DAD_DragEnterEx2

// SHELL32.dll
#include <windows.h>

BOOL DAD_DragEnterEx2(
    HWND hwndTarget,
    POINT ptStart,
    IDataObject* pdtObject   // optional
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function DAD_DragEnterEx2(
    hwndTarget As IntPtr,   ' HWND
    ptStart As POINT,   ' POINT
    pdtObject As IntPtr   ' IDataObject* optional
) As Boolean
End Function

' hwndTarget : HWND
' ptStart : POINT
' pdtObject : IDataObject* optional
Declare PtrSafe Function DAD_DragEnterEx2 Lib "shell32" ( _
    ByVal hwndTarget As LongPtr, _
    ByVal ptStart As LongPtr, _
    ByVal pdtObject 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

DAD_DragEnterEx2 = ctypes.windll.shell32.DAD_DragEnterEx2
DAD_DragEnterEx2.restype = wintypes.BOOL
DAD_DragEnterEx2.argtypes = [
    wintypes.HANDLE,  # hwndTarget : HWND
    POINT,  # ptStart : POINT
    ctypes.c_void_p,  # pdtObject : IDataObject* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
DAD_DragEnterEx2 = Fiddle::Function.new(
  lib['DAD_DragEnterEx2'],
  [
    Fiddle::TYPE_VOIDP,  # hwndTarget : HWND
    Fiddle::TYPE_VOIDP,  # ptStart : POINT
    Fiddle::TYPE_VOIDP,  # pdtObject : IDataObject* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn DAD_DragEnterEx2(
        hwndTarget: *mut core::ffi::c_void,  // HWND
        ptStart: POINT,  // POINT
        pdtObject: *mut core::ffi::c_void  // IDataObject* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll")]
public static extern bool DAD_DragEnterEx2(IntPtr hwndTarget, POINT ptStart, IntPtr pdtObject);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_DAD_DragEnterEx2' -Namespace Win32 -PassThru
# $api::DAD_DragEnterEx2(hwndTarget, ptStart, pdtObject)

#uselib "SHELL32.dll"
#func global DAD_DragEnterEx2 "DAD_DragEnterEx2" sptr, sptr, sptr
; DAD_DragEnterEx2 hwndTarget, ptStart, pdtObject   ; 戻り値は stat
; hwndTarget : HWND -> "sptr"
; ptStart : POINT -> "sptr"
; pdtObject : IDataObject* optional -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "SHELL32.dll"
#cfunc global DAD_DragEnterEx2 "DAD_DragEnterEx2" sptr, int, sptr
; res = DAD_DragEnterEx2(hwndTarget, ptStart, pdtObject)
; hwndTarget : HWND -> "sptr"
; ptStart : POINT -> "int"
; pdtObject : IDataObject* optional -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

; BOOL DAD_DragEnterEx2(HWND hwndTarget, POINT ptStart, IDataObject* pdtObject)
#uselib "SHELL32.dll"
#cfunc global DAD_DragEnterEx2 "DAD_DragEnterEx2" intptr, int, intptr
; res = DAD_DragEnterEx2(hwndTarget, ptStart, pdtObject)
; hwndTarget : HWND -> "intptr"
; ptStart : POINT -> "int"
; pdtObject : IDataObject* optional -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procDAD_DragEnterEx2 = shell32.NewProc("DAD_DragEnterEx2")
)

// hwndTarget (HWND), ptStart (POINT), pdtObject (IDataObject* optional)
r1, _, err := procDAD_DragEnterEx2.Call(
	uintptr(hwndTarget),
	uintptr(ptStart),
	uintptr(pdtObject),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DAD_DragEnterEx2(
  hwndTarget: THandle;   // HWND
  ptStart: POINT;   // POINT
  pdtObject: Pointer   // IDataObject* optional
): BOOL; stdcall;
  external 'SHELL32.dll' name 'DAD_DragEnterEx2';

result := DllCall("SHELL32\DAD_DragEnterEx2"
    , "Ptr", hwndTarget   ; HWND
    , "Ptr", ptStart   ; POINT
    , "Ptr", pdtObject   ; IDataObject* optional
    , "Int")   ; return: BOOL

●DAD_DragEnterEx2(hwndTarget, ptStart, pdtObject) = DLL("SHELL32.dll", "bool DAD_DragEnterEx2(void*, void*, void*)")
# 呼び出し: DAD_DragEnterEx2(hwndTarget, ptStart, pdtObject)
# hwndTarget : HWND -> "void*"
# ptStart : POINT -> "void*"
# pdtObject : IDataObject* optional -> "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)。