GetTouchInputInfo

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

BOOL GetTouchInputInfo(
    HTOUCHINPUT hTouchInput,
    DWORD cInputs,
    TOUCHINPUT* pInputs,
    INT cbSize
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetTouchInputInfo(
    hTouchInput As IntPtr,   ' HTOUCHINPUT
    cInputs As UInteger,   ' DWORD
    pInputs As IntPtr,   ' TOUCHINPUT* out
    cbSize As Integer   ' INT
) As Boolean
End Function

' hTouchInput : HTOUCHINPUT
' cInputs : DWORD
' pInputs : TOUCHINPUT* out
' cbSize : INT
Declare PtrSafe Function GetTouchInputInfo Lib "user32" ( _
    ByVal hTouchInput As LongPtr, _
    ByVal cInputs As Long, _
    ByVal pInputs As LongPtr, _
    ByVal cbSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetTouchInputInfo = ctypes.windll.user32.GetTouchInputInfo
GetTouchInputInfo.restype = wintypes.BOOL
GetTouchInputInfo.argtypes = [
    wintypes.HANDLE,  # hTouchInput : HTOUCHINPUT
    wintypes.DWORD,  # cInputs : DWORD
    ctypes.c_void_p,  # pInputs : TOUCHINPUT* out
    ctypes.c_int,  # cbSize : INT
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetTouchInputInfo = Fiddle::Function.new(
  lib['GetTouchInputInfo'],
  [
    Fiddle::TYPE_VOIDP,  # hTouchInput : HTOUCHINPUT
    -Fiddle::TYPE_INT,  # cInputs : DWORD
    Fiddle::TYPE_VOIDP,  # pInputs : TOUCHINPUT* out
    Fiddle::TYPE_INT,  # cbSize : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetTouchInputInfo(
        hTouchInput: *mut core::ffi::c_void,  // HTOUCHINPUT
        cInputs: u32,  // DWORD
        pInputs: *mut TOUCHINPUT,  // TOUCHINPUT* out
        cbSize: i32  // INT
    ) -> 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 GetTouchInputInfo(IntPtr hTouchInput, uint cInputs, IntPtr pInputs, int cbSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetTouchInputInfo' -Namespace Win32 -PassThru
# $api::GetTouchInputInfo(hTouchInput, cInputs, pInputs, cbSize)

#uselib "USER32.dll"
#func global GetTouchInputInfo "GetTouchInputInfo" sptr, sptr, sptr, sptr
; GetTouchInputInfo hTouchInput, cInputs, varptr(pInputs), cbSize   ; 戻り値は stat
; hTouchInput : HTOUCHINPUT -> "sptr"
; cInputs : DWORD -> "sptr"
; pInputs : TOUCHINPUT* out -> "sptr"
; cbSize : INT -> "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 GetTouchInputInfo "GetTouchInputInfo" sptr, int, var, int
; res = GetTouchInputInfo(hTouchInput, cInputs, pInputs, cbSize)
; hTouchInput : HTOUCHINPUT -> "sptr"
; cInputs : DWORD -> "int"
; pInputs : TOUCHINPUT* out -> "var"
; cbSize : INT -> "int"
; ※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 GetTouchInputInfo(HTOUCHINPUT hTouchInput, DWORD cInputs, TOUCHINPUT* pInputs, INT cbSize)
#uselib "USER32.dll"
#cfunc global GetTouchInputInfo "GetTouchInputInfo" intptr, int, var, int
; res = GetTouchInputInfo(hTouchInput, cInputs, pInputs, cbSize)
; hTouchInput : HTOUCHINPUT -> "intptr"
; cInputs : DWORD -> "int"
; pInputs : TOUCHINPUT* out -> "var"
; cbSize : INT -> "int"
; ※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")
	procGetTouchInputInfo = user32.NewProc("GetTouchInputInfo")
)

// hTouchInput (HTOUCHINPUT), cInputs (DWORD), pInputs (TOUCHINPUT* out), cbSize (INT)
r1, _, err := procGetTouchInputInfo.Call(
	uintptr(hTouchInput),
	uintptr(cInputs),
	uintptr(pInputs),
	uintptr(cbSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetTouchInputInfo(
  hTouchInput: THandle;   // HTOUCHINPUT
  cInputs: DWORD;   // DWORD
  pInputs: Pointer;   // TOUCHINPUT* out
  cbSize: Integer   // INT
): BOOL; stdcall;
  external 'USER32.dll' name 'GetTouchInputInfo';

result := DllCall("USER32\GetTouchInputInfo"
    , "Ptr", hTouchInput   ; HTOUCHINPUT
    , "UInt", cInputs   ; DWORD
    , "Ptr", pInputs   ; TOUCHINPUT* out
    , "Int", cbSize   ; INT
    , "Int")   ; return: BOOL

●GetTouchInputInfo(hTouchInput, cInputs, pInputs, cbSize) = DLL("USER32.dll", "bool GetTouchInputInfo(void*, dword, void*, int)")
# 呼び出し: GetTouchInputInfo(hTouchInput, cInputs, pInputs, cbSize)
# hTouchInput : HTOUCHINPUT -> "void*"
# cInputs : DWORD -> "dword"
# pInputs : TOUCHINPUT* out -> "void*"
# cbSize : INT -> "int"
# 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)。