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QueryActCtxSettingsW

関数

アクティベーションコンテキストのアプリ設定値を問い合わせて取得する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL QueryActCtxSettingsW(
    DWORD dwFlags,   // optional
    HANDLE hActCtx,   // optional
    LPCWSTR settingsNameSpace,   // optional
    LPCWSTR settingName,
    LPWSTR pvBuffer,   // optional
    UINT_PTR dwBuffer,
    UINT_PTR* pdwWrittenOrRequired   // optional
);

パラメーター

名前	型	方向
dwFlags	DWORD	inoptional
hActCtx	HANDLE	inoptional
settingsNameSpace	LPCWSTR	inoptional
settingName	LPCWSTR	in
pvBuffer	LPWSTR	outoptional
dwBuffer	UINT_PTR	in
pdwWrittenOrRequired	UINT_PTR*	outoptional

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL QueryActCtxSettingsW(
    DWORD dwFlags,   // optional
    HANDLE hActCtx,   // optional
    LPCWSTR settingsNameSpace,   // optional
    LPCWSTR settingName,
    LPWSTR pvBuffer,   // optional
    UINT_PTR dwBuffer,
    UINT_PTR* pdwWrittenOrRequired   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool QueryActCtxSettingsW(
    uint dwFlags,   // DWORD optional
    IntPtr hActCtx,   // HANDLE optional
    [MarshalAs(UnmanagedType.LPWStr)] string settingsNameSpace,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string settingName,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pvBuffer,   // LPWSTR optional, out
    UIntPtr dwBuffer,   // UINT_PTR
    IntPtr pdwWrittenOrRequired   // UINT_PTR* optional, out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function QueryActCtxSettingsW(
    dwFlags As UInteger,   ' DWORD optional
    hActCtx As IntPtr,   ' HANDLE optional
    <MarshalAs(UnmanagedType.LPWStr)> settingsNameSpace As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> settingName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pvBuffer As System.Text.StringBuilder,   ' LPWSTR optional, out
    dwBuffer As UIntPtr,   ' UINT_PTR
    pdwWrittenOrRequired As IntPtr   ' UINT_PTR* optional, out
) As Boolean
End Function

' dwFlags : DWORD optional
' hActCtx : HANDLE optional
' settingsNameSpace : LPCWSTR optional
' settingName : LPCWSTR
' pvBuffer : LPWSTR optional, out
' dwBuffer : UINT_PTR
' pdwWrittenOrRequired : UINT_PTR* optional, out
Declare PtrSafe Function QueryActCtxSettingsW Lib "kernel32" ( _
    ByVal dwFlags As Long, _
    ByVal hActCtx As LongPtr, _
    ByVal settingsNameSpace As LongPtr, _
    ByVal settingName As LongPtr, _
    ByVal pvBuffer As LongPtr, _
    ByVal dwBuffer As LongPtr, _
    ByVal pdwWrittenOrRequired 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

QueryActCtxSettingsW = ctypes.windll.kernel32.QueryActCtxSettingsW
QueryActCtxSettingsW.restype = wintypes.BOOL
QueryActCtxSettingsW.argtypes = [
    wintypes.DWORD,  # dwFlags : DWORD optional
    wintypes.HANDLE,  # hActCtx : HANDLE optional
    wintypes.LPCWSTR,  # settingsNameSpace : LPCWSTR optional
    wintypes.LPCWSTR,  # settingName : LPCWSTR
    wintypes.LPWSTR,  # pvBuffer : LPWSTR optional, out
    ctypes.c_size_t,  # dwBuffer : UINT_PTR
    ctypes.POINTER(ctypes.c_size_t),  # pdwWrittenOrRequired : UINT_PTR* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
QueryActCtxSettingsW = Fiddle::Function.new(
  lib['QueryActCtxSettingsW'],
  [
    -Fiddle::TYPE_INT,  # dwFlags : DWORD optional
    Fiddle::TYPE_VOIDP,  # hActCtx : HANDLE optional
    Fiddle::TYPE_VOIDP,  # settingsNameSpace : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # settingName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pvBuffer : LPWSTR optional, out
    Fiddle::TYPE_UINTPTR_T,  # dwBuffer : UINT_PTR
    Fiddle::TYPE_VOIDP,  # pdwWrittenOrRequired : UINT_PTR* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn QueryActCtxSettingsW(
        dwFlags: u32,  // DWORD optional
        hActCtx: *mut core::ffi::c_void,  // HANDLE optional
        settingsNameSpace: *const u16,  // LPCWSTR optional
        settingName: *const u16,  // LPCWSTR
        pvBuffer: *mut u16,  // LPWSTR optional, out
        dwBuffer: usize,  // UINT_PTR
        pdwWrittenOrRequired: *mut usize  // UINT_PTR* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool QueryActCtxSettingsW(uint dwFlags, IntPtr hActCtx, [MarshalAs(UnmanagedType.LPWStr)] string settingsNameSpace, [MarshalAs(UnmanagedType.LPWStr)] string settingName, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pvBuffer, UIntPtr dwBuffer, IntPtr pdwWrittenOrRequired);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_QueryActCtxSettingsW' -Namespace Win32 -PassThru
# $api::QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, pvBuffer, dwBuffer, pdwWrittenOrRequired)

