Win32 API 日本語リファレンス
ホームUI.Input.Pointer › GetPointerDevice

GetPointerDevice

関数
指定したデバイスハンドルのポインターデバイス情報を取得する。
DLLUSER32.dll呼出規約winapiSetLastErrorあり対応OSwindows8.0

シグネチャ

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

BOOL GetPointerDevice(
    HANDLE device,
    POINTER_DEVICE_INFO* pointerDevice
);

パラメーター

名前方向説明
deviceHANDLEin情報を取得するポインタデバイスのハンドルを指定する。
pointerDevicePOINTER_DEVICE_INFO*outデバイス情報を受け取るPOINTER_DEVICE_INFO構造体へのポインタ。

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetPointerDevice(
    HANDLE device,
    POINTER_DEVICE_INFO* pointerDevice
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetPointerDevice(
    IntPtr device,   // HANDLE
    IntPtr pointerDevice   // POINTER_DEVICE_INFO* out
);
<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetPointerDevice(
    device As IntPtr,   ' HANDLE
    pointerDevice As IntPtr   ' POINTER_DEVICE_INFO* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
' device : HANDLE
' pointerDevice : POINTER_DEVICE_INFO* out
Declare PtrSafe Function GetPointerDevice Lib "user32" ( _
    ByVal device As LongPtr, _
    ByVal pointerDevice 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

GetPointerDevice = ctypes.windll.user32.GetPointerDevice
GetPointerDevice.restype = wintypes.BOOL
GetPointerDevice.argtypes = [
    wintypes.HANDLE,  # device : HANDLE
    ctypes.c_void_p,  # pointerDevice : POINTER_DEVICE_INFO* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetPointerDevice = Fiddle::Function.new(
  lib['GetPointerDevice'],
  [
    Fiddle::TYPE_VOIDP,  # device : HANDLE
    Fiddle::TYPE_VOIDP,  # pointerDevice : POINTER_DEVICE_INFO* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "user32")]
extern "system" {
    fn GetPointerDevice(
        device: *mut core::ffi::c_void,  // HANDLE
        pointerDevice: *mut POINTER_DEVICE_INFO  // POINTER_DEVICE_INFO* 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 GetPointerDevice(IntPtr device, IntPtr pointerDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetPointerDevice' -Namespace Win32 -PassThru
# $api::GetPointerDevice(device, pointerDevice)
#uselib "USER32.dll"
#func global GetPointerDevice "GetPointerDevice" sptr, sptr
; GetPointerDevice device, varptr(pointerDevice)   ; 戻り値は stat
; device : HANDLE -> "sptr"
; pointerDevice : POINTER_DEVICE_INFO* 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 GetPointerDevice "GetPointerDevice" sptr, var
; res = GetPointerDevice(device, pointerDevice)
; device : HANDLE -> "sptr"
; pointerDevice : POINTER_DEVICE_INFO* 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。
出力引数:
; BOOL GetPointerDevice(HANDLE device, POINTER_DEVICE_INFO* pointerDevice)
#uselib "USER32.dll"
#cfunc global GetPointerDevice "GetPointerDevice" intptr, var
; res = GetPointerDevice(device, pointerDevice)
; device : HANDLE -> "intptr"
; pointerDevice : POINTER_DEVICE_INFO* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetPointerDevice = user32.NewProc("GetPointerDevice")
)

// device (HANDLE), pointerDevice (POINTER_DEVICE_INFO* out)
r1, _, err := procGetPointerDevice.Call(
	uintptr(device),
	uintptr(pointerDevice),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function GetPointerDevice(
  device: THandle;   // HANDLE
  pointerDevice: Pointer   // POINTER_DEVICE_INFO* out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetPointerDevice';
result := DllCall("USER32\GetPointerDevice"
    , "Ptr", device   ; HANDLE
    , "Ptr", pointerDevice   ; POINTER_DEVICE_INFO* out
    , "Int")   ; return: BOOL
●GetPointerDevice(device, pointerDevice) = DLL("USER32.dll", "bool GetPointerDevice(void*, void*)")
# 呼び出し: GetPointerDevice(device, pointerDevice)
# device : HANDLE -> "void*"
# pointerDevice : POINTER_DEVICE_INFO* 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)。
const std = @import("std");

