ホーム › Devices.Display › DisplayConfigGetDeviceInfo

DisplayConfigGetDeviceInfo

関数

ディスプレイ構成のデバイス情報を取得する。

DLLUSER32.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

INT DisplayConfigGetDeviceInfo(
    DISPLAYCONFIG_DEVICE_INFO_HEADER* requestPacket
);

パラメーター

名前	型	方向
requestPacket	DISPLAYCONFIG_DEVICE_INFO_HEADER*	inout

戻り値の型: INT

各言語での呼び出し定義

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

INT DisplayConfigGetDeviceInfo(
    DISPLAYCONFIG_DEVICE_INFO_HEADER* requestPacket
);

[DllImport("USER32.dll", ExactSpelling = true)]
static extern int DisplayConfigGetDeviceInfo(
    IntPtr requestPacket   // DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function DisplayConfigGetDeviceInfo(
    requestPacket As IntPtr   ' DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
) As Integer
End Function

' requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
Declare PtrSafe Function DisplayConfigGetDeviceInfo Lib "user32" ( _
    ByVal requestPacket 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

DisplayConfigGetDeviceInfo = ctypes.windll.user32.DisplayConfigGetDeviceInfo
DisplayConfigGetDeviceInfo.restype = ctypes.c_int
DisplayConfigGetDeviceInfo.argtypes = [
    ctypes.c_void_p,  # requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
DisplayConfigGetDeviceInfo = Fiddle::Function.new(
  lib['DisplayConfigGetDeviceInfo'],
  [
    Fiddle::TYPE_VOIDP,  # requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn DisplayConfigGetDeviceInfo(
        requestPacket: *mut DISPLAYCONFIG_DEVICE_INFO_HEADER  // DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern int DisplayConfigGetDeviceInfo(IntPtr requestPacket);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_DisplayConfigGetDeviceInfo' -Namespace Win32 -PassThru
# $api::DisplayConfigGetDeviceInfo(requestPacket)

#uselib "USER32.dll"
#func global DisplayConfigGetDeviceInfo "DisplayConfigGetDeviceInfo" sptr
; DisplayConfigGetDeviceInfo varptr(requestPacket)   ; 戻り値は stat
; requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/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。

出力引数:

#uselib "USER32.dll"
#cfunc global DisplayConfigGetDeviceInfo "DisplayConfigGetDeviceInfo" var
; res = DisplayConfigGetDeviceInfo(requestPacket)
; requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/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。#uselib "USER32.dll"
#cfunc global DisplayConfigGetDeviceInfo "DisplayConfigGetDeviceInfo" sptr
; res = DisplayConfigGetDeviceInfo(varptr(requestPacket))
; requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out -> "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:

; INT DisplayConfigGetDeviceInfo(DISPLAYCONFIG_DEVICE_INFO_HEADER* requestPacket)
#uselib "USER32.dll"
#cfunc global DisplayConfigGetDeviceInfo "DisplayConfigGetDeviceInfo" var
; res = DisplayConfigGetDeviceInfo(requestPacket)
; requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/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。; INT DisplayConfigGetDeviceInfo(DISPLAYCONFIG_DEVICE_INFO_HEADER* requestPacket)
#uselib "USER32.dll"
#cfunc global DisplayConfigGetDeviceInfo "DisplayConfigGetDeviceInfo" intptr
; res = DisplayConfigGetDeviceInfo(varptr(requestPacket))
; requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out -> "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")
	procDisplayConfigGetDeviceInfo = user32.NewProc("DisplayConfigGetDeviceInfo")
)

// requestPacket (DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out)
r1, _, err := procDisplayConfigGetDeviceInfo.Call(
	uintptr(requestPacket),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function DisplayConfigGetDeviceInfo(
  requestPacket: Pointer   // DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
): Integer; stdcall;
  external 'USER32.dll' name 'DisplayConfigGetDeviceInfo';

result := DllCall("USER32\DisplayConfigGetDeviceInfo"
    , "Ptr", requestPacket   ; DISPLAYCONFIG_DEVICE_INFO_HEADER* in/out
    , "Int")   ; return: INT

●DisplayConfigGetDeviceInfo(requestPacket) = DLL("USER32.dll", "int DisplayConfigGetDeviceInfo(void*)")
# 呼び出し: DisplayConfigGetDeviceInfo(requestPacket)
# requestPacket : DISPLAYCONFIG_DEVICE_INFO_HEADER* in/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)。