ホーム › Devices.Display › QueryDisplayConfig

QueryDisplayConfig

関数

ディスプレイのパスとモードの現在構成を取得する。

DLLUSER32.dll呼出規約winapi対応OSWindows 7 以降

シグネチャ

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

WIN32_ERROR QueryDisplayConfig(
    QUERY_DISPLAY_CONFIG_FLAGS flags,
    DWORD* numPathArrayElements,
    DISPLAYCONFIG_PATH_INFO* pathArray,
    DWORD* numModeInfoArrayElements,
    DISPLAYCONFIG_MODE_INFO* modeInfoArray,
    DISPLAYCONFIG_TOPOLOGY_ID* currentTopologyId   // optional
);

パラメーター

名前	型	方向
flags	QUERY_DISPLAY_CONFIG_FLAGS	in
numPathArrayElements	DWORD*	inout
pathArray	DISPLAYCONFIG_PATH_INFO*	out
numModeInfoArrayElements	DWORD*	inout
modeInfoArray	DISPLAYCONFIG_MODE_INFO*	out
currentTopologyId	DISPLAYCONFIG_TOPOLOGY_ID*	inoutoptional

戻り値の型: WIN32_ERROR

各言語での呼び出し定義

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

WIN32_ERROR QueryDisplayConfig(
    QUERY_DISPLAY_CONFIG_FLAGS flags,
    DWORD* numPathArrayElements,
    DISPLAYCONFIG_PATH_INFO* pathArray,
    DWORD* numModeInfoArrayElements,
    DISPLAYCONFIG_MODE_INFO* modeInfoArray,
    DISPLAYCONFIG_TOPOLOGY_ID* currentTopologyId   // optional
);

[DllImport("USER32.dll", ExactSpelling = true)]
static extern uint QueryDisplayConfig(
    uint flags,   // QUERY_DISPLAY_CONFIG_FLAGS
    ref uint numPathArrayElements,   // DWORD* in/out
    IntPtr pathArray,   // DISPLAYCONFIG_PATH_INFO* out
    ref uint numModeInfoArrayElements,   // DWORD* in/out
    IntPtr modeInfoArray,   // DISPLAYCONFIG_MODE_INFO* out
    IntPtr currentTopologyId   // DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function QueryDisplayConfig(
    flags As UInteger,   ' QUERY_DISPLAY_CONFIG_FLAGS
    ByRef numPathArrayElements As UInteger,   ' DWORD* in/out
    pathArray As IntPtr,   ' DISPLAYCONFIG_PATH_INFO* out
    ByRef numModeInfoArrayElements As UInteger,   ' DWORD* in/out
    modeInfoArray As IntPtr,   ' DISPLAYCONFIG_MODE_INFO* out
    currentTopologyId As IntPtr   ' DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
) As UInteger
End Function

' flags : QUERY_DISPLAY_CONFIG_FLAGS
' numPathArrayElements : DWORD* in/out
' pathArray : DISPLAYCONFIG_PATH_INFO* out
' numModeInfoArrayElements : DWORD* in/out
' modeInfoArray : DISPLAYCONFIG_MODE_INFO* out
' currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
Declare PtrSafe Function QueryDisplayConfig Lib "user32" ( _
    ByVal flags As Long, _
    ByRef numPathArrayElements As Long, _
    ByVal pathArray As LongPtr, _
    ByRef numModeInfoArrayElements As Long, _
    ByVal modeInfoArray As LongPtr, _
    ByVal currentTopologyId 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

QueryDisplayConfig = ctypes.windll.user32.QueryDisplayConfig
QueryDisplayConfig.restype = wintypes.DWORD
QueryDisplayConfig.argtypes = [
    wintypes.DWORD,  # flags : QUERY_DISPLAY_CONFIG_FLAGS
    ctypes.POINTER(wintypes.DWORD),  # numPathArrayElements : DWORD* in/out
    ctypes.c_void_p,  # pathArray : DISPLAYCONFIG_PATH_INFO* out
    ctypes.POINTER(wintypes.DWORD),  # numModeInfoArrayElements : DWORD* in/out
    ctypes.c_void_p,  # modeInfoArray : DISPLAYCONFIG_MODE_INFO* out
    ctypes.c_void_p,  # currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
QueryDisplayConfig = Fiddle::Function.new(
  lib['QueryDisplayConfig'],
  [
    -Fiddle::TYPE_INT,  # flags : QUERY_DISPLAY_CONFIG_FLAGS
    Fiddle::TYPE_VOIDP,  # numPathArrayElements : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pathArray : DISPLAYCONFIG_PATH_INFO* out
    Fiddle::TYPE_VOIDP,  # numModeInfoArrayElements : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # modeInfoArray : DISPLAYCONFIG_MODE_INFO* out
    Fiddle::TYPE_VOIDP,  # currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn QueryDisplayConfig(
        flags: u32,  // QUERY_DISPLAY_CONFIG_FLAGS
        numPathArrayElements: *mut u32,  // DWORD* in/out
        pathArray: *mut DISPLAYCONFIG_PATH_INFO,  // DISPLAYCONFIG_PATH_INFO* out
        numModeInfoArrayElements: *mut u32,  // DWORD* in/out
        modeInfoArray: *mut DISPLAYCONFIG_MODE_INFO,  // DISPLAYCONFIG_MODE_INFO* out
        currentTopologyId: *mut i32  // DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern uint QueryDisplayConfig(uint flags, ref uint numPathArrayElements, IntPtr pathArray, ref uint numModeInfoArrayElements, IntPtr modeInfoArray, IntPtr currentTopologyId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_QueryDisplayConfig' -Namespace Win32 -PassThru
# $api::QueryDisplayConfig(flags, numPathArrayElements, pathArray, numModeInfoArrayElements, modeInfoArray, currentTopologyId)

#uselib "USER32.dll"
#func global QueryDisplayConfig "QueryDisplayConfig" sptr, sptr, sptr, sptr, sptr, sptr
; QueryDisplayConfig flags, varptr(numPathArrayElements), varptr(pathArray), varptr(numModeInfoArrayElements), varptr(modeInfoArray), currentTopologyId   ; 戻り値は stat
; flags : QUERY_DISPLAY_CONFIG_FLAGS -> "sptr"
; numPathArrayElements : DWORD* in/out -> "sptr"
; pathArray : DISPLAYCONFIG_PATH_INFO* out -> "sptr"
; numModeInfoArrayElements : DWORD* in/out -> "sptr"
; modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "sptr"
; currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, 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 QueryDisplayConfig "QueryDisplayConfig" int, var, var, var, var, int
; res = QueryDisplayConfig(flags, numPathArrayElements, pathArray, numModeInfoArrayElements, modeInfoArray, currentTopologyId)
; flags : QUERY_DISPLAY_CONFIG_FLAGS -> "int"
; numPathArrayElements : DWORD* in/out -> "var"
; pathArray : DISPLAYCONFIG_PATH_INFO* out -> "var"
; numModeInfoArrayElements : DWORD* in/out -> "var"
; modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "var"
; currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out -> "int"
; ※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 QueryDisplayConfig "QueryDisplayConfig" int, sptr, sptr, sptr, sptr, int
; res = QueryDisplayConfig(flags, varptr(numPathArrayElements), varptr(pathArray), varptr(numModeInfoArrayElements), varptr(modeInfoArray), currentTopologyId)
; flags : QUERY_DISPLAY_CONFIG_FLAGS -> "int"
; numPathArrayElements : DWORD* in/out -> "sptr"
; pathArray : DISPLAYCONFIG_PATH_INFO* out -> "sptr"
; numModeInfoArrayElements : DWORD* in/out -> "sptr"
; modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "sptr"
; currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out -> "int"
; ※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:

; WIN32_ERROR QueryDisplayConfig(QUERY_DISPLAY_CONFIG_FLAGS flags, DWORD* numPathArrayElements, DISPLAYCONFIG_PATH_INFO* pathArray, DWORD* numModeInfoArrayElements, DISPLAYCONFIG_MODE_INFO* modeInfoArray, DISPLAYCONFIG_TOPOLOGY_ID* currentTopologyId)
#uselib "USER32.dll"
#cfunc global QueryDisplayConfig "QueryDisplayConfig" int, var, var, var, var, int
; res = QueryDisplayConfig(flags, numPathArrayElements, pathArray, numModeInfoArrayElements, modeInfoArray, currentTopologyId)
; flags : QUERY_DISPLAY_CONFIG_FLAGS -> "int"
; numPathArrayElements : DWORD* in/out -> "var"
; pathArray : DISPLAYCONFIG_PATH_INFO* out -> "var"
; numModeInfoArrayElements : DWORD* in/out -> "var"
; modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "var"
; currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out -> "int"
; ※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。; WIN32_ERROR QueryDisplayConfig(QUERY_DISPLAY_CONFIG_FLAGS flags, DWORD* numPathArrayElements, DISPLAYCONFIG_PATH_INFO* pathArray, DWORD* numModeInfoArrayElements, DISPLAYCONFIG_MODE_INFO* modeInfoArray, DISPLAYCONFIG_TOPOLOGY_ID* currentTopologyId)
#uselib "USER32.dll"
#cfunc global QueryDisplayConfig "QueryDisplayConfig" int, intptr, intptr, intptr, intptr, int
; res = QueryDisplayConfig(flags, varptr(numPathArrayElements), varptr(pathArray), varptr(numModeInfoArrayElements), varptr(modeInfoArray), currentTopologyId)
; flags : QUERY_DISPLAY_CONFIG_FLAGS -> "int"
; numPathArrayElements : DWORD* in/out -> "intptr"
; pathArray : DISPLAYCONFIG_PATH_INFO* out -> "intptr"
; numModeInfoArrayElements : DWORD* in/out -> "intptr"
; modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "intptr"
; currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out -> "int"
; ※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")
	procQueryDisplayConfig = user32.NewProc("QueryDisplayConfig")
)

// flags (QUERY_DISPLAY_CONFIG_FLAGS), numPathArrayElements (DWORD* in/out), pathArray (DISPLAYCONFIG_PATH_INFO* out), numModeInfoArrayElements (DWORD* in/out), modeInfoArray (DISPLAYCONFIG_MODE_INFO* out), currentTopologyId (DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out)
r1, _, err := procQueryDisplayConfig.Call(
	uintptr(flags),
	uintptr(numPathArrayElements),
	uintptr(pathArray),
	uintptr(numModeInfoArrayElements),
	uintptr(modeInfoArray),
	uintptr(currentTopologyId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function QueryDisplayConfig(
  flags: DWORD;   // QUERY_DISPLAY_CONFIG_FLAGS
  numPathArrayElements: Pointer;   // DWORD* in/out
  pathArray: Pointer;   // DISPLAYCONFIG_PATH_INFO* out
  numModeInfoArrayElements: Pointer;   // DWORD* in/out
  modeInfoArray: Pointer;   // DISPLAYCONFIG_MODE_INFO* out
  currentTopologyId: Pointer   // DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
): DWORD; stdcall;
  external 'USER32.dll' name 'QueryDisplayConfig';

result := DllCall("USER32\QueryDisplayConfig"
    , "UInt", flags   ; QUERY_DISPLAY_CONFIG_FLAGS
    , "Ptr", numPathArrayElements   ; DWORD* in/out
    , "Ptr", pathArray   ; DISPLAYCONFIG_PATH_INFO* out
    , "Ptr", numModeInfoArrayElements   ; DWORD* in/out
    , "Ptr", modeInfoArray   ; DISPLAYCONFIG_MODE_INFO* out
    , "Ptr", currentTopologyId   ; DISPLAYCONFIG_TOPOLOGY_ID* optional, in/out
    , "UInt")   ; return: WIN32_ERROR

●QueryDisplayConfig(flags, numPathArrayElements, pathArray, numModeInfoArrayElements, modeInfoArray, currentTopologyId) = DLL("USER32.dll", "dword QueryDisplayConfig(dword, void*, void*, void*, void*, void*)")
# 呼び出し: QueryDisplayConfig(flags, numPathArrayElements, pathArray, numModeInfoArrayElements, modeInfoArray, currentTopologyId)
# flags : QUERY_DISPLAY_CONFIG_FLAGS -> "dword"
# numPathArrayElements : DWORD* in/out -> "void*"
# pathArray : DISPLAYCONFIG_PATH_INFO* out -> "void*"
# numModeInfoArrayElements : DWORD* in/out -> "void*"
# modeInfoArray : DISPLAYCONFIG_MODE_INFO* out -> "void*"
# currentTopologyId : DISPLAYCONFIG_TOPOLOGY_ID* optional, 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)。