extern "user32" fn GetPointerDevice(
    device: ?*anyopaque, // HANDLE
    pointerDevice: [*c]POINTER_DEVICE_INFO // POINTER_DEVICE_INFO* out
) callconv(std.os.windows.WINAPI) i32;
proc GetPointerDevice(
    device: pointer,  # HANDLE
    pointerDevice: ptr POINTER_DEVICE_INFO  # POINTER_DEVICE_INFO* out
): int32 {.importc: "GetPointerDevice", stdcall, dynlib: "USER32.dll".}
pragma(lib, "user32");
extern(Windows)
int GetPointerDevice(
    void* device,   // HANDLE
    POINTER_DEVICE_INFO* pointerDevice   // POINTER_DEVICE_INFO* out
);
ccall((:GetPointerDevice, "USER32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{POINTER_DEVICE_INFO}),
      device, pointerDevice)
# device : HANDLE -> Ptr{Cvoid}
# pointerDevice : POINTER_DEVICE_INFO* out -> Ptr{POINTER_DEVICE_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t GetPointerDevice(
    void* device,
    void* pointerDevice);
]]
local user32 = ffi.load("user32")
-- user32.GetPointerDevice(device, pointerDevice)
-- device : HANDLE
-- pointerDevice : POINTER_DEVICE_INFO* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('USER32.dll');
const GetPointerDevice = lib.func('__stdcall', 'GetPointerDevice', 'int32_t', ['void *', 'void *']);
// GetPointerDevice(device, pointerDevice)
// device : HANDLE -> 'void *'
// pointerDevice : POINTER_DEVICE_INFO* out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("USER32.dll", {
  GetPointerDevice: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GetPointerDevice(device, pointerDevice)
// device : HANDLE -> "pointer"
// pointerDevice : POINTER_DEVICE_INFO* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t GetPointerDevice(
    void* device,
    void* pointerDevice);
C, "USER32.dll");
// $ffi->GetPointerDevice(device, pointerDevice);
// device : HANDLE
// pointerDevice : POINTER_DEVICE_INFO* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface User32 extends StdCallLibrary {
    User32 INSTANCE = Native.load("user32", User32.class);
    boolean GetPointerDevice(
        Pointer device,   // HANDLE
        Pointer pointerDevice   // POINTER_DEVICE_INFO* out
    );
}
@[Link("user32")]
lib LibUSER32
  fun GetPointerDevice = GetPointerDevice(
    device : Void*,   # HANDLE
    pointerDevice : POINTER_DEVICE_INFO*   # POINTER_DEVICE_INFO* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetPointerDeviceNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef GetPointerDeviceDart = int Function(Pointer<Void>, Pointer<Void>);
final GetPointerDevice = DynamicLibrary.open('USER32.dll')
    .lookupFunction<GetPointerDeviceNative, GetPointerDeviceDart>('GetPointerDevice');
// device : HANDLE -> Pointer<Void>
// pointerDevice : POINTER_DEVICE_INFO* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function GetPointerDevice(
  device: THandle;   // HANDLE
  pointerDevice: Pointer   // POINTER_DEVICE_INFO* out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetPointerDevice';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetPointerDevice"
  c_GetPointerDevice :: Ptr () -> Ptr () -> IO CInt
-- device : HANDLE -> Ptr ()
-- pointerDevice : POINTER_DEVICE_INFO* out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let getpointerdevice =
  foreign "GetPointerDevice"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* device : HANDLE -> (ptr void) *)
(* pointerDevice : POINTER_DEVICE_INFO* out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library user32 (t "USER32.dll"))
(cffi:use-foreign-library user32)

(cffi:defcfun ("GetPointerDevice" get-pointer-device :convention :stdcall) :int32
  (device :pointer)   ; HANDLE
  (pointer-device :pointer))   ; POINTER_DEVICE_INFO* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $GetPointerDevice = Win32::API::More->new('USER32',
    'BOOL GetPointerDevice(HANDLE device, LPVOID pointerDevice)');
# my $ret = $GetPointerDevice->Call($device, $pointerDevice);
# device : HANDLE -> HANDLE
# pointerDevice : POINTER_DEVICE_INFO* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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