GetIntegratedDisplaySize

// api-ms-win-core-sysinfo-l1-2-3.dll
#include <windows.h>

HRESULT GetIntegratedDisplaySize(
    DOUBLE* sizeInInches
);

<DllImport("api-ms-win-core-sysinfo-l1-2-3.dll", ExactSpelling:=True)>
Public Shared Function GetIntegratedDisplaySize(
    <Out> ByRef sizeInInches As Double   ' DOUBLE* out
) As Integer
End Function

' sizeInInches : DOUBLE* out
Declare PtrSafe Function GetIntegratedDisplaySize Lib "api-ms-win-core-sysinfo-l1-2-3" ( _
    ByRef sizeInInches As Double) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetIntegratedDisplaySize = ctypes.windll.LoadLibrary("api-ms-win-core-sysinfo-l1-2-3.dll").GetIntegratedDisplaySize
GetIntegratedDisplaySize.restype = ctypes.c_int
GetIntegratedDisplaySize.argtypes = [
    ctypes.POINTER(ctypes.c_double),  # sizeInInches : DOUBLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-sysinfo-l1-2-3.dll')
GetIntegratedDisplaySize = Fiddle::Function.new(
  lib['GetIntegratedDisplaySize'],
  [
    Fiddle::TYPE_VOIDP,  # sizeInInches : DOUBLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "api-ms-win-core-sysinfo-l1-2-3")]
extern "system" {
    fn GetIntegratedDisplaySize(
        sizeInInches: *mut f64  // DOUBLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("api-ms-win-core-sysinfo-l1-2-3.dll")]
public static extern int GetIntegratedDisplaySize(out double sizeInInches);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-sysinfo-l1-2-3_GetIntegratedDisplaySize' -Namespace Win32 -PassThru
# $api::GetIntegratedDisplaySize(sizeInInches)

#uselib "api-ms-win-core-sysinfo-l1-2-3.dll"
#func global GetIntegratedDisplaySize "GetIntegratedDisplaySize" sptr
; GetIntegratedDisplaySize varptr(sizeInInches)   ; 戻り値は stat
; sizeInInches : DOUBLE* 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 "api-ms-win-core-sysinfo-l1-2-3.dll"
#cfunc global GetIntegratedDisplaySize "GetIntegratedDisplaySize" var
; res = GetIntegratedDisplaySize(sizeInInches)
; sizeInInches : DOUBLE* 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。

; HRESULT GetIntegratedDisplaySize(DOUBLE* sizeInInches)
#uselib "api-ms-win-core-sysinfo-l1-2-3.dll"
#cfunc global GetIntegratedDisplaySize "GetIntegratedDisplaySize" var
; res = GetIntegratedDisplaySize(sizeInInches)
; sizeInInches : DOUBLE* 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 (
	api_ms_win_core_sysinfo_l1_2_3 = windows.NewLazySystemDLL("api-ms-win-core-sysinfo-l1-2-3.dll")
	procGetIntegratedDisplaySize = api_ms_win_core_sysinfo_l1_2_3.NewProc("GetIntegratedDisplaySize")
)

// sizeInInches (DOUBLE* out)
r1, _, err := procGetIntegratedDisplaySize.Call(
	uintptr(sizeInInches),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetIntegratedDisplaySize(
  sizeInInches: Pointer   // DOUBLE* out
): Integer; stdcall;
  external 'api-ms-win-core-sysinfo-l1-2-3.dll' name 'GetIntegratedDisplaySize';

result := DllCall("api-ms-win-core-sysinfo-l1-2-3\GetIntegratedDisplaySize"
    , "Ptr", sizeInInches   ; DOUBLE* out
    , "Int")   ; return: HRESULT

●GetIntegratedDisplaySize(sizeInInches) = DLL("api-ms-win-core-sysinfo-l1-2-3.dll", "int GetIntegratedDisplaySize(void*)")
# 呼び出し: GetIntegratedDisplaySize(sizeInInches)
# sizeInInches : DOUBLE* 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)。