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UpdateLayeredWindowIndirect

関数

構造体指定でレイヤードウィンドウを更新する。

DLLUSER32.dll呼出規約winapi

シグネチャ

// USER32.dll
#include <windows.h>

BOOL UpdateLayeredWindowIndirect(
    HWND hWnd,
    const UPDATELAYEREDWINDOWINFO* pULWInfo
);

パラメーター

名前	型	方向	説明
hWnd	HWND	in	更新するレイヤードウィンドウのハンドル。
pULWInfo	UPDATELAYEREDWINDOWINFO*	in	更新情報をまとめたUPDATELAYEREDWINDOWINFO構造体へのポインタ。cbSizeを設定する。

戻り値の型: BOOL

各言語での呼び出し定義

// USER32.dll
#include <windows.h>

BOOL UpdateLayeredWindowIndirect(
    HWND hWnd,
    const UPDATELAYEREDWINDOWINFO* pULWInfo
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", ExactSpelling = true)]
static extern bool UpdateLayeredWindowIndirect(
    IntPtr hWnd,   // HWND
    IntPtr pULWInfo   // UPDATELAYEREDWINDOWINFO*
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function UpdateLayeredWindowIndirect(
    hWnd As IntPtr,   ' HWND
    pULWInfo As IntPtr   ' UPDATELAYEREDWINDOWINFO*
) As Boolean
End Function

' hWnd : HWND
' pULWInfo : UPDATELAYEREDWINDOWINFO*
Declare PtrSafe Function UpdateLayeredWindowIndirect Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal pULWInfo 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

UpdateLayeredWindowIndirect = ctypes.windll.user32.UpdateLayeredWindowIndirect
UpdateLayeredWindowIndirect.restype = wintypes.BOOL
UpdateLayeredWindowIndirect.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    ctypes.c_void_p,  # pULWInfo : UPDATELAYEREDWINDOWINFO*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
UpdateLayeredWindowIndirect = Fiddle::Function.new(
  lib['UpdateLayeredWindowIndirect'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pULWInfo : UPDATELAYEREDWINDOWINFO*
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn UpdateLayeredWindowIndirect(
        hWnd: *mut core::ffi::c_void,  // HWND
        pULWInfo: *const UPDATELAYEREDWINDOWINFO  // UPDATELAYEREDWINDOWINFO*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll")]
public static extern bool UpdateLayeredWindowIndirect(IntPtr hWnd, IntPtr pULWInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_UpdateLayeredWindowIndirect' -Namespace Win32 -PassThru
# $api::UpdateLayeredWindowIndirect(hWnd, pULWInfo)

#uselib "USER32.dll"
#func global UpdateLayeredWindowIndirect "UpdateLayeredWindowIndirect" sptr, sptr
; UpdateLayeredWindowIndirect hWnd, varptr(pULWInfo)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; pULWInfo : UPDATELAYEREDWINDOWINFO* -> "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。

出力引数:

#uselib "USER32.dll"
#cfunc global UpdateLayeredWindowIndirect "UpdateLayeredWindowIndirect" sptr, var
; res = UpdateLayeredWindowIndirect(hWnd, pULWInfo)
; hWnd : HWND -> "sptr"
; pULWInfo : UPDATELAYEREDWINDOWINFO* -> "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。#uselib "USER32.dll"
#cfunc global UpdateLayeredWindowIndirect "UpdateLayeredWindowIndirect" sptr, sptr
; res = UpdateLayeredWindowIndirect(hWnd, varptr(pULWInfo))
; hWnd : HWND -> "sptr"
; pULWInfo : UPDATELAYEREDWINDOWINFO* -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; BOOL UpdateLayeredWindowIndirect(HWND hWnd, UPDATELAYEREDWINDOWINFO* pULWInfo)
#uselib "USER32.dll"
#cfunc global UpdateLayeredWindowIndirect "UpdateLayeredWindowIndirect" intptr, var
; res = UpdateLayeredWindowIndirect(hWnd, pULWInfo)
; hWnd : HWND -> "intptr"
; pULWInfo : UPDATELAYEREDWINDOWINFO* -> "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。; BOOL UpdateLayeredWindowIndirect(HWND hWnd, UPDATELAYEREDWINDOWINFO* pULWInfo)
#uselib "USER32.dll"
#cfunc global UpdateLayeredWindowIndirect "UpdateLayeredWindowIndirect" intptr, intptr
; res = UpdateLayeredWindowIndirect(hWnd, varptr(pULWInfo))
; hWnd : HWND -> "intptr"
; pULWInfo : UPDATELAYEREDWINDOWINFO* -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procUpdateLayeredWindowIndirect = user32.NewProc("UpdateLayeredWindowIndirect")
)

// hWnd (HWND), pULWInfo (UPDATELAYEREDWINDOWINFO*)
r1, _, err := procUpdateLayeredWindowIndirect.Call(
	uintptr(hWnd),
	uintptr(pULWInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UpdateLayeredWindowIndirect(
  hWnd: THandle;   // HWND
  pULWInfo: Pointer   // UPDATELAYEREDWINDOWINFO*
): BOOL; stdcall;
  external 'USER32.dll' name 'UpdateLayeredWindowIndirect';

result := DllCall("USER32\UpdateLayeredWindowIndirect"
    , "Ptr", hWnd   ; HWND
    , "Ptr", pULWInfo   ; UPDATELAYEREDWINDOWINFO*
    , "Int")   ; return: BOOL

●UpdateLayeredWindowIndirect(hWnd, pULWInfo) = DLL("USER32.dll", "bool UpdateLayeredWindowIndirect(void*, void*)")
# 呼び出し: UpdateLayeredWindowIndirect(hWnd, pULWInfo)
# hWnd : HWND -> "void*"
# pULWInfo : UPDATELAYEREDWINDOWINFO* -> "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)。