GetPointerDeviceCursors

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

BOOL GetPointerDeviceCursors(
    HANDLE device,
    DWORD* cursorCount,
    POINTER_DEVICE_CURSOR_INFO* deviceCursors   // optional
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetPointerDeviceCursors(
    device As IntPtr,   ' HANDLE
    ByRef cursorCount As UInteger,   ' DWORD* in/out
    deviceCursors As IntPtr   ' POINTER_DEVICE_CURSOR_INFO* optional, out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' device : HANDLE
' cursorCount : DWORD* in/out
' deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out
Declare PtrSafe Function GetPointerDeviceCursors Lib "user32" ( _
    ByVal device As LongPtr, _
    ByRef cursorCount As Long, _
    ByVal deviceCursors 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

GetPointerDeviceCursors = ctypes.windll.user32.GetPointerDeviceCursors
GetPointerDeviceCursors.restype = wintypes.BOOL
GetPointerDeviceCursors.argtypes = [
    wintypes.HANDLE,  # device : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # cursorCount : DWORD* in/out
    ctypes.c_void_p,  # deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetPointerDeviceCursors = Fiddle::Function.new(
  lib['GetPointerDeviceCursors'],
  [
    Fiddle::TYPE_VOIDP,  # device : HANDLE
    Fiddle::TYPE_VOIDP,  # cursorCount : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetPointerDeviceCursors(
        device: *mut core::ffi::c_void,  // HANDLE
        cursorCount: *mut u32,  // DWORD* in/out
        deviceCursors: *mut POINTER_DEVICE_CURSOR_INFO  // POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors(IntPtr device, ref uint cursorCount, IntPtr deviceCursors);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetPointerDeviceCursors' -Namespace Win32 -PassThru
# $api::GetPointerDeviceCursors(device, cursorCount, deviceCursors)

#uselib "USER32.dll"
#func global GetPointerDeviceCursors "GetPointerDeviceCursors" sptr, sptr, sptr
; GetPointerDeviceCursors device, varptr(cursorCount), varptr(deviceCursors)   ; 戻り値は stat
; device : HANDLE -> "sptr"
; cursorCount : DWORD* in/out -> "sptr"
; deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetPointerDeviceCursors = user32.NewProc("GetPointerDeviceCursors")
)

// device (HANDLE), cursorCount (DWORD* in/out), deviceCursors (POINTER_DEVICE_CURSOR_INFO* optional, out)
r1, _, err := procGetPointerDeviceCursors.Call(
	uintptr(device),
	uintptr(cursorCount),
	uintptr(deviceCursors),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetPointerDeviceCursors(
  device: THandle;   // HANDLE
  cursorCount: Pointer;   // DWORD* in/out
  deviceCursors: Pointer   // POINTER_DEVICE_CURSOR_INFO* optional, out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetPointerDeviceCursors';

result := DllCall("USER32\GetPointerDeviceCursors"
    , "Ptr", device   ; HANDLE
    , "Ptr", cursorCount   ; DWORD* in/out
    , "Ptr", deviceCursors   ; POINTER_DEVICE_CURSOR_INFO* optional, out
    , "Int")   ; return: BOOL

●GetPointerDeviceCursors(device, cursorCount, deviceCursors) = DLL("USER32.dll", "bool GetPointerDeviceCursors(void*, void*, void*)")
# 呼び出し: GetPointerDeviceCursors(device, cursorCount, deviceCursors)
# device : HANDLE -> "void*"
# cursorCount : DWORD* in/out -> "void*"
# deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors(
    device: ?*anyopaque, // HANDLE
    cursorCount: [*c]u32, // DWORD* in/out
    deviceCursors: [*c]POINTER_DEVICE_CURSOR_INFO // POINTER_DEVICE_CURSOR_INFO* optional, out
) callconv(std.os.windows.WINAPI) i32;

proc GetPointerDeviceCursors(
    device: pointer,  # HANDLE
    cursorCount: ptr uint32,  # DWORD* in/out
    deviceCursors: ptr POINTER_DEVICE_CURSOR_INFO  # POINTER_DEVICE_CURSOR_INFO* optional, out
): int32 {.importc: "GetPointerDeviceCursors", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
int GetPointerDeviceCursors(
    void* device,   // HANDLE
    uint* cursorCount,   // DWORD* in/out
    POINTER_DEVICE_CURSOR_INFO* deviceCursors   // POINTER_DEVICE_CURSOR_INFO* optional, out
);

