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PropVariantToInt32

関数

PROPVARIANTを32ビット整数へ変換して取得する。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

HRESULT PropVariantToInt32(
    const PROPVARIANT* propvarIn,
    INT* plRet
);

パラメーター

名前	型	方向
propvarIn	PROPVARIANT*	in
plRet	INT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT PropVariantToInt32(
    const PROPVARIANT* propvarIn,
    INT* plRet
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int PropVariantToInt32(
    IntPtr propvarIn,   // PROPVARIANT*
    out int plRet   // INT* out
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToInt32(
    propvarIn As IntPtr,   ' PROPVARIANT*
    <Out> ByRef plRet As Integer   ' INT* out
) As Integer
End Function

' propvarIn : PROPVARIANT*
' plRet : INT* out
Declare PtrSafe Function PropVariantToInt32 Lib "propsys" ( _
    ByVal propvarIn As LongPtr, _
    ByRef plRet 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

PropVariantToInt32 = ctypes.windll.propsys.PropVariantToInt32
PropVariantToInt32.restype = ctypes.c_int
PropVariantToInt32.argtypes = [
    ctypes.c_void_p,  # propvarIn : PROPVARIANT*
    ctypes.POINTER(ctypes.c_int),  # plRet : INT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToInt32 = Fiddle::Function.new(
  lib['PropVariantToInt32'],
  [
    Fiddle::TYPE_VOIDP,  # propvarIn : PROPVARIANT*
    Fiddle::TYPE_VOIDP,  # plRet : INT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn PropVariantToInt32(
        propvarIn: *const PROPVARIANT,  // PROPVARIANT*
        plRet: *mut i32  // INT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PropVariantToInt32(IntPtr propvarIn, out int plRet);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToInt32' -Namespace Win32 -PassThru
# $api::PropVariantToInt32(propvarIn, plRet)

#uselib "PROPSYS.dll"
#func global PropVariantToInt32 "PropVariantToInt32" sptr, sptr
; PropVariantToInt32 varptr(propvarIn), varptr(plRet)   ; 戻り値は stat
; propvarIn : PROPVARIANT* -> "sptr"
; plRet : INT* 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 PropVariantToInt32 "PropVariantToInt32" var, var
; res = PropVariantToInt32(propvarIn, plRet)
; propvarIn : PROPVARIANT* -> "var"
; plRet : INT* 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 "PROPSYS.dll"
#cfunc global PropVariantToInt32 "PropVariantToInt32" sptr, sptr
; res = PropVariantToInt32(varptr(propvarIn), varptr(plRet))
; propvarIn : PROPVARIANT* -> "sptr"
; plRet : INT* 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:

; HRESULT PropVariantToInt32(PROPVARIANT* propvarIn, INT* plRet)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToInt32 "PropVariantToInt32" var, var
; res = PropVariantToInt32(propvarIn, plRet)
; propvarIn : PROPVARIANT* -> "var"
; plRet : INT* 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。; HRESULT PropVariantToInt32(PROPVARIANT* propvarIn, INT* plRet)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToInt32 "PropVariantToInt32" intptr, intptr
; res = PropVariantToInt32(varptr(propvarIn), varptr(plRet))
; propvarIn : PROPVARIANT* -> "intptr"
; plRet : INT* 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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPropVariantToInt32 = propsys.NewProc("PropVariantToInt32")
)

// propvarIn (PROPVARIANT*), plRet (INT* out)
r1, _, err := procPropVariantToInt32.Call(
	uintptr(propvarIn),
	uintptr(plRet),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PropVariantToInt32(
  propvarIn: Pointer;   // PROPVARIANT*
  plRet: Pointer   // INT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToInt32';

result := DllCall("PROPSYS\PropVariantToInt32"
    , "Ptr", propvarIn   ; PROPVARIANT*
    , "Ptr", plRet   ; INT* out
    , "Int")   ; return: HRESULT

●PropVariantToInt32(propvarIn, plRet) = DLL("PROPSYS.dll", "int PropVariantToInt32(void*, void*)")
# 呼び出し: PropVariantToInt32(propvarIn, plRet)
# propvarIn : PROPVARIANT* -> "void*"
# plRet : INT* 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)。