DwmRenderGesture

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

HRESULT DwmRenderGesture(
    GESTURE_TYPE gt,
    DWORD cContacts,
    const DWORD* pdwPointerID,
    const POINT* pPoints
);

<DllImport("dwmapi.dll", ExactSpelling:=True)>
Public Shared Function DwmRenderGesture(
    gt As Integer,   ' GESTURE_TYPE
    cContacts As UInteger,   ' DWORD
    ByRef pdwPointerID As UInteger,   ' DWORD*
    pPoints As IntPtr   ' POINT*
) As Integer
End Function

' gt : GESTURE_TYPE
' cContacts : DWORD
' pdwPointerID : DWORD*
' pPoints : POINT*
Declare PtrSafe Function DwmRenderGesture Lib "dwmapi" ( _
    ByVal gt As Long, _
    ByVal cContacts As Long, _
    ByRef pdwPointerID As Long, _
    ByVal pPoints 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

DwmRenderGesture = ctypes.windll.dwmapi.DwmRenderGesture
DwmRenderGesture.restype = ctypes.c_int
DwmRenderGesture.argtypes = [
    ctypes.c_int,  # gt : GESTURE_TYPE
    wintypes.DWORD,  # cContacts : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pdwPointerID : DWORD*
    ctypes.c_void_p,  # pPoints : POINT*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dwmapi.dll')
DwmRenderGesture = Fiddle::Function.new(
  lib['DwmRenderGesture'],
  [
    Fiddle::TYPE_INT,  # gt : GESTURE_TYPE
    -Fiddle::TYPE_INT,  # cContacts : DWORD
    Fiddle::TYPE_VOIDP,  # pdwPointerID : DWORD*
    Fiddle::TYPE_VOIDP,  # pPoints : POINT*
  ],
  Fiddle::TYPE_INT)

#[link(name = "dwmapi")]
extern "system" {
    fn DwmRenderGesture(
        gt: i32,  // GESTURE_TYPE
        cContacts: u32,  // DWORD
        pdwPointerID: *const u32,  // DWORD*
        pPoints: *const POINT  // POINT*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dwmapi.dll")]
public static extern int DwmRenderGesture(int gt, uint cContacts, ref uint pdwPointerID, IntPtr pPoints);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dwmapi_DwmRenderGesture' -Namespace Win32 -PassThru
# $api::DwmRenderGesture(gt, cContacts, pdwPointerID, pPoints)

#uselib "dwmapi.dll"
#func global DwmRenderGesture "DwmRenderGesture" sptr, sptr, sptr, sptr
; DwmRenderGesture gt, cContacts, varptr(pdwPointerID), varptr(pPoints)   ; 戻り値は stat
; gt : GESTURE_TYPE -> "sptr"
; cContacts : DWORD -> "sptr"
; pdwPointerID : DWORD* -> "sptr"
; pPoints : POINT* -> "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 "dwmapi.dll"
#cfunc global DwmRenderGesture "DwmRenderGesture" int, int, var, var
; res = DwmRenderGesture(gt, cContacts, pdwPointerID, pPoints)
; gt : GESTURE_TYPE -> "int"
; cContacts : DWORD -> "int"
; pdwPointerID : DWORD* -> "var"
; pPoints : POINT* -> "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。

; HRESULT DwmRenderGesture(GESTURE_TYPE gt, DWORD cContacts, DWORD* pdwPointerID, POINT* pPoints)
#uselib "dwmapi.dll"
#cfunc global DwmRenderGesture "DwmRenderGesture" int, int, var, var
; res = DwmRenderGesture(gt, cContacts, pdwPointerID, pPoints)
; gt : GESTURE_TYPE -> "int"
; cContacts : DWORD -> "int"
; pdwPointerID : DWORD* -> "var"
; pPoints : POINT* -> "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 (
	dwmapi = windows.NewLazySystemDLL("dwmapi.dll")
	procDwmRenderGesture = dwmapi.NewProc("DwmRenderGesture")
)

// gt (GESTURE_TYPE), cContacts (DWORD), pdwPointerID (DWORD*), pPoints (POINT*)
r1, _, err := procDwmRenderGesture.Call(
	uintptr(gt),
	uintptr(cContacts),
	uintptr(pdwPointerID),
	uintptr(pPoints),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DwmRenderGesture(
  gt: Integer;   // GESTURE_TYPE
  cContacts: DWORD;   // DWORD
  pdwPointerID: Pointer;   // DWORD*
  pPoints: Pointer   // POINT*
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmRenderGesture';

result := DllCall("dwmapi\DwmRenderGesture"
    , "Int", gt   ; GESTURE_TYPE
    , "UInt", cContacts   ; DWORD
    , "Ptr", pdwPointerID   ; DWORD*
    , "Ptr", pPoints   ; POINT*
    , "Int")   ; return: HRESULT

●DwmRenderGesture(gt, cContacts, pdwPointerID, pPoints) = DLL("dwmapi.dll", "int DwmRenderGesture(int, dword, void*, void*)")
# 呼び出し: DwmRenderGesture(gt, cContacts, pdwPointerID, pPoints)
# gt : GESTURE_TYPE -> "int"
# cContacts : DWORD -> "dword"
# pdwPointerID : DWORD* -> "void*"
# pPoints : POINT* -> "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)。