CredWriteW

関数

資格情報を資格情報マネージャーに保存する。

DLLADVAPI32.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

BOOL CredWriteW(
    CREDENTIALW* Credential,
    DWORD Flags
);

パラメーター

名前	型	方向
Credential	CREDENTIALW*	in
Flags	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

BOOL CredWriteW(
    CREDENTIALW* Credential,
    DWORD Flags
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern bool CredWriteW(
    IntPtr Credential,   // CREDENTIALW*
    uint Flags   // DWORD
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CredWriteW(
    Credential As IntPtr,   ' CREDENTIALW*
    Flags As UInteger   ' DWORD
) As Boolean
End Function

' Credential : CREDENTIALW*
' Flags : DWORD
Declare PtrSafe Function CredWriteW Lib "advapi32" ( _
    ByVal Credential As LongPtr, _
    ByVal Flags As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CredWriteW = ctypes.windll.advapi32.CredWriteW
CredWriteW.restype = wintypes.BOOL
CredWriteW.argtypes = [
    ctypes.c_void_p,  # Credential : CREDENTIALW*
    wintypes.DWORD,  # Flags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
CredWriteW = Fiddle::Function.new(
  lib['CredWriteW'],
  [
    Fiddle::TYPE_VOIDP,  # Credential : CREDENTIALW*
    -Fiddle::TYPE_INT,  # Flags : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advapi32")]
extern "system" {
    fn CredWriteW(
        Credential: *mut CREDENTIALW,  // CREDENTIALW*
        Flags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CredWriteW(IntPtr Credential, uint Flags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_CredWriteW' -Namespace Win32 -PassThru
# $api::CredWriteW(Credential, Flags)

#uselib "ADVAPI32.dll"
#func global CredWriteW "CredWriteW" wptr, wptr
; CredWriteW varptr(Credential), Flags   ; 戻り値は stat
; Credential : CREDENTIALW* -> "wptr"
; Flags : DWORD -> "wptr"
; ※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 "ADVAPI32.dll"
#cfunc global CredWriteW "CredWriteW" var, int
; res = CredWriteW(Credential, Flags)
; Credential : CREDENTIALW* -> "var"
; Flags : DWORD -> "int"
; ※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 "ADVAPI32.dll"
#cfunc global CredWriteW "CredWriteW" sptr, int
; res = CredWriteW(varptr(Credential), Flags)
; Credential : CREDENTIALW* -> "sptr"
; Flags : DWORD -> "int"
; ※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:

; BOOL CredWriteW(CREDENTIALW* Credential, DWORD Flags)
#uselib "ADVAPI32.dll"
#cfunc global CredWriteW "CredWriteW" var, int
; res = CredWriteW(Credential, Flags)
; Credential : CREDENTIALW* -> "var"
; Flags : DWORD -> "int"
; ※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。; BOOL CredWriteW(CREDENTIALW* Credential, DWORD Flags)
#uselib "ADVAPI32.dll"
#cfunc global CredWriteW "CredWriteW" intptr, int
; res = CredWriteW(varptr(Credential), Flags)
; Credential : CREDENTIALW* -> "intptr"
; Flags : DWORD -> "int"
; ※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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procCredWriteW = advapi32.NewProc("CredWriteW")
)

// Credential (CREDENTIALW*), Flags (DWORD)
r1, _, err := procCredWriteW.Call(
	uintptr(Credential),
	uintptr(Flags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CredWriteW(
  Credential: Pointer;   // CREDENTIALW*
  Flags: DWORD   // DWORD
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'CredWriteW';

result := DllCall("ADVAPI32\CredWriteW"
    , "Ptr", Credential   ; CREDENTIALW*
    , "UInt", Flags   ; DWORD
    , "Int")   ; return: BOOL

●CredWriteW(Credential, Flags) = DLL("ADVAPI32.dll", "bool CredWriteW(void*, dword)")
# 呼び出し: CredWriteW(Credential, Flags)
# Credential : CREDENTIALW* -> "void*"
# Flags : DWORD -> "dword"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。