VariantCompare

関数

二つのVARIANTを比較し大小関係を返す。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

INT VariantCompare(
    const VARIANT* var1,
    const VARIANT* var2
);

パラメーター

名前	型	方向
var1	VARIANT*	in
var2	VARIANT*	in

戻り値の型: INT

各言語での呼び出し定義

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

INT VariantCompare(
    const VARIANT* var1,
    const VARIANT* var2
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int VariantCompare(
    IntPtr var1,   // VARIANT*
    IntPtr var2   // VARIANT*
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function VariantCompare(
    var1 As IntPtr,   ' VARIANT*
    var2 As IntPtr   ' VARIANT*
) As Integer
End Function

' var1 : VARIANT*
' var2 : VARIANT*
Declare PtrSafe Function VariantCompare Lib "propsys" ( _
    ByVal var1 As LongPtr, _
    ByVal var2 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

VariantCompare = ctypes.windll.propsys.VariantCompare
VariantCompare.restype = ctypes.c_int
VariantCompare.argtypes = [
    ctypes.c_void_p,  # var1 : VARIANT*
    ctypes.c_void_p,  # var2 : VARIANT*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
VariantCompare = Fiddle::Function.new(
  lib['VariantCompare'],
  [
    Fiddle::TYPE_VOIDP,  # var1 : VARIANT*
    Fiddle::TYPE_VOIDP,  # var2 : VARIANT*
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn VariantCompare(
        var1: *const VARIANT,  // VARIANT*
        var2: *const VARIANT  // VARIANT*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int VariantCompare(IntPtr var1, IntPtr var2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_VariantCompare' -Namespace Win32 -PassThru
# $api::VariantCompare(var1, var2)

#uselib "PROPSYS.dll"
#func global VariantCompare "VariantCompare" sptr, sptr
; VariantCompare varptr(var1), varptr(var2)   ; 戻り値は stat
; var1 : VARIANT* -> "sptr"
; var2 : VARIANT* -> "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 VariantCompare "VariantCompare" var, var
; res = VariantCompare(var1, var2)
; var1 : VARIANT* -> "var"
; var2 : VARIANT* -> "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 VariantCompare "VariantCompare" sptr, sptr
; res = VariantCompare(varptr(var1), varptr(var2))
; var1 : VARIANT* -> "sptr"
; var2 : VARIANT* -> "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:

; INT VariantCompare(VARIANT* var1, VARIANT* var2)
#uselib "PROPSYS.dll"
#cfunc global VariantCompare "VariantCompare" var, var
; res = VariantCompare(var1, var2)
; var1 : VARIANT* -> "var"
; var2 : VARIANT* -> "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。; INT VariantCompare(VARIANT* var1, VARIANT* var2)
#uselib "PROPSYS.dll"
#cfunc global VariantCompare "VariantCompare" intptr, intptr
; res = VariantCompare(varptr(var1), varptr(var2))
; var1 : VARIANT* -> "intptr"
; var2 : VARIANT* -> "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")
	procVariantCompare = propsys.NewProc("VariantCompare")
)

// var1 (VARIANT*), var2 (VARIANT*)
r1, _, err := procVariantCompare.Call(
	uintptr(var1),
	uintptr(var2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function VariantCompare(
  var1: Pointer;   // VARIANT*
  var2: Pointer   // VARIANT*
): Integer; stdcall;
  external 'PROPSYS.dll' name 'VariantCompare';

result := DllCall("PROPSYS\VariantCompare"
    , "Ptr", var1   ; VARIANT*
    , "Ptr", var2   ; VARIANT*
    , "Int")   ; return: INT

●VariantCompare(var1, var2) = DLL("PROPSYS.dll", "int VariantCompare(void*, void*)")
# 呼び出し: VariantCompare(var1, var2)
# var1 : VARIANT* -> "void*"
# var2 : VARIANT* -> "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)。