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PropVariantToUInt16Vector

関数
PROPVARIANTから符号なし16ビット整数の配列を取り出す。
DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

HRESULT PropVariantToUInt16Vector(
    const PROPVARIANT* propvar,
    WORD* prgn,
    DWORD crgn,
    DWORD* pcElem
);

パラメーター

名前方向説明
propvarPROPVARIANT*in変換元のPROPVARIANTへのポインタ。WORDベクターへの変換対象を指す。
prgnWORD*out変換結果のWORD配列を書き込む出力バッファへのポインタ。
crgnDWORDinprgn配列の容量(要素数)。
pcElemDWORD*out実際に書き込まれた要素数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 PropVariantToUInt16Vector(
    const PROPVARIANT* propvar,
    WORD* prgn,
    DWORD crgn,
    DWORD* pcElem
);
[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int PropVariantToUInt16Vector(
    IntPtr propvar,   // PROPVARIANT*
    out ushort prgn,   // WORD* out
    uint crgn,   // DWORD
    out uint pcElem   // DWORD* out
);
<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToUInt16Vector(
    propvar As IntPtr,   ' PROPVARIANT*
    <Out> ByRef prgn As UShort,   ' WORD* out
    crgn As UInteger,   ' DWORD
    <Out> ByRef pcElem As UInteger   ' DWORD* out
) As Integer
End Function
' propvar : PROPVARIANT*
' prgn : WORD* out
' crgn : DWORD
' pcElem : DWORD* out
Declare PtrSafe Function PropVariantToUInt16Vector Lib "propsys" ( _
    ByVal propvar As LongPtr, _
    ByRef prgn As Integer, _
    ByVal crgn As Long, _
    ByRef pcElem As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

PropVariantToUInt16Vector = ctypes.windll.propsys.PropVariantToUInt16Vector
PropVariantToUInt16Vector.restype = ctypes.c_int
PropVariantToUInt16Vector.argtypes = [
    ctypes.c_void_p,  # propvar : PROPVARIANT*
    ctypes.POINTER(ctypes.c_ushort),  # prgn : WORD* out
    wintypes.DWORD,  # crgn : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcElem : DWORD* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToUInt16Vector = Fiddle::Function.new(
  lib['PropVariantToUInt16Vector'],
  [
    Fiddle::TYPE_VOIDP,  # propvar : PROPVARIANT*
    Fiddle::TYPE_VOIDP,  # prgn : WORD* out
    -Fiddle::TYPE_INT,  # crgn : DWORD
    Fiddle::TYPE_VOIDP,  # pcElem : DWORD* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "propsys")]
extern "system" {
    fn PropVariantToUInt16Vector(
        propvar: *const PROPVARIANT,  // PROPVARIANT*
        prgn: *mut u16,  // WORD* out
        crgn: u32,  // DWORD
        pcElem: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PropVariantToUInt16Vector(IntPtr propvar, out ushort prgn, uint crgn, out uint pcElem);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToUInt16Vector' -Namespace Win32 -PassThru
# $api::PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
#uselib "PROPSYS.dll"
#func global PropVariantToUInt16Vector "PropVariantToUInt16Vector" sptr, sptr, sptr, sptr
; PropVariantToUInt16Vector varptr(propvar), varptr(prgn), crgn, varptr(pcElem)   ; 戻り値は stat
; propvar : PROPVARIANT* -> "sptr"
; prgn : WORD* out -> "sptr"
; crgn : DWORD -> "sptr"
; pcElem : DWORD* 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 PropVariantToUInt16Vector "PropVariantToUInt16Vector" var, var, int, var
; res = PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
; propvar : PROPVARIANT* -> "var"
; prgn : WORD* out -> "var"
; crgn : DWORD -> "int"
; pcElem : DWORD* 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 PropVariantToUInt16Vector(PROPVARIANT* propvar, WORD* prgn, DWORD crgn, DWORD* pcElem)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToUInt16Vector "PropVariantToUInt16Vector" var, var, int, var
; res = PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
; propvar : PROPVARIANT* -> "var"
; prgn : WORD* out -> "var"
; crgn : DWORD -> "int"
; pcElem : DWORD* 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")
	procPropVariantToUInt16Vector = propsys.NewProc("PropVariantToUInt16Vector")
)