ccall((:GetPointerDeviceCursors, "USER32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{UInt32}, Ptr{POINTER_DEVICE_CURSOR_INFO}),
      device, cursorCount, deviceCursors)
# device : HANDLE -> Ptr{Cvoid}
# cursorCount : DWORD* in/out -> Ptr{UInt32}
# deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out -> Ptr{POINTER_DEVICE_CURSOR_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetPointerDeviceCursors(
    void* device,
    uint32_t* cursorCount,
    void* deviceCursors);
]]
local user32 = ffi.load("user32")
-- user32.GetPointerDeviceCursors(device, cursorCount, deviceCursors)
-- device : HANDLE
-- cursorCount : DWORD* in/out
-- deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors = lib.func('__stdcall', 'GetPointerDeviceCursors', 'int32_t', ['void *', 'uint32_t *', 'void *']);
// GetPointerDeviceCursors(device, cursorCount, deviceCursors)
// device : HANDLE -> 'void *'
// cursorCount : DWORD* in/out -> 'uint32_t *'
// deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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", {
  GetPointerDeviceCursors: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.GetPointerDeviceCursors(device, cursorCount, deviceCursors)
// device : HANDLE -> "pointer"
// cursorCount : DWORD* in/out -> "pointer"
// deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors(
    void* device,
    uint32_t* cursorCount,
    void* deviceCursors);
C, "USER32.dll");
// $ffi->GetPointerDeviceCursors(device, cursorCount, deviceCursors);
// device : HANDLE
// cursorCount : DWORD* in/out
// deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors(
        Pointer device,   // HANDLE
        IntByReference cursorCount,   // DWORD* in/out
        Pointer deviceCursors   // POINTER_DEVICE_CURSOR_INFO* optional, out
    );
}

@[Link("user32")]
lib LibUSER32
  fun GetPointerDeviceCursors = GetPointerDeviceCursors(
    device : Void*,   # HANDLE
    cursorCount : UInt32*,   # DWORD* in/out
    deviceCursors : POINTER_DEVICE_CURSOR_INFO*   # POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursorsNative = Int32 Function(Pointer<Void>, Pointer<Uint32>, Pointer<Void>);
typedef GetPointerDeviceCursorsDart = int Function(Pointer<Void>, Pointer<Uint32>, Pointer<Void>);
final GetPointerDeviceCursors = DynamicLibrary.open('USER32.dll')
    .lookupFunction<GetPointerDeviceCursorsNative, GetPointerDeviceCursorsDart>('GetPointerDeviceCursors');
// device : HANDLE -> Pointer<Void>
// cursorCount : DWORD* in/out -> Pointer<Uint32>
// deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetPointerDeviceCursors(
  device: THandle;   // HANDLE
  cursorCount: Pointer;   // DWORD* in/out
  deviceCursors: Pointer   // POINTER_DEVICE_CURSOR_INFO* optional, out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetPointerDeviceCursors';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetPointerDeviceCursors"
  c_GetPointerDeviceCursors :: Ptr () -> Ptr Word32 -> Ptr () -> IO CInt
-- device : HANDLE -> Ptr ()
-- cursorCount : DWORD* in/out -> Ptr Word32
-- deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 getpointerdevicecursors =
  foreign "GetPointerDeviceCursors"
    ((ptr void) @-> (ptr uint32_t) @-> (ptr void) @-> returning int32_t)
(* device : HANDLE -> (ptr void) *)
(* cursorCount : DWORD* in/out -> (ptr uint32_t) *)
(* deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 ("GetPointerDeviceCursors" get-pointer-device-cursors :convention :stdcall) :int32
  (device :pointer)   ; HANDLE
  (cursor-count :pointer)   ; DWORD* in/out
  (device-cursors :pointer))   ; POINTER_DEVICE_CURSOR_INFO* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetPointerDeviceCursors = Win32::API::More->new('USER32',
    'BOOL GetPointerDeviceCursors(HANDLE device, LPVOID cursorCount, LPVOID deviceCursors)');
# my $ret = $GetPointerDeviceCursors->Call($device, $cursorCount, $deviceCursors);
# device : HANDLE -> HANDLE
# cursorCount : DWORD* in/out -> LPVOID
# deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。