DwmEnableComposition

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

HRESULT DwmEnableComposition(
    DWORD uCompositionAction
);

<DllImport("dwmapi.dll", ExactSpelling:=True)>
Public Shared Function DwmEnableComposition(
    uCompositionAction As UInteger   ' DWORD
) As Integer
End Function

' uCompositionAction : DWORD
Declare PtrSafe Function DwmEnableComposition Lib "dwmapi" ( _
    ByVal uCompositionAction 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

DwmEnableComposition = ctypes.windll.dwmapi.DwmEnableComposition
DwmEnableComposition.restype = ctypes.c_int
DwmEnableComposition.argtypes = [
    wintypes.DWORD,  # uCompositionAction : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dwmapi.dll')
DwmEnableComposition = Fiddle::Function.new(
  lib['DwmEnableComposition'],
  [
    -Fiddle::TYPE_INT,  # uCompositionAction : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "dwmapi")]
extern "system" {
    fn DwmEnableComposition(
        uCompositionAction: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dwmapi.dll")]
public static extern int DwmEnableComposition(uint uCompositionAction);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dwmapi_DwmEnableComposition' -Namespace Win32 -PassThru
# $api::DwmEnableComposition(uCompositionAction)

#uselib "dwmapi.dll"
#func global DwmEnableComposition "DwmEnableComposition" sptr
; DwmEnableComposition uCompositionAction   ; 戻り値は stat
; uCompositionAction : DWORD -> "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 DwmEnableComposition "DwmEnableComposition" int
; res = DwmEnableComposition(uCompositionAction)
; uCompositionAction : DWORD -> "int"

; HRESULT DwmEnableComposition(DWORD uCompositionAction)
#uselib "dwmapi.dll"
#cfunc global DwmEnableComposition "DwmEnableComposition" int
; res = DwmEnableComposition(uCompositionAction)
; uCompositionAction : DWORD -> "int"

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

var (
	dwmapi = windows.NewLazySystemDLL("dwmapi.dll")
	procDwmEnableComposition = dwmapi.NewProc("DwmEnableComposition")
)

// uCompositionAction (DWORD)
r1, _, err := procDwmEnableComposition.Call(
	uintptr(uCompositionAction),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DwmEnableComposition(
  uCompositionAction: DWORD   // DWORD
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmEnableComposition';

result := DllCall("dwmapi\DwmEnableComposition"
    , "UInt", uCompositionAction   ; DWORD
    , "Int")   ; return: HRESULT

●DwmEnableComposition(uCompositionAction) = DLL("dwmapi.dll", "int DwmEnableComposition(dword)")
# 呼び出し: DwmEnableComposition(uCompositionAction)
# uCompositionAction : DWORD -> "dword"
# 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)。