MagGetFullscreenColorEffect

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

BOOL MagGetFullscreenColorEffect(
    MAGCOLOREFFECT* pEffect
);

<DllImport("MAGNIFICATION.dll", ExactSpelling:=True)>
Public Shared Function MagGetFullscreenColorEffect(
    pEffect As IntPtr   ' MAGCOLOREFFECT* out
) As Boolean
End Function

' pEffect : MAGCOLOREFFECT* out
Declare PtrSafe Function MagGetFullscreenColorEffect Lib "magnification" ( _
    ByVal pEffect 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

MagGetFullscreenColorEffect = ctypes.windll.magnification.MagGetFullscreenColorEffect
MagGetFullscreenColorEffect.restype = wintypes.BOOL
MagGetFullscreenColorEffect.argtypes = [
    ctypes.c_void_p,  # pEffect : MAGCOLOREFFECT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAGNIFICATION.dll')
MagGetFullscreenColorEffect = Fiddle::Function.new(
  lib['MagGetFullscreenColorEffect'],
  [
    Fiddle::TYPE_VOIDP,  # pEffect : MAGCOLOREFFECT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "magnification")]
extern "system" {
    fn MagGetFullscreenColorEffect(
        pEffect: *mut MAGCOLOREFFECT  // MAGCOLOREFFECT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "MAGNIFICATION.dll"
#func global MagGetFullscreenColorEffect "MagGetFullscreenColorEffect" sptr
; MagGetFullscreenColorEffect varptr(pEffect)   ; 戻り値は stat
; pEffect : MAGCOLOREFFECT* out -> "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 "MAGNIFICATION.dll"
#cfunc global MagGetFullscreenColorEffect "MagGetFullscreenColorEffect" var
; res = MagGetFullscreenColorEffect(pEffect)
; pEffect : MAGCOLOREFFECT* out -> "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 MagGetFullscreenColorEffect(MAGCOLOREFFECT* pEffect)
#uselib "MAGNIFICATION.dll"
#cfunc global MagGetFullscreenColorEffect "MagGetFullscreenColorEffect" var
; res = MagGetFullscreenColorEffect(pEffect)
; pEffect : MAGCOLOREFFECT* out -> "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。

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

var (
	magnification = windows.NewLazySystemDLL("MAGNIFICATION.dll")
	procMagGetFullscreenColorEffect = magnification.NewProc("MagGetFullscreenColorEffect")
)

// pEffect (MAGCOLOREFFECT* out)
r1, _, err := procMagGetFullscreenColorEffect.Call(
	uintptr(pEffect),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function MagGetFullscreenColorEffect(
  pEffect: Pointer   // MAGCOLOREFFECT* out
): BOOL; stdcall;
  external 'MAGNIFICATION.dll' name 'MagGetFullscreenColorEffect';

result := DllCall("MAGNIFICATION\MagGetFullscreenColorEffect"
    , "Ptr", pEffect   ; MAGCOLOREFFECT* out
    , "Int")   ; return: BOOL

●MagGetFullscreenColorEffect(pEffect) = DLL("MAGNIFICATION.dll", "bool MagGetFullscreenColorEffect(void*)")
# 呼び出し: MagGetFullscreenColorEffect(pEffect)
# pEffect : MAGCOLOREFFECT* out -> "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)。