GetDpiFromDpiAwarenessContext

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

DWORD GetDpiFromDpiAwarenessContext(
    DPI_AWARENESS_CONTEXT value
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function GetDpiFromDpiAwarenessContext(
    value As IntPtr   ' DPI_AWARENESS_CONTEXT
) As UInteger
End Function

' value : DPI_AWARENESS_CONTEXT
Declare PtrSafe Function GetDpiFromDpiAwarenessContext Lib "user32" ( _
    ByVal value 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

GetDpiFromDpiAwarenessContext = ctypes.windll.user32.GetDpiFromDpiAwarenessContext
GetDpiFromDpiAwarenessContext.restype = wintypes.DWORD
GetDpiFromDpiAwarenessContext.argtypes = [
    wintypes.HANDLE,  # value : DPI_AWARENESS_CONTEXT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetDpiFromDpiAwarenessContext = Fiddle::Function.new(
  lib['GetDpiFromDpiAwarenessContext'],
  [
    Fiddle::TYPE_VOIDP,  # value : DPI_AWARENESS_CONTEXT
  ],
  -Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetDpiFromDpiAwarenessContext(
        value: *mut core::ffi::c_void  // DPI_AWARENESS_CONTEXT
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern uint GetDpiFromDpiAwarenessContext(IntPtr value);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetDpiFromDpiAwarenessContext' -Namespace Win32 -PassThru
# $api::GetDpiFromDpiAwarenessContext(value)

#uselib "USER32.dll"
#func global GetDpiFromDpiAwarenessContext "GetDpiFromDpiAwarenessContext" sptr
; GetDpiFromDpiAwarenessContext value   ; 戻り値は stat
; value : DPI_AWARENESS_CONTEXT -> "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 "USER32.dll"
#cfunc global GetDpiFromDpiAwarenessContext "GetDpiFromDpiAwarenessContext" sptr
; res = GetDpiFromDpiAwarenessContext(value)
; value : DPI_AWARENESS_CONTEXT -> "sptr"

; DWORD GetDpiFromDpiAwarenessContext(DPI_AWARENESS_CONTEXT value)
#uselib "USER32.dll"
#cfunc global GetDpiFromDpiAwarenessContext "GetDpiFromDpiAwarenessContext" intptr
; res = GetDpiFromDpiAwarenessContext(value)
; value : DPI_AWARENESS_CONTEXT -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetDpiFromDpiAwarenessContext = user32.NewProc("GetDpiFromDpiAwarenessContext")
)

// value (DPI_AWARENESS_CONTEXT)
r1, _, err := procGetDpiFromDpiAwarenessContext.Call(
	uintptr(value),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetDpiFromDpiAwarenessContext(
  value: THandle   // DPI_AWARENESS_CONTEXT
): DWORD; stdcall;
  external 'USER32.dll' name 'GetDpiFromDpiAwarenessContext';

result := DllCall("USER32\GetDpiFromDpiAwarenessContext"
    , "Ptr", value   ; DPI_AWARENESS_CONTEXT
    , "UInt")   ; return: DWORD

●GetDpiFromDpiAwarenessContext(value) = DLL("USER32.dll", "dword GetDpiFromDpiAwarenessContext(void*)")
# 呼び出し: GetDpiFromDpiAwarenessContext(value)
# value : DPI_AWARENESS_CONTEXT -> "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)。