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NdrContextHandleSize

関数

NDRでコンテキストハンドルの所要バッファサイズを算出する。

DLLRPCRT4.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// RPCRT4.dll
#include <windows.h>

void NdrContextHandleSize(
    MIDL_STUB_MESSAGE* pStubMsg,
    BYTE* pMemory,
    BYTE* pFormat
);

パラメーター

名前	型	方向
pStubMsg	MIDL_STUB_MESSAGE*	inout
pMemory	BYTE*	inout
pFormat	BYTE*	inout

戻り値の型: void

各言語での呼び出し定義

// RPCRT4.dll
#include <windows.h>

void NdrContextHandleSize(
    MIDL_STUB_MESSAGE* pStubMsg,
    BYTE* pMemory,
    BYTE* pFormat
);

[DllImport("RPCRT4.dll", ExactSpelling = true)]
static extern void NdrContextHandleSize(
    IntPtr pStubMsg,   // MIDL_STUB_MESSAGE* in/out
    IntPtr pMemory,   // BYTE* in/out
    IntPtr pFormat   // BYTE* in/out
);

<DllImport("RPCRT4.dll", ExactSpelling:=True)>
Public Shared Sub NdrContextHandleSize(
    pStubMsg As IntPtr,   ' MIDL_STUB_MESSAGE* in/out
    pMemory As IntPtr,   ' BYTE* in/out
    pFormat As IntPtr   ' BYTE* in/out
)
End Sub

' pStubMsg : MIDL_STUB_MESSAGE* in/out
' pMemory : BYTE* in/out
' pFormat : BYTE* in/out
Declare PtrSafe Sub NdrContextHandleSize Lib "rpcrt4" ( _
    ByVal pStubMsg As LongPtr, _
    ByVal pMemory As LongPtr, _
    ByVal pFormat As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

NdrContextHandleSize = ctypes.windll.rpcrt4.NdrContextHandleSize
NdrContextHandleSize.restype = None
NdrContextHandleSize.argtypes = [
    ctypes.c_void_p,  # pStubMsg : MIDL_STUB_MESSAGE* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pMemory : BYTE* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pFormat : BYTE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
NdrContextHandleSize = Fiddle::Function.new(
  lib['NdrContextHandleSize'],
  [
    Fiddle::TYPE_VOIDP,  # pStubMsg : MIDL_STUB_MESSAGE* in/out
    Fiddle::TYPE_VOIDP,  # pMemory : BYTE* in/out
    Fiddle::TYPE_VOIDP,  # pFormat : BYTE* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "rpcrt4")]
extern "system" {
    fn NdrContextHandleSize(
        pStubMsg: *mut MIDL_STUB_MESSAGE,  // MIDL_STUB_MESSAGE* in/out
        pMemory: *mut u8,  // BYTE* in/out
        pFormat: *mut u8  // BYTE* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll")]
public static extern void NdrContextHandleSize(IntPtr pStubMsg, IntPtr pMemory, IntPtr pFormat);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_NdrContextHandleSize' -Namespace Win32 -PassThru
# $api::NdrContextHandleSize(pStubMsg, pMemory, pFormat)

#uselib "RPCRT4.dll"
#func global NdrContextHandleSize "NdrContextHandleSize" sptr, sptr, sptr
; NdrContextHandleSize varptr(pStubMsg), varptr(pMemory), varptr(pFormat)
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "sptr"
; pMemory : BYTE* in/out -> "sptr"
; pFormat : BYTE* in/out -> "sptr"

出力引数:

#uselib "RPCRT4.dll"
#func global NdrContextHandleSize "NdrContextHandleSize" var, var, var
; NdrContextHandleSize pStubMsg, pMemory, pFormat
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "var"
; pMemory : BYTE* in/out -> "var"
; pFormat : BYTE* in/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 "RPCRT4.dll"
#func global NdrContextHandleSize "NdrContextHandleSize" sptr, sptr, sptr
; NdrContextHandleSize varptr(pStubMsg), varptr(pMemory), varptr(pFormat)
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "sptr"
; pMemory : BYTE* in/out -> "sptr"
; pFormat : BYTE* in/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:

; void NdrContextHandleSize(MIDL_STUB_MESSAGE* pStubMsg, BYTE* pMemory, BYTE* pFormat)
#uselib "RPCRT4.dll"
#func global NdrContextHandleSize "NdrContextHandleSize" var, var, var
; NdrContextHandleSize pStubMsg, pMemory, pFormat
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "var"
; pMemory : BYTE* in/out -> "var"
; pFormat : BYTE* in/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。; void NdrContextHandleSize(MIDL_STUB_MESSAGE* pStubMsg, BYTE* pMemory, BYTE* pFormat)
#uselib "RPCRT4.dll"
#func global NdrContextHandleSize "NdrContextHandleSize" intptr, intptr, intptr
; NdrContextHandleSize varptr(pStubMsg), varptr(pMemory), varptr(pFormat)
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "intptr"
; pMemory : BYTE* in/out -> "intptr"
; pFormat : BYTE* in/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 (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procNdrContextHandleSize = rpcrt4.NewProc("NdrContextHandleSize")
)

// pStubMsg (MIDL_STUB_MESSAGE* in/out), pMemory (BYTE* in/out), pFormat (BYTE* in/out)
r1, _, err := procNdrContextHandleSize.Call(
	uintptr(pStubMsg),
	uintptr(pMemory),
	uintptr(pFormat),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure NdrContextHandleSize(
  pStubMsg: Pointer;   // MIDL_STUB_MESSAGE* in/out
  pMemory: Pointer;   // BYTE* in/out
  pFormat: Pointer   // BYTE* in/out
); stdcall;
  external 'RPCRT4.dll' name 'NdrContextHandleSize';

result := DllCall("RPCRT4\NdrContextHandleSize"
    , "Ptr", pStubMsg   ; MIDL_STUB_MESSAGE* in/out
    , "Ptr", pMemory   ; BYTE* in/out
    , "Ptr", pFormat   ; BYTE* in/out
    , "Int")   ; return: void

●NdrContextHandleSize(pStubMsg, pMemory, pFormat) = DLL("RPCRT4.dll", "int NdrContextHandleSize(void*, void*, void*)")
# 呼び出し: NdrContextHandleSize(pStubMsg, pMemory, pFormat)
# pStubMsg : MIDL_STUB_MESSAGE* in/out -> "void*"
# pMemory : BYTE* in/out -> "void*"
# pFormat : BYTE* in/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)。