitPropVariantFromPropVariantVectorElemDart>('InitPropVariantFromPropVariantVectorElem');
// propvarIn : PROPVARIANT* -> Pointer<Void>
// iElem : DWORD -> Uint32
// ppropvar : PROPVARIANT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function InitPropVariantFromPropVariantVectorElem(
  propvarIn: Pointer;   // PROPVARIANT*
  iElem: DWORD;   // DWORD
  ppropvar: Pointer   // PROPVARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitPropVariantFromPropVariantVectorElem';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "InitPropVariantFromPropVariantVectorElem"
  c_InitPropVariantFromPropVariantVectorElem :: Ptr () -> Word32 -> Ptr () -> IO Int32
-- propvarIn : PROPVARIANT* -> Ptr ()
-- iElem : DWORD -> Word32
-- ppropvar : PROPVARIANT* out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let initpropvariantfrompropvariantvectorelem =
  foreign "InitPropVariantFromPropVariantVectorElem"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* propvarIn : PROPVARIANT* -> (ptr void) *)
(* iElem : DWORD -> uint32_t *)
(* ppropvar : PROPVARIANT* out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library propsys (t "PROPSYS.dll"))
(cffi:use-foreign-library propsys)

(cffi:defcfun ("InitPropVariantFromPropVariantVectorElem" init-prop-variant-from-prop-variant-vector-elem :convention :stdcall) :int32
  (propvar-in :pointer)   ; PROPVARIANT*
  (i-elem :uint32)   ; DWORD
  (ppropvar :pointer))   ; PROPVARIANT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $InitPropVariantFromPropVariantVectorElem = Win32::API::More->new('PROPSYS',
    'int InitPropVariantFromPropVariantVectorElem(LPVOID propvarIn, DWORD iElem, LPVOID ppropvar)');
# my $ret = $InitPropVariantFromPropVariantVectorElem->Call($propvarIn, $iElem, $ppropvar);
# propvarIn : PROPVARIANT* -> LPVOID
# iElem : DWORD -> DWORD
# ppropvar : PROPVARIANT* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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