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UnhookWindowsHookEx

関数

SetWindowsHookExで設定したフックプロシージャを解除する。

DLLUSER32.dll呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降

シグネチャ

// USER32.dll
#include <windows.h>

BOOL UnhookWindowsHookEx(
    HHOOK hhk
);

パラメーター

名前	型	方向
hhk	HHOOK	in

戻り値の型: BOOL

各言語での呼び出し定義

// USER32.dll
#include <windows.h>

BOOL UnhookWindowsHookEx(
    HHOOK hhk
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool UnhookWindowsHookEx(
    IntPtr hhk   // HHOOK
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function UnhookWindowsHookEx(
    hhk As IntPtr   ' HHOOK
) As Boolean
End Function

' hhk : HHOOK
Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" ( _
    ByVal hhk 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

UnhookWindowsHookEx = ctypes.windll.user32.UnhookWindowsHookEx
UnhookWindowsHookEx.restype = wintypes.BOOL
UnhookWindowsHookEx.argtypes = [
    wintypes.HANDLE,  # hhk : HHOOK
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
UnhookWindowsHookEx = Fiddle::Function.new(
  lib['UnhookWindowsHookEx'],
  [
    Fiddle::TYPE_VOIDP,  # hhk : HHOOK
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn UnhookWindowsHookEx(
        hhk: *mut core::ffi::c_void  // HHOOK
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool UnhookWindowsHookEx(IntPtr hhk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_UnhookWindowsHookEx' -Namespace Win32 -PassThru
# $api::UnhookWindowsHookEx(hhk)

#uselib "USER32.dll"
#func global UnhookWindowsHookEx "UnhookWindowsHookEx" sptr
; UnhookWindowsHookEx hhk   ; 戻り値は stat
; hhk : HHOOK -> "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 "USER32.dll"
#cfunc global UnhookWindowsHookEx "UnhookWindowsHookEx" sptr
; res = UnhookWindowsHookEx(hhk)
; hhk : HHOOK -> "sptr"

; BOOL UnhookWindowsHookEx(HHOOK hhk)
#uselib "USER32.dll"
#cfunc global UnhookWindowsHookEx "UnhookWindowsHookEx" intptr
; res = UnhookWindowsHookEx(hhk)
; hhk : HHOOK -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procUnhookWindowsHookEx = user32.NewProc("UnhookWindowsHookEx")
)

// hhk (HHOOK)
r1, _, err := procUnhookWindowsHookEx.Call(
	uintptr(hhk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UnhookWindowsHookEx(
  hhk: THandle   // HHOOK
): BOOL; stdcall;
  external 'USER32.dll' name 'UnhookWindowsHookEx';

result := DllCall("USER32\UnhookWindowsHookEx"
    , "Ptr", hhk   ; HHOOK
    , "Int")   ; return: BOOL

●UnhookWindowsHookEx(hhk) = DLL("USER32.dll", "bool UnhookWindowsHookEx(void*)")
# 呼び出し: UnhookWindowsHookEx(hhk)
# hhk : HHOOK -> "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)。