VarBstrFromUI8

関数

符号なし64ビット整数をロケールに従ってBSTR文字列に変換する。

DLLOLEAUT32.dll呼出規約winapi

シグネチャ

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

HRESULT VarBstrFromUI8(
    ULONGLONG ui64In,
    DWORD lcid,
    DWORD dwFlags,
    LPWSTR* pbstrOut
);

パラメーター

名前	型	方向	説明
ui64In	ULONGLONG	in	変換元の符号なし64ビット整数(UI8)値。
lcid	DWORD	in	文字列生成に用いるロケールID。
dwFlags	DWORD	in	変換動作を制御するLOCALE_xxx/VAR_xxxフラグ。
pbstrOut	LPWSTR*	out	生成されたBSTRを受け取る出力ポインタ。要SysFreeString解放。NULL不可。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT VarBstrFromUI8(
    ULONGLONG ui64In,
    DWORD lcid,
    DWORD dwFlags,
    LPWSTR* pbstrOut
);

[DllImport("OLEAUT32.dll", ExactSpelling = true)]
static extern int VarBstrFromUI8(
    ulong ui64In,   // ULONGLONG
    uint lcid,   // DWORD
    uint dwFlags,   // DWORD
    IntPtr pbstrOut   // LPWSTR* out
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarBstrFromUI8(
    ui64In As ULong,   ' ULONGLONG
    lcid As UInteger,   ' DWORD
    dwFlags As UInteger,   ' DWORD
    pbstrOut As IntPtr   ' LPWSTR* out
) As Integer
End Function

' ui64In : ULONGLONG
' lcid : DWORD
' dwFlags : DWORD
' pbstrOut : LPWSTR* out
Declare PtrSafe Function VarBstrFromUI8 Lib "oleaut32" ( _
    ByVal ui64In As LongLong, _
    ByVal lcid As Long, _
    ByVal dwFlags As Long, _
    ByVal pbstrOut 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

VarBstrFromUI8 = ctypes.windll.oleaut32.VarBstrFromUI8
VarBstrFromUI8.restype = ctypes.c_int
VarBstrFromUI8.argtypes = [
    ctypes.c_ulonglong,  # ui64In : ULONGLONG
    wintypes.DWORD,  # lcid : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # pbstrOut : LPWSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarBstrFromUI8 = Fiddle::Function.new(
  lib['VarBstrFromUI8'],
  [
    -Fiddle::TYPE_LONG_LONG,  # ui64In : ULONGLONG
    -Fiddle::TYPE_INT,  # lcid : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pbstrOut : LPWSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarBstrFromUI8(
        ui64In: u64,  // ULONGLONG
        lcid: u32,  // DWORD
        dwFlags: u32,  // DWORD
        pbstrOut: *mut *mut u16  // LPWSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarBstrFromUI8(ulong ui64In, uint lcid, uint dwFlags, IntPtr pbstrOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarBstrFromUI8' -Namespace Win32 -PassThru
# $api::VarBstrFromUI8(ui64In, lcid, dwFlags, pbstrOut)

#uselib "OLEAUT32.dll"
#func global VarBstrFromUI8 "VarBstrFromUI8" sptr, sptr, sptr, sptr
; VarBstrFromUI8 ui64In, lcid, dwFlags, varptr(pbstrOut)   ; 戻り値は stat
; ui64In : ULONGLONG -> "sptr"
; lcid : DWORD -> "sptr"
; dwFlags : DWORD -> "sptr"
; pbstrOut : LPWSTR* out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 VarBstrFromUI8 "VarBstrFromUI8" int64, int, int, var
; res = VarBstrFromUI8(ui64In, lcid, dwFlags, pbstrOut)
; ui64In : ULONGLONG -> "int64"
; lcid : DWORD -> "int"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* 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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。#uselib "OLEAUT32.dll"
#cfunc global VarBstrFromUI8 "VarBstrFromUI8" int64, int, int, sptr
; res = VarBstrFromUI8(ui64In, lcid, dwFlags, varptr(pbstrOut))
; ui64In : ULONGLONG -> "int64"
; lcid : DWORD -> "int"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* 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))。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

出力引数:

; HRESULT VarBstrFromUI8(ULONGLONG ui64In, DWORD lcid, DWORD dwFlags, LPWSTR* pbstrOut)
#uselib "OLEAUT32.dll"
#cfunc global VarBstrFromUI8 "VarBstrFromUI8" int64, int, int, var
; res = VarBstrFromUI8(ui64In, lcid, dwFlags, pbstrOut)
; ui64In : ULONGLONG -> "int64"
; lcid : DWORD -> "int"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* 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 VarBstrFromUI8(ULONGLONG ui64In, DWORD lcid, DWORD dwFlags, LPWSTR* pbstrOut)
#uselib "OLEAUT32.dll"
#cfunc global VarBstrFromUI8 "VarBstrFromUI8" int64, int, int, intptr
; res = VarBstrFromUI8(ui64In, lcid, dwFlags, varptr(pbstrOut))
; ui64In : ULONGLONG -> "int64"
; lcid : DWORD -> "int"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* 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")
	procVarBstrFromUI8 = oleaut32.NewProc("VarBstrFromUI8")
)

// ui64In (ULONGLONG), lcid (DWORD), dwFlags (DWORD), pbstrOut (LPWSTR* out)
r1, _, err := procVarBstrFromUI8.Call(
	uintptr(ui64In),
	uintptr(lcid),
	uintptr(dwFlags),
	uintptr(pbstrOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarBstrFromUI8(
  ui64In: UInt64;   // ULONGLONG
  lcid: DWORD;   // DWORD
  dwFlags: DWORD;   // DWORD
  pbstrOut: PPWideChar   // LPWSTR* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarBstrFromUI8';

result := DllCall("OLEAUT32\VarBstrFromUI8"
    , "Int64", ui64In   ; ULONGLONG
    , "UInt", lcid   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pbstrOut   ; LPWSTR* out
    , "Int")   ; return: HRESULT

●VarBstrFromUI8(ui64In, lcid, dwFlags, pbstrOut) = DLL("OLEAUT32.dll", "int VarBstrFromUI8(qword, dword, dword, void*)")
# 呼び出し: VarBstrFromUI8(ui64In, lcid, dwFlags, pbstrOut)
# ui64In : ULONGLONG -> "qword"
# lcid : DWORD -> "dword"
# dwFlags : DWORD -> "dword"
# pbstrOut : LPWSTR* 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)。