DCompositionAttachMouseDragToHwnd

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

HRESULT DCompositionAttachMouseDragToHwnd(
    IDCompositionVisual* visual,
    HWND hwnd,
    BOOL enable
);

<DllImport("dcomp.dll", ExactSpelling:=True)>
Public Shared Function DCompositionAttachMouseDragToHwnd(
    visual As IntPtr,   ' IDCompositionVisual*
    hwnd As IntPtr,   ' HWND
    enable As Boolean   ' BOOL
) As Integer
End Function

' visual : IDCompositionVisual*
' hwnd : HWND
' enable : BOOL
Declare PtrSafe Function DCompositionAttachMouseDragToHwnd Lib "dcomp" ( _
    ByVal visual As LongPtr, _
    ByVal hwnd As LongPtr, _
    ByVal enable 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

DCompositionAttachMouseDragToHwnd = ctypes.windll.dcomp.DCompositionAttachMouseDragToHwnd
DCompositionAttachMouseDragToHwnd.restype = ctypes.c_int
DCompositionAttachMouseDragToHwnd.argtypes = [
    ctypes.c_void_p,  # visual : IDCompositionVisual*
    wintypes.HANDLE,  # hwnd : HWND
    wintypes.BOOL,  # enable : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dcomp.dll')
DCompositionAttachMouseDragToHwnd = Fiddle::Function.new(
  lib['DCompositionAttachMouseDragToHwnd'],
  [
    Fiddle::TYPE_VOIDP,  # visual : IDCompositionVisual*
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    Fiddle::TYPE_INT,  # enable : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "dcomp")]
extern "system" {
    fn DCompositionAttachMouseDragToHwnd(
        visual: *mut core::ffi::c_void,  // IDCompositionVisual*
        hwnd: *mut core::ffi::c_void,  // HWND
        enable: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dcomp.dll")]
public static extern int DCompositionAttachMouseDragToHwnd(IntPtr visual, IntPtr hwnd, bool enable);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dcomp_DCompositionAttachMouseDragToHwnd' -Namespace Win32 -PassThru
# $api::DCompositionAttachMouseDragToHwnd(visual, hwnd, enable)

#uselib "dcomp.dll"
#func global DCompositionAttachMouseDragToHwnd "DCompositionAttachMouseDragToHwnd" sptr, sptr, sptr
; DCompositionAttachMouseDragToHwnd visual, hwnd, enable   ; 戻り値は stat
; visual : IDCompositionVisual* -> "sptr"
; hwnd : HWND -> "sptr"
; enable : BOOL -> "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 "dcomp.dll"
#cfunc global DCompositionAttachMouseDragToHwnd "DCompositionAttachMouseDragToHwnd" sptr, sptr, int
; res = DCompositionAttachMouseDragToHwnd(visual, hwnd, enable)
; visual : IDCompositionVisual* -> "sptr"
; hwnd : HWND -> "sptr"
; enable : BOOL -> "int"

; HRESULT DCompositionAttachMouseDragToHwnd(IDCompositionVisual* visual, HWND hwnd, BOOL enable)
#uselib "dcomp.dll"
#cfunc global DCompositionAttachMouseDragToHwnd "DCompositionAttachMouseDragToHwnd" intptr, intptr, int
; res = DCompositionAttachMouseDragToHwnd(visual, hwnd, enable)
; visual : IDCompositionVisual* -> "intptr"
; hwnd : HWND -> "intptr"
; enable : BOOL -> "int"

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

var (
	dcomp = windows.NewLazySystemDLL("dcomp.dll")
	procDCompositionAttachMouseDragToHwnd = dcomp.NewProc("DCompositionAttachMouseDragToHwnd")
)

// visual (IDCompositionVisual*), hwnd (HWND), enable (BOOL)
r1, _, err := procDCompositionAttachMouseDragToHwnd.Call(
	uintptr(visual),
	uintptr(hwnd),
	uintptr(enable),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DCompositionAttachMouseDragToHwnd(
  visual: Pointer;   // IDCompositionVisual*
  hwnd: THandle;   // HWND
  enable: BOOL   // BOOL
): Integer; stdcall;
  external 'dcomp.dll' name 'DCompositionAttachMouseDragToHwnd';

result := DllCall("dcomp\DCompositionAttachMouseDragToHwnd"
    , "Ptr", visual   ; IDCompositionVisual*
    , "Ptr", hwnd   ; HWND
    , "Int", enable   ; BOOL
    , "Int")   ; return: HRESULT

●DCompositionAttachMouseDragToHwnd(visual, hwnd, enable) = DLL("dcomp.dll", "int DCompositionAttachMouseDragToHwnd(void*, void*, bool)")
# 呼び出し: DCompositionAttachMouseDragToHwnd(visual, hwnd, enable)
# visual : IDCompositionVisual* -> "void*"
# hwnd : HWND -> "void*"
# enable : BOOL -> "bool"
# 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)。