ホーム › System.Diagnostics.Debug › CopyContext

CopyContext

関数

指定フラグに従ってコンテキスト構造体をコピーする。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows 7 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL CopyContext(
    CONTEXT* Destination,
    CONTEXT_FLAGS ContextFlags,
    CONTEXT* Source
);

パラメーター

名前	型	方向
Destination	CONTEXT*	inout
ContextFlags	CONTEXT_FLAGS	in
Source	CONTEXT*	in

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL CopyContext(
    CONTEXT* Destination,
    CONTEXT_FLAGS ContextFlags,
    CONTEXT* Source
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CopyContext(
    IntPtr Destination,   // CONTEXT* in/out
    uint ContextFlags,   // CONTEXT_FLAGS
    IntPtr Source   // CONTEXT*
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CopyContext(
    Destination As IntPtr,   ' CONTEXT* in/out
    ContextFlags As UInteger,   ' CONTEXT_FLAGS
    Source As IntPtr   ' CONTEXT*
) As Boolean
End Function

' Destination : CONTEXT* in/out
' ContextFlags : CONTEXT_FLAGS
' Source : CONTEXT*
Declare PtrSafe Function CopyContext Lib "kernel32" ( _
    ByVal Destination As LongPtr, _
    ByVal ContextFlags As Long, _
    ByVal Source 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

CopyContext = ctypes.windll.kernel32.CopyContext
CopyContext.restype = wintypes.BOOL
CopyContext.argtypes = [
    ctypes.c_void_p,  # Destination : CONTEXT* in/out
    wintypes.DWORD,  # ContextFlags : CONTEXT_FLAGS
    ctypes.c_void_p,  # Source : CONTEXT*
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CopyContext = Fiddle::Function.new(
  lib['CopyContext'],
  [
    Fiddle::TYPE_VOIDP,  # Destination : CONTEXT* in/out
    -Fiddle::TYPE_INT,  # ContextFlags : CONTEXT_FLAGS
    Fiddle::TYPE_VOIDP,  # Source : CONTEXT*
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn CopyContext(
        Destination: *mut CONTEXT,  // CONTEXT* in/out
        ContextFlags: u32,  // CONTEXT_FLAGS
        Source: *mut CONTEXT  // CONTEXT*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool CopyContext(IntPtr Destination, uint ContextFlags, IntPtr Source);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CopyContext' -Namespace Win32 -PassThru
# $api::CopyContext(Destination, ContextFlags, Source)

#uselib "KERNEL32.dll"
#func global CopyContext "CopyContext" sptr, sptr, sptr
; CopyContext varptr(Destination), ContextFlags, varptr(Source)   ; 戻り値は stat
; Destination : CONTEXT* in/out -> "sptr"
; ContextFlags : CONTEXT_FLAGS -> "sptr"
; Source : CONTEXT* -> "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 "KERNEL32.dll"
#cfunc global CopyContext "CopyContext" var, int, var
; res = CopyContext(Destination, ContextFlags, Source)
; Destination : CONTEXT* in/out -> "var"
; ContextFlags : CONTEXT_FLAGS -> "int"
; Source : CONTEXT* -> "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 "KERNEL32.dll"
#cfunc global CopyContext "CopyContext" sptr, int, sptr
; res = CopyContext(varptr(Destination), ContextFlags, varptr(Source))
; Destination : CONTEXT* in/out -> "sptr"
; ContextFlags : CONTEXT_FLAGS -> "int"
; Source : CONTEXT* -> "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:

; BOOL CopyContext(CONTEXT* Destination, CONTEXT_FLAGS ContextFlags, CONTEXT* Source)
#uselib "KERNEL32.dll"
#cfunc global CopyContext "CopyContext" var, int, var
; res = CopyContext(Destination, ContextFlags, Source)
; Destination : CONTEXT* in/out -> "var"
; ContextFlags : CONTEXT_FLAGS -> "int"
; Source : CONTEXT* -> "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。; BOOL CopyContext(CONTEXT* Destination, CONTEXT_FLAGS ContextFlags, CONTEXT* Source)
#uselib "KERNEL32.dll"
#cfunc global CopyContext "CopyContext" intptr, int, intptr
; res = CopyContext(varptr(Destination), ContextFlags, varptr(Source))
; Destination : CONTEXT* in/out -> "intptr"
; ContextFlags : CONTEXT_FLAGS -> "int"
; Source : CONTEXT* -> "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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCopyContext = kernel32.NewProc("CopyContext")
)

// Destination (CONTEXT* in/out), ContextFlags (CONTEXT_FLAGS), Source (CONTEXT*)
r1, _, err := procCopyContext.Call(
	uintptr(Destination),
	uintptr(ContextFlags),
	uintptr(Source),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CopyContext(
  Destination: Pointer;   // CONTEXT* in/out
  ContextFlags: DWORD;   // CONTEXT_FLAGS
  Source: Pointer   // CONTEXT*
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CopyContext';

result := DllCall("KERNEL32\CopyContext"
    , "Ptr", Destination   ; CONTEXT* in/out
    , "UInt", ContextFlags   ; CONTEXT_FLAGS
    , "Ptr", Source   ; CONTEXT*
    , "Int")   ; return: BOOL

●CopyContext(Destination, ContextFlags, Source) = DLL("KERNEL32.dll", "bool CopyContext(void*, dword, void*)")
# 呼び出し: CopyContext(Destination, ContextFlags, Source)
# Destination : CONTEXT* in/out -> "void*"
# ContextFlags : CONTEXT_FLAGS -> "dword"
# Source : CONTEXT* -> "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)。