#uselib "KERNEL32.dll"
#func global QueryActCtxSettingsW "QueryActCtxSettingsW" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; QueryActCtxSettingsW dwFlags, hActCtx, settingsNameSpace, settingName, varptr(pvBuffer), dwBuffer, varptr(pdwWrittenOrRequired)   ; 戻り値は stat
; dwFlags : DWORD optional -> "sptr"
; hActCtx : HANDLE optional -> "sptr"
; settingsNameSpace : LPCWSTR optional -> "sptr"
; settingName : LPCWSTR -> "sptr"
; pvBuffer : LPWSTR optional, out -> "sptr"
; dwBuffer : UINT_PTR -> "sptr"
; pdwWrittenOrRequired : UINT_PTR* optional, 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 "KERNEL32.dll"
#cfunc global QueryActCtxSettingsW "QueryActCtxSettingsW" int, sptr, wstr, wstr, var, sptr, var
; res = QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, pvBuffer, dwBuffer, pdwWrittenOrRequired)
; dwFlags : DWORD optional -> "int"
; hActCtx : HANDLE optional -> "sptr"
; settingsNameSpace : LPCWSTR optional -> "wstr"
; settingName : LPCWSTR -> "wstr"
; pvBuffer : LPWSTR optional, out -> "var"
; dwBuffer : UINT_PTR -> "sptr"
; pdwWrittenOrRequired : UINT_PTR* optional, 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 "KERNEL32.dll"
#cfunc global QueryActCtxSettingsW "QueryActCtxSettingsW" int, sptr, wstr, wstr, sptr, sptr, sptr
; res = QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, varptr(pvBuffer), dwBuffer, varptr(pdwWrittenOrRequired))
; dwFlags : DWORD optional -> "int"
; hActCtx : HANDLE optional -> "sptr"
; settingsNameSpace : LPCWSTR optional -> "wstr"
; settingName : LPCWSTR -> "wstr"
; pvBuffer : LPWSTR optional, out -> "sptr"
; dwBuffer : UINT_PTR -> "sptr"
; pdwWrittenOrRequired : UINT_PTR* optional, 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:

; BOOL QueryActCtxSettingsW(DWORD dwFlags, HANDLE hActCtx, LPCWSTR settingsNameSpace, LPCWSTR settingName, LPWSTR pvBuffer, UINT_PTR dwBuffer, UINT_PTR* pdwWrittenOrRequired)
#uselib "KERNEL32.dll"
#cfunc global QueryActCtxSettingsW "QueryActCtxSettingsW" int, intptr, wstr, wstr, var, intptr, var
; res = QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, pvBuffer, dwBuffer, pdwWrittenOrRequired)
; dwFlags : DWORD optional -> "int"
; hActCtx : HANDLE optional -> "intptr"
; settingsNameSpace : LPCWSTR optional -> "wstr"
; settingName : LPCWSTR -> "wstr"
; pvBuffer : LPWSTR optional, out -> "var"
; dwBuffer : UINT_PTR -> "intptr"
; pdwWrittenOrRequired : UINT_PTR* optional, 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。; BOOL QueryActCtxSettingsW(DWORD dwFlags, HANDLE hActCtx, LPCWSTR settingsNameSpace, LPCWSTR settingName, LPWSTