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SslGetMaximumKeySize

関数

Schannelがサポートする最大鍵サイズを取得する。

DLLSCHANNEL.dll呼出規約winapi

シグネチャ

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

DWORD SslGetMaximumKeySize(
    DWORD Reserved
);

パラメーター

名前	型	方向
Reserved	DWORD	in

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD SslGetMaximumKeySize(
    DWORD Reserved
);

[DllImport("SCHANNEL.dll", ExactSpelling = true)]
static extern uint SslGetMaximumKeySize(
    uint Reserved   // DWORD
);

<DllImport("SCHANNEL.dll", ExactSpelling:=True)>
Public Shared Function SslGetMaximumKeySize(
    Reserved As UInteger   ' DWORD
) As UInteger
End Function

' Reserved : DWORD
Declare PtrSafe Function SslGetMaximumKeySize Lib "schannel" ( _
    ByVal Reserved As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SslGetMaximumKeySize = ctypes.windll.schannel.SslGetMaximumKeySize
SslGetMaximumKeySize.restype = wintypes.DWORD
SslGetMaximumKeySize.argtypes = [
    wintypes.DWORD,  # Reserved : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SCHANNEL.dll')
SslGetMaximumKeySize = Fiddle::Function.new(
  lib['SslGetMaximumKeySize'],
  [
    -Fiddle::TYPE_INT,  # Reserved : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "schannel")]
extern "system" {
    fn SslGetMaximumKeySize(
        Reserved: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SCHANNEL.dll")]
public static extern uint SslGetMaximumKeySize(uint Reserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SCHANNEL_SslGetMaximumKeySize' -Namespace Win32 -PassThru
# $api::SslGetMaximumKeySize(Reserved)

#uselib "SCHANNEL.dll"
#func global SslGetMaximumKeySize "SslGetMaximumKeySize" sptr
; SslGetMaximumKeySize Reserved   ; 戻り値は stat
; Reserved : DWORD -> "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。

#uselib "SCHANNEL.dll"
#cfunc global SslGetMaximumKeySize "SslGetMaximumKeySize" int
; res = SslGetMaximumKeySize(Reserved)
; Reserved : DWORD -> "int"

; DWORD SslGetMaximumKeySize(DWORD Reserved)
#uselib "SCHANNEL.dll"
#cfunc global SslGetMaximumKeySize "SslGetMaximumKeySize" int
; res = SslGetMaximumKeySize(Reserved)
; Reserved : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	schannel = windows.NewLazySystemDLL("SCHANNEL.dll")
	procSslGetMaximumKeySize = schannel.NewProc("SslGetMaximumKeySize")
)

// Reserved (DWORD)
r1, _, err := procSslGetMaximumKeySize.Call(
	uintptr(Reserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SslGetMaximumKeySize(
  Reserved: DWORD   // DWORD
): DWORD; stdcall;
  external 'SCHANNEL.dll' name 'SslGetMaximumKeySize';

result := DllCall("SCHANNEL\SslGetMaximumKeySize"
    , "UInt", Reserved   ; DWORD
    , "UInt")   ; return: DWORD

●SslGetMaximumKeySize(Reserved) = DLL("SCHANNEL.dll", "dword SslGetMaximumKeySize(dword)")
# 呼び出し: SslGetMaximumKeySize(Reserved)
# Reserved : 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)。