ホーム › UI.Input.KeyboardAndMouse › GetKeyboardState

GetKeyboardState

関数

全仮想キーの状態を配列としてまとめて取得する。

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 GetKeyboardState(
    BYTE* lpKeyState
);

パラメーター

名前	型	方向
lpKeyState	BYTE*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetKeyboardState(
    BYTE* lpKeyState
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetKeyboardState(
    IntPtr lpKeyState   // BYTE* out
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetKeyboardState(
    lpKeyState As IntPtr   ' BYTE* out
) As Boolean
End Function

' lpKeyState : BYTE* out
Declare PtrSafe Function GetKeyboardState Lib "user32" ( _
    ByVal lpKeyState 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

GetKeyboardState = ctypes.windll.user32.GetKeyboardState
GetKeyboardState.restype = wintypes.BOOL
GetKeyboardState.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # lpKeyState : BYTE* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetKeyboardState = Fiddle::Function.new(
  lib['GetKeyboardState'],
  [
    Fiddle::TYPE_VOIDP,  # lpKeyState : BYTE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetKeyboardState(
        lpKeyState: *mut u8  // BYTE* out
    ) -> 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 GetKeyboardState(IntPtr lpKeyState);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetKeyboardState' -Namespace Win32 -PassThru
# $api::GetKeyboardState(lpKeyState)

#uselib "USER32.dll"
#func global GetKeyboardState "GetKeyboardState" sptr
; GetKeyboardState varptr(lpKeyState)   ; 戻り値は stat
; lpKeyState : BYTE* out -> "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 "USER32.dll"
#cfunc global GetKeyboardState "GetKeyboardState" var
; res = GetKeyboardState(lpKeyState)
; lpKeyState : BYTE* 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 "USER32.dll"
#cfunc global GetKeyboardState "GetKeyboardState" sptr
; res = GetKeyboardState(varptr(lpKeyState))
; lpKeyState : BYTE* 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:

; BOOL GetKeyboardState(BYTE* lpKeyState)
#uselib "USER32.dll"
#cfunc global GetKeyboardState "GetKeyboardState" var
; res = GetKeyboardState(lpKeyState)
; lpKeyState : BYTE* 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。; BOOL GetKeyboardState(BYTE* lpKeyState)
#uselib "USER32.dll"
#cfunc global GetKeyboardState "GetKeyboardState" intptr
; res = GetKeyboardState(varptr(lpKeyState))
; lpKeyState : BYTE* 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 (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetKeyboardState = user32.NewProc("GetKeyboardState")
)

// lpKeyState (BYTE* out)
r1, _, err := procGetKeyboardState.Call(
	uintptr(lpKeyState),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetKeyboardState(
  lpKeyState: Pointer   // BYTE* out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetKeyboardState';

result := DllCall("USER32\GetKeyboardState"
    , "Ptr", lpKeyState   ; BYTE* out
    , "Int")   ; return: BOOL

●GetKeyboardState(lpKeyState) = DLL("USER32.dll", "bool GetKeyboardState(void*)")
# 呼び出し: GetKeyboardState(lpKeyState)
# lpKeyState : BYTE* 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)。