ホーム › Devices.Display › GetMonitorDisplayAreaSize

GetMonitorDisplayAreaSize

関数

モニタの表示領域の幅または高さの値を取得する。

DLLdxva2.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// dxva2.dll
#include <windows.h>

INT GetMonitorDisplayAreaSize(
    HANDLE hMonitor,
    MC_SIZE_TYPE stSizeType,
    DWORD* pdwMinimumWidthOrHeight,
    DWORD* pdwCurrentWidthOrHeight,
    DWORD* pdwMaximumWidthOrHeight
);

パラメーター

名前	型	方向
hMonitor	HANDLE	in
stSizeType	MC_SIZE_TYPE	in
pdwMinimumWidthOrHeight	DWORD*	out
pdwCurrentWidthOrHeight	DWORD*	out
pdwMaximumWidthOrHeight	DWORD*	out

戻り値の型: INT

各言語での呼び出し定義

// dxva2.dll
#include <windows.h>

INT GetMonitorDisplayAreaSize(
    HANDLE hMonitor,
    MC_SIZE_TYPE stSizeType,
    DWORD* pdwMinimumWidthOrHeight,
    DWORD* pdwCurrentWidthOrHeight,
    DWORD* pdwMaximumWidthOrHeight
);

[DllImport("dxva2.dll", SetLastError = true, ExactSpelling = true)]
static extern int GetMonitorDisplayAreaSize(
    IntPtr hMonitor,   // HANDLE
    int stSizeType,   // MC_SIZE_TYPE
    out uint pdwMinimumWidthOrHeight,   // DWORD* out
    out uint pdwCurrentWidthOrHeight,   // DWORD* out
    out uint pdwMaximumWidthOrHeight   // DWORD* out
);

<DllImport("dxva2.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetMonitorDisplayAreaSize(
    hMonitor As IntPtr,   ' HANDLE
    stSizeType As Integer,   ' MC_SIZE_TYPE
    <Out> ByRef pdwMinimumWidthOrHeight As UInteger,   ' DWORD* out
    <Out> ByRef pdwCurrentWidthOrHeight As UInteger,   ' DWORD* out
    <Out> ByRef pdwMaximumWidthOrHeight As UInteger   ' DWORD* out
) As Integer
End Function

' hMonitor : HANDLE
' stSizeType : MC_SIZE_TYPE
' pdwMinimumWidthOrHeight : DWORD* out
' pdwCurrentWidthOrHeight : DWORD* out
' pdwMaximumWidthOrHeight : DWORD* out
Declare PtrSafe Function GetMonitorDisplayAreaSize Lib "dxva2" ( _
    ByVal hMonitor As LongPtr, _
    ByVal stSizeType As Long, _
    ByRef pdwMinimumWidthOrHeight As Long, _
    ByRef pdwCurrentWidthOrHeight As Long, _
    ByRef pdwMaximumWidthOrHeight As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetMonitorDisplayAreaSize = ctypes.windll.dxva2.GetMonitorDisplayAreaSize
GetMonitorDisplayAreaSize.restype = ctypes.c_int
GetMonitorDisplayAreaSize.argtypes = [
    wintypes.HANDLE,  # hMonitor : HANDLE
    ctypes.c_int,  # stSizeType : MC_SIZE_TYPE
    ctypes.POINTER(wintypes.DWORD),  # pdwMinimumWidthOrHeight : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pdwCurrentWidthOrHeight : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pdwMaximumWidthOrHeight : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
GetMonitorDisplayAreaSize = Fiddle::Function.new(
  lib['GetMonitorDisplayAreaSize'],
  [
    Fiddle::TYPE_VOIDP,  # hMonitor : HANDLE
    Fiddle::TYPE_INT,  # stSizeType : MC_SIZE_TYPE
    Fiddle::TYPE_VOIDP,  # pdwMinimumWidthOrHeight : DWORD* out
    Fiddle::TYPE_VOIDP,  # pdwCurrentWidthOrHeight : DWORD* out
    Fiddle::TYPE_VOIDP,  # pdwMaximumWidthOrHeight : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxva2")]
extern "system" {
    fn GetMonitorDisplayAreaSize(
        hMonitor: *mut core::ffi::c_void,  // HANDLE
        stSizeType: i32,  // MC_SIZE_TYPE
        pdwMinimumWidthOrHeight: *mut u32,  // DWORD* out
        pdwCurrentWidthOrHeight: *mut u32,  // DWORD* out
        pdwMaximumWidthOrHeight: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxva2.dll", SetLastError = true)]
public static extern int GetMonitorDisplayAreaSize(IntPtr hMonitor, int stSizeType, out uint pdwMinimumWidthOrHeight, out uint pdwCurrentWidthOrHeight, out uint pdwMaximumWidthOrHeight);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_GetMonitorDisplayAreaSize' -Namespace Win32 -PassThru
# $api::GetMonitorDisplayAreaSize(hMonitor, stSizeType, pdwMinimumWidthOrHeight, pdwCurrentWidthOrHeight, pdwMaximumWidthOrHeight)

