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 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。

#uselib "USER32.dll"
#cfunc global GetPointerDeviceCursors "GetPointerDeviceCursors" sptr, var, var
; res = GetPointerDeviceCursors(device, cursorCount, deviceCursors)
; device : HANDLE -> "sptr"
; cursorCount : DWORD* in/out -> "var"
; deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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 GetPointerDeviceCursors(HANDLE device, DWORD* cursorCount, POINTER_DEVICE_CURSOR_INFO* deviceCursors)
#uselib "USER32.dll"
#cfunc global GetPointerDeviceCursors "GetPointerDeviceCursors" intptr, var, var
; res = GetPointerDeviceCursors(device, cursorCount, deviceCursors)
; device : HANDLE -> "intptr"
; cursorCount : DWORD* in/out -> "var"
; deviceCursors : POINTER_DEVICE_CURSOR_INFO* optional, 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")
	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)。