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InitVariantFromFileTimeArray

関数

FILETIME配列からVT_VECTOR形式のVARIANTを初期化する。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

HRESULT InitVariantFromFileTimeArray(
    const FILETIME* prgft,   // optional
    DWORD cElems,
    VARIANT* pvar
);

パラメーター

名前	型	方向
prgft	FILETIME*	inoptional
cElems	DWORD	in
pvar	VARIANT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT InitVariantFromFileTimeArray(
    const FILETIME* prgft,   // optional
    DWORD cElems,
    VARIANT* pvar
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int InitVariantFromFileTimeArray(
    IntPtr prgft,   // FILETIME* optional
    uint cElems,   // DWORD
    IntPtr pvar   // VARIANT* out
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function InitVariantFromFileTimeArray(
    prgft As IntPtr,   ' FILETIME* optional
    cElems As UInteger,   ' DWORD
    pvar As IntPtr   ' VARIANT* out
) As Integer
End Function

' prgft : FILETIME* optional
' cElems : DWORD
' pvar : VARIANT* out
Declare PtrSafe Function InitVariantFromFileTimeArray Lib "propsys" ( _
    ByVal prgft As LongPtr, _
    ByVal cElems As Long, _
    ByVal pvar 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

InitVariantFromFileTimeArray = ctypes.windll.propsys.InitVariantFromFileTimeArray
InitVariantFromFileTimeArray.restype = ctypes.c_int
InitVariantFromFileTimeArray.argtypes = [
    ctypes.c_void_p,  # prgft : FILETIME* optional
    wintypes.DWORD,  # cElems : DWORD
    ctypes.c_void_p,  # pvar : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
InitVariantFromFileTimeArray = Fiddle::Function.new(
  lib['InitVariantFromFileTimeArray'],
  [
    Fiddle::TYPE_VOIDP,  # prgft : FILETIME* optional
    -Fiddle::TYPE_INT,  # cElems : DWORD
    Fiddle::TYPE_VOIDP,  # pvar : VARIANT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn InitVariantFromFileTimeArray(
        prgft: *const FILETIME,  // FILETIME* optional
        cElems: u32,  // DWORD
        pvar: *mut VARIANT  // VARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int InitVariantFromFileTimeArray(IntPtr prgft, uint cElems, IntPtr pvar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_InitVariantFromFileTimeArray' -Namespace Win32 -PassThru
# $api::InitVariantFromFileTimeArray(prgft, cElems, pvar)

#uselib "PROPSYS.dll"
#func global InitVariantFromFileTimeArray "InitVariantFromFileTimeArray" sptr, sptr, sptr
; InitVariantFromFileTimeArray varptr(prgft), cElems, varptr(pvar)   ; 戻り値は stat
; prgft : FILETIME* optional -> "sptr"
; cElems : DWORD -> "sptr"
; pvar : VARIANT* 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 InitVariantFromFileTimeArray "InitVariantFromFileTimeArray" var, int, var
; res = InitVariantFromFileTimeArray(prgft, cElems, pvar)
; prgft : FILETIME* optional -> "var"
; cElems : DWORD -> "int"
; pvar : VARIANT* 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 InitVariantFromFileTimeArray "InitVariantFromFileTimeArray" sptr, int, sptr
; res = InitVariantFromFileTimeArray(varptr(prgft), cElems, varptr(pvar))
; prgft : FILETIME* optional -> "sptr"
; cElems : DWORD -> "int"
; pvar : VARIANT* 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 InitVariantFromFileTimeArray(FILETIME* prgft, DWORD cElems, VARIANT* pvar)
#uselib "PROPSYS.dll"
#cfunc global InitVariantFromFileTimeArray "InitVariantFromFileTimeArray" var, int, var
; res = InitVariantFromFileTimeArray(prgft, cElems, pvar)
; prgft : FILETIME* optional -> "var"
; cElems : DWORD -> "int"
; pvar : VARIANT* 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 InitVariantFromFileTimeArray(FILETIME* prgft, DWORD cElems, VARIANT* pvar)
#uselib "PROPSYS.dll"
#cfunc global InitVariantFromFileTimeArray "InitVariantFromFileTimeArray" intptr, int, intptr
; res = InitVariantFromFileTimeArray(varptr(prgft), cElems, varptr(pvar))
; prgft : FILETIME* optional -> "intptr"
; cElems : DWORD -> "int"
; pvar : VARIANT* 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")
	procInitVariantFromFileTimeArray = propsys.NewProc("InitVariantFromFileTimeArray")
)

// prgft (FILETIME* optional), cElems (DWORD), pvar (VARIANT* out)
r1, _, err := procInitVariantFromFileTimeArray.Call(
	uintptr(prgft),
	uintptr(cElems),
	uintptr(pvar),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function InitVariantFromFileTimeArray(
  prgft: Pointer;   // FILETIME* optional
  cElems: DWORD;   // DWORD
  pvar: Pointer   // VARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitVariantFromFileTimeArray';

result := DllCall("PROPSYS\InitVariantFromFileTimeArray"
    , "Ptr", prgft   ; FILETIME* optional
    , "UInt", cElems   ; DWORD
    , "Ptr", pvar   ; VARIANT* out
    , "Int")   ; return: HRESULT

●InitVariantFromFileTimeArray(prgft, cElems, pvar) = DLL("PROPSYS.dll", "int InitVariantFromFileTimeArray(void*, dword, void*)")
# 呼び出し: InitVariantFromFileTimeArray(prgft, cElems, pvar)
# prgft : FILETIME* optional -> "void*"
# cElems : DWORD -> "dword"
# pvar : VARIANT* 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)。