#uselib "dxva2.dll"
#func global GetMonitorDisplayAreaSize "GetMonitorDisplayAreaSize" sptr, sptr, sptr, sptr, sptr
; GetMonitorDisplayAreaSize hMonitor, stSizeType, varptr(pdwMinimumWidthOrHeight), varptr(pdwCurrentWidthOrHeight), varptr(pdwMaximumWidthOrHeight)   ; 戻り値は stat
; hMonitor : HANDLE -> "sptr"
; stSizeType : MC_SIZE_TYPE -> "sptr"
; pdwMinimumWidthOrHeight : DWORD* out -> "sptr"
; pdwCurrentWidthOrHeight : DWORD* out -> "sptr"
; pdwMaximumWidthOrHeight : DWORD* 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 "dxva2.dll"
#cfunc global GetMonitorDisplayAreaSize "GetMonitorDisplayAreaSize" sptr, int, var, var, var
; res = GetMonitorDisplayAreaSize(hMonitor, stSizeType, pdwMinimumWidthOrHeight, pdwCurrentWidthOrHeight, pdwMaximumWidthOrHeight)
; hMonitor : HANDLE -> "sptr"
; stSizeType : MC_SIZE_TYPE -> "int"
; pdwMinimumWidthOrHeight : DWORD* out -> "var"
; pdwCurrentWidthOrHeight : DWORD* out -> "var"
; pdwMaximumWidthOrHeight : DWORD* 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 "dxva2.dll"
#cfunc global GetMonitorDisplayAreaSize "GetMonitorDisplayAreaSize" sptr, int, sptr, sptr, sptr
; res = GetMonitorDisplayAreaSize(hMonitor, stSizeType, varptr(pdwMinimumWidthOrHeight), varptr(pdwCurrentWidthOrHeight), varptr(pdwMaximumWidthOrHeight))
; hMonitor : HANDLE -> "sptr"
; stSizeType : MC_SIZE_TYPE -> "int"
; pdwMinimumWidthOrHeight : DWORD* out -> "sptr"
; pdwCurrentWidthOrHeight : DWORD* out -> "sptr"
; pdwMaximumWidthOrHeight : DWORD* 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 GetMonitorDisplayAreaSize(HANDLE hMonitor, MC_SIZE_TYPE stSizeType, DWORD* pdwMinimumWidthOrHeight, DWORD* pdwCurrentWidthOrHeight, DWORD* pdwMaximumWidthOrHeight)
#uselib "dxva2.dll"
#cfunc global GetMonitorDisplayAreaSize "GetMonitorDisplayAreaSize" intptr, int, var, var, var
; res = GetMonitorDisplayAreaSize(hMonitor, stSizeType, pdwMinimumWidthOrHeight, pdwCurrentWidthOrHeight, pdwMaximumWidthOrHeight)
; hMonitor : HANDLE -> "intptr"
; stSizeType : MC_SIZE_TYPE -> "int"
; pdwMinimumWidthOrHeight : DWORD* out -> "var"
; pdwCurrentWidthOrHeight : DWORD* out -> "var"
; pdwMaximumWidthOrHeight : DWORD* 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 GetMonitorDisplayAreaSize(HANDLE hMonitor, MC_SIZE_TYPE stSizeType, DWORD* pdwMinimumWidthOrHeight, DWORD* pdwCurrentWidthOrHeight, DWORD* pdwMaximumWidthOrHeight)
#uselib "dxva2.dll"
#cfunc global GetMonitorDisplayAreaSize "GetMonitorDisplayAreaSize" intptr, int, intptr, intptr, intptr
; res = GetMonitorDisplayAreaSize(hMonitor, stSizeType, varptr(pdwMinimumWidthOrHeight), varptr(pdwCurrentWidthOrHeight), varptr(pdwMaximumWidthOrHeight))
; hMonitor : HANDLE -> "intptr"
; stSizeType : MC_SIZE_TYPE -> "int"
; pdwMinimumWidthOrHeight : DWORD* out -> "intptr"
; pdwCurrentWidthOrHeight : DWORD* out -> "intptr"
; pdwMaximumWidthOrHeight : DWORD* 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 (
	dxva2 = windows.NewLazySystemDLL("dxva2.dll")
	procGetMonitorDisplayAreaSize = dxva2.NewProc("GetMonitorDisplayAreaSize")
)

