VariantToInt16

関数

VARIANTを16ビット符号付き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 VariantToInt16(
    const VARIANT* varIn,
    SHORT* piRet
);

パラメーター

名前	型	方向
varIn	VARIANT*	in
piRet	SHORT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT VariantToInt16(
    const VARIANT* varIn,
    SHORT* piRet
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int VariantToInt16(
    IntPtr varIn,   // VARIANT*
    out short piRet   // SHORT* out
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function VariantToInt16(
    varIn As IntPtr,   ' VARIANT*
    <Out> ByRef piRet As Short   ' SHORT* out
) As Integer
End Function

' varIn : VARIANT*
' piRet : SHORT* out
Declare PtrSafe Function VariantToInt16 Lib "propsys" ( _
    ByVal varIn As LongPtr, _
    ByRef piRet As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VariantToInt16 = ctypes.windll.propsys.VariantToInt16
VariantToInt16.restype = ctypes.c_int
VariantToInt16.argtypes = [
    ctypes.c_void_p,  # varIn : VARIANT*
    ctypes.POINTER(ctypes.c_short),  # piRet : SHORT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
VariantToInt16 = Fiddle::Function.new(
  lib['VariantToInt16'],
  [
    Fiddle::TYPE_VOIDP,  # varIn : VARIANT*
    Fiddle::TYPE_VOIDP,  # piRet : SHORT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn VariantToInt16(
        varIn: *const VARIANT,  // VARIANT*
        piRet: *mut i16  // SHORT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int VariantToInt16(IntPtr varIn, out short piRet);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_VariantToInt16' -Namespace Win32 -PassThru
# $api::VariantToInt16(varIn, piRet)

#uselib "PROPSYS.dll"
#func global VariantToInt16 "VariantToInt16" sptr, sptr
; VariantToInt16 varptr(varIn), varptr(piRet)   ; 戻り値は stat
; varIn : VARIANT* -> "sptr"
; piRet : SHORT* 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 VariantToInt16 "VariantToInt16" var, var
; res = VariantToInt16(varIn, piRet)
; varIn : VARIANT* -> "var"
; piRet : SHORT* 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 VariantToInt16 "VariantToInt16" sptr, sptr
; res = VariantToInt16(varptr(varIn), varptr(piRet))
; varIn : VARIANT* -> "sptr"
; piRet : SHORT* 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 VariantToInt16(VARIANT* varIn, SHORT* piRet)
#uselib "PROPSYS.dll"
#cfunc global VariantToInt16 "VariantToInt16" var, var
; res = VariantToInt16(varIn, piRet)
; varIn : VARIANT* -> "var"
; piRet : SHORT* 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 VariantToInt16(VARIANT* varIn, SHORT* piRet)
#uselib "PROPSYS.dll"
#cfunc global VariantToInt16 "VariantToInt16" intptr, intptr
; res = VariantToInt16(varptr(varIn), varptr(piRet))
; varIn : VARIANT* -> "intptr"
; piRet : SHORT* 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")
	procVariantToInt16 = propsys.NewProc("VariantToInt16")
)

// varIn (VARIANT*), piRet (SHORT* out)
r1, _, err := procVariantToInt16.Call(
	uintptr(varIn),
	uintptr(piRet),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VariantToInt16(
  varIn: Pointer;   // VARIANT*
  piRet: Pointer   // SHORT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'VariantToInt16';

result := DllCall("PROPSYS\VariantToInt16"
    , "Ptr", varIn   ; VARIANT*
    , "Ptr", piRet   ; SHORT* out
    , "Int")   ; return: HRESULT

●VariantToInt16(varIn, piRet) = DLL("PROPSYS.dll", "int VariantToInt16(void*, void*)")
# 呼び出し: VariantToInt16(varIn, piRet)
# varIn : VARIANT* -> "void*"
# piRet : SHORT* 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)。