VarUI1FromDec

関数

DECIMAL値をBYTE（符号なし1バイト）に変換する。

DLLOLEAUT32.dll呼出規約winapi

シグネチャ

// OLEAUT32.dll
#include <windows.h>

HRESULT VarUI1FromDec(
    const DECIMAL* pdecIn,
    BYTE* pbOut
);

パラメーター

名前	型	方向
pdecIn	DECIMAL*	in
pbOut	BYTE*	out

戻り値の型: HRESULT

各言語での呼び出し定義

// OLEAUT32.dll
#include <windows.h>

HRESULT VarUI1FromDec(
    const DECIMAL* pdecIn,
    BYTE* pbOut
);

[DllImport("OLEAUT32.dll", ExactSpelling = true)]
static extern int VarUI1FromDec(
    IntPtr pdecIn,   // DECIMAL*
    IntPtr pbOut   // BYTE* out
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarUI1FromDec(
    pdecIn As IntPtr,   ' DECIMAL*
    pbOut As IntPtr   ' BYTE* out
) As Integer
End Function

' pdecIn : DECIMAL*
' pbOut : BYTE* out
Declare PtrSafe Function VarUI1FromDec Lib "oleaut32" ( _
    ByVal pdecIn As LongPtr, _
    ByVal pbOut 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

VarUI1FromDec = ctypes.windll.oleaut32.VarUI1FromDec
VarUI1FromDec.restype = ctypes.c_int
VarUI1FromDec.argtypes = [
    ctypes.c_void_p,  # pdecIn : DECIMAL*
    ctypes.POINTER(ctypes.c_ubyte),  # pbOut : BYTE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarUI1FromDec = Fiddle::Function.new(
  lib['VarUI1FromDec'],
  [
    Fiddle::TYPE_VOIDP,  # pdecIn : DECIMAL*
    Fiddle::TYPE_VOIDP,  # pbOut : BYTE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarUI1FromDec(
        pdecIn: *const DECIMAL,  // DECIMAL*
        pbOut: *mut u8  // BYTE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarUI1FromDec(IntPtr pdecIn, IntPtr pbOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarUI1FromDec' -Namespace Win32 -PassThru
# $api::VarUI1FromDec(pdecIn, pbOut)

#uselib "OLEAUT32.dll"
#func global VarUI1FromDec "VarUI1FromDec" sptr, sptr
; VarUI1FromDec varptr(pdecIn), varptr(pbOut)   ; 戻り値は stat
; pdecIn : DECIMAL* -> "sptr"
; pbOut : BYTE* 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 "OLEAUT32.dll"
#cfunc global VarUI1FromDec "VarUI1FromDec" var, var
; res = VarUI1FromDec(pdecIn, pbOut)
; pdecIn : DECIMAL* -> "var"
; pbOut : BYTE* 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 "OLEAUT32.dll"
#cfunc global VarUI1FromDec "VarUI1FromDec" sptr, sptr
; res = VarUI1FromDec(varptr(pdecIn), varptr(pbOut))
; pdecIn : DECIMAL* -> "sptr"
; pbOut : BYTE* 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 VarUI1FromDec(DECIMAL* pdecIn, BYTE* pbOut)
#uselib "OLEAUT32.dll"
#cfunc global VarUI1FromDec "VarUI1FromDec" var, var
; res = VarUI1FromDec(pdecIn, pbOut)
; pdecIn : DECIMAL* -> "var"
; pbOut : BYTE* 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 VarUI1FromDec(DECIMAL* pdecIn, BYTE* pbOut)
#uselib "OLEAUT32.dll"
#cfunc global VarUI1FromDec "VarUI1FromDec" intptr, intptr
; res = VarUI1FromDec(varptr(pdecIn), varptr(pbOut))
; pdecIn : DECIMAL* -> "intptr"
; pbOut : BYTE* 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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVarUI1FromDec = oleaut32.NewProc("VarUI1FromDec")
)

// pdecIn (DECIMAL*), pbOut (BYTE* out)
r1, _, err := procVarUI1FromDec.Call(
	uintptr(pdecIn),
	uintptr(pbOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarUI1FromDec(
  pdecIn: Pointer;   // DECIMAL*
  pbOut: Pointer   // BYTE* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarUI1FromDec';

result := DllCall("OLEAUT32\VarUI1FromDec"
    , "Ptr", pdecIn   ; DECIMAL*
    , "Ptr", pbOut   ; BYTE* out
    , "Int")   ; return: HRESULT

●VarUI1FromDec(pdecIn, pbOut) = DLL("OLEAUT32.dll", "int VarUI1FromDec(void*, void*)")
# 呼び出し: VarUI1FromDec(pdecIn, pbOut)
# pdecIn : DECIMAL* -> "void*"
# pbOut : BYTE* 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)。