IsCompositionActive

関数

デスクトップコンポジション(DWM)が有効かどうかを判定する。

DLLUXTHEME.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

BOOL IsCompositionActive(void);

パラメーターなし。戻り値: BOOL

各言語での呼び出し定義

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

BOOL IsCompositionActive(void);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("UXTHEME.dll", ExactSpelling = true)]
static extern bool IsCompositionActive();

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function IsCompositionActive() As Boolean
End Function

Declare PtrSafe Function IsCompositionActive Lib "uxtheme" () As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

IsCompositionActive = ctypes.windll.uxtheme.IsCompositionActive
IsCompositionActive.restype = wintypes.BOOL
IsCompositionActive.argtypes = []

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
IsCompositionActive = Fiddle::Function.new(
  lib['IsCompositionActive'],
  [],
  Fiddle::TYPE_INT)

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

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("UXTHEME.dll")]
public static extern bool IsCompositionActive();
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_IsCompositionActive' -Namespace Win32 -PassThru
# $api::IsCompositionActive()

#uselib "UXTHEME.dll"
#func global IsCompositionActive "IsCompositionActive"
; IsCompositionActive   ; 戻り値は stat
; ※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 "UXTHEME.dll"
#cfunc global IsCompositionActive "IsCompositionActive"
; res = IsCompositionActive()

; BOOL IsCompositionActive()
#uselib "UXTHEME.dll"
#cfunc global IsCompositionActive "IsCompositionActive"
; res = IsCompositionActive()

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

var (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procIsCompositionActive = uxtheme.NewProc("IsCompositionActive")
)

r1, _, err := procIsCompositionActive.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function IsCompositionActive: BOOL; stdcall;
  external 'UXTHEME.dll' name 'IsCompositionActive';

result := DllCall("UXTHEME\IsCompositionActive", "Int")

●IsCompositionActive() = DLL("UXTHEME.dll", "bool IsCompositionActive()")
# 呼び出し: IsCompositionActive()
# 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)。