// propvar (PROPVARIANT*), prgn (WORD* out), crgn (DWORD), pcElem (DWORD* out)
r1, _, err := procPropVariantToUInt16Vector.Call(
	uintptr(propvar),
	uintptr(prgn),
	uintptr(crgn),
	uintptr(pcElem),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function PropVariantToUInt16Vector(
  propvar: Pointer;   // PROPVARIANT*
  prgn: Pointer;   // WORD* out
  crgn: DWORD;   // DWORD
  pcElem: Pointer   // DWORD* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToUInt16Vector';
result := DllCall("PROPSYS\PropVariantToUInt16Vector"
    , "Ptr", propvar   ; PROPVARIANT*
    , "Ptr", prgn   ; WORD* out
    , "UInt", crgn   ; DWORD
    , "Ptr", pcElem   ; DWORD* out
    , "Int")   ; return: HRESULT
●PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem) = DLL("PROPSYS.dll", "int PropVariantToUInt16Vector(void*, void*, dword, void*)")
# 呼び出し: PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
# propvar : PROPVARIANT* -> "void*"
# prgn : WORD* out -> "void*"
# crgn : DWORD -> "dword"
# pcElem : DWORD* 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 PropVariantToUInt16Vector(
    propvar: [*c]PROPVARIANT, // PROPVARIANT*
    prgn: [*c]u16, // WORD* out
    crgn: u32, // DWORD
    pcElem: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;
proc PropVariantToUInt16Vector(
    propvar: ptr PROPVARIANT,  # PROPVARIANT*
    prgn: ptr uint16,  # WORD* out
    crgn: uint32,  # DWORD
    pcElem: ptr uint32  # DWORD* out
): int32 {.importc: "PropVariantToUInt16Vector", stdcall, dynlib: "PROPSYS.dll".}
pragma(lib, "propsys");
extern(Windows)
int PropVariantToUInt16Vector(
    PROPVARIANT* propvar,   // PROPVARIANT*
    ushort* prgn,   // WORD* out
    uint crgn,   // DWORD
    uint* pcElem   // DWORD* out
);
ccall((:PropVariantToUInt16Vector, "PROPSYS.dll"), stdcall, Int32,
      (Ptr{PROPVARIANT}, Ptr{UInt16}, UInt32, Ptr{UInt32}),
      propvar, prgn, crgn, pcElem)
# propvar : PROPVARIANT* -> Ptr{PROPVARIANT}
# prgn : WORD* out -> Ptr{UInt16}
# crgn : DWORD -> UInt32
# pcElem : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t PropVariantToUInt16Vector(
    void* propvar,
    uint16_t* prgn,
    uint32_t crgn,
    uint32_t* pcElem);
]]
local propsys = ffi.load("propsys")
-- propsys.PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
-- propvar : PROPVARIANT*
-- prgn : WORD* out
-- crgn : DWORD
-- pcElem : DWORD* 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 PropVariantToUInt16Vector = lib.func('__stdcall', 'PropVariantToUInt16Vector', 'int32_t', ['void *', 'uint16_t *', 'uint32_t', 'uint32_t *']);
// PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
// propvar : PROPVARIANT* -> 'void *'
// prgn : WORD* out -> 'uint16_t *'
// crgn : DWORD -> 'uint32_t'
// pcElem : DWORD* out -> 'uint32_t *'
// 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", {
  PropVariantToUInt16Vector: { parameters: ["pointer", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem)
// propvar : PROPVARIANT* -> "pointer"
// prgn : WORD* out -> "pointer"
// crgn : DWORD -> "u32"
// pcElem : DWORD* 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 PropVariantToUInt16Vector(
    void* propvar,
    uint16_t* prgn,
    uint32_t crgn,
    uint32_t* pcElem);
C, "PROPSYS.dll");
// $ffi->PropVariantToUInt16Vector(propvar, prgn, crgn, pcElem);
// propvar : PROPVARIANT*
// prgn : WORD* out
// crgn : DWORD
// pcElem : DWORD* 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 PropVariantToUInt16Vector(
        Pointer propvar,   // PROPVARIANT*
        ShortByReference prgn,   // WORD* out
        int crgn,   // DWORD
        IntByReference pcElem   // DWORD* out
    );
}
@[Link("propsys")]
lib LibPROPSYS
  fun PropVariantToUInt16Vector = PropVariantToUInt16Vector(
    propvar : PROPVARIANT*,   # PROPVARIANT*
    prgn : UInt16*,   # WORD* out
    crgn : UInt32,   # DWORD
    pcElem : UInt32*   # DWORD* 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 PropVariantToUInt16VectorNative = Int32 Function(Pointer<Void>, Pointer<Uint16>, Uint32, Pointer<Uint32>);
typedef PropVariantToUInt16VectorDart = int Function(Pointer<Void>, Pointer<Uint16>, int, Pointer<Uint32>);
final PropVariantToUInt16Vector = DynamicLibrary.open('PROPSYS.dll')
    .lookupFunction<PropVariantToUInt16VectorNative, PropVariantToUInt16VectorDart>('PropVariantToUInt16Vector');
// propvar : PROPVARIANT* -> Pointer<Void>
// prgn : WORD* out -> Pointer<Uint16>
// crgn : DWORD -> Uint32
// pcElem : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function PropVariantToUInt16Vector(
  propvar: Pointer;   // PROPVARIANT*
  prgn: Pointer;   // WORD* out
  crgn: DWORD;   // DWORD
  pcElem: Pointer   // DWORD* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToUInt16Vector';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PropVariantToUInt16Vector"
  c_PropVariantToUInt16Vector :: Ptr () -> Ptr Word16 -> Word32 -> Ptr Word32 -> IO Int32
-- propvar : PROPVARIANT* -> Ptr ()
-- prgn : WORD* out -> Ptr Word16
-- crgn : DWORD -> Word32
-- pcElem : DWORD* out -> Ptr Word32
-- 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 propvarianttouint16vector =
  foreign "PropVariantToUInt16Vector"
    ((ptr void) @-> (ptr uint16_t) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* propvar : PROPVARIANT* -> (ptr void) *)
(* prgn : WORD* out -> (ptr uint16_t) *)
(* crgn : DWORD -> uint32_t *)
(* pcElem : DWORD* out -> (ptr uint32_t) *)
(* 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 ("PropVariantToUInt16Vector" prop-variant-to-uint16-vector :convention :stdcall) :int32
  (propvar :pointer)   ; PROPVARIANT*
  (prgn :pointer)   ; WORD* out
  (crgn :uint32)   ; DWORD
  (pc-elem :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $PropVariantToUInt16Vector = Win32::API::More->new('PROPSYS',
    'int PropVariantToUInt16Vector(LPVOID propvar, LPVOID prgn, DWORD crgn, LPVOID pcElem)');
# my $ret = $PropVariantToUInt16Vector->Call($propvar, $prgn, $crgn, $pcElem);
# propvar : PROPVARIANT* -> LPVOID
# prgn : WORD* out -> LPVOID
# crgn : DWORD -> DWORD
# pcElem : DWORD* 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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