// hMonitor (HANDLE), stSizeType (MC_SIZE_TYPE), pdwMinimumWidthOrHeight (DWORD* out), pdwCurrentWidthOrHeight (DWORD* out), pdwMaximumWidthOrHeight (DWORD* out)
r1, _, err := procGetMonitorDisplayAreaSize.Call(
	uintptr(hMonitor),
	uintptr(stSizeType),
	uintptr(pdwMinimumWidthOrHeight),
	uintptr(pdwCurrentWidthOrHeight),
	uintptr(pdwMaximumWidthOrHeight),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function GetMonitorDisplayAreaSize(
  hMonitor: THandle;   // HANDLE
  stSizeType: Integer;   // MC_SIZE_TYPE
  pdwMinimumWidthOrHeight: Pointer;   // DWORD* out
  pdwCurrentWidthOrHeight: Pointer;   // DWORD* out
  pdwMaximumWidthOrHeight: Pointer   // DWORD* out
): Integer; stdcall;
  external 'dxva2.dll' name 'GetMonitorDisplayAreaSize';

result := DllCall("dxva2\GetMonitorDisplayAreaSize"
    , "Ptr", hMonitor   ; HANDLE
    , "Int", stSizeType   ; MC_SIZE_TYPE
    , "Ptr", pdwMinimumWidthOrHeight   ; DWORD* out
    , "Ptr", pdwCurrentWidthOrHeight   ; DWORD* out
    , "Ptr", pdwMaximumWidthOrHeight   ; DWORD* out
    , "Int")   ; return: INT

●GetMonitorDisplayAreaSize(hMonitor, stSizeType, pdwMinimumWidthOrHeight, pdwCurrentWidthOrHeight, pdwMaximumWidthOrHeight) = DLL("dxva2.dll", "int GetMonitorDisplayAreaSize(void*, int, void*, void*, void*)")
# 呼び出し: GetMonitorDisplayAreaSize(hMonitor, stSizeType, pdwMinimumWidthOrHeight, pdwCurrentWidthOrHeight, pdwMaximumWidthOrHeight)
# hMonitor : HANDLE -> "void*"
# stSizeType : MC_SIZE_TYPE -> "int"
# pdwMinimumWidthOrHeight : DWORD* out -> "void*"
# pdwCurrentWidthOrHeight : DWORD* out -> "void*"
# pdwMaximumWidthOrHeight : DWORD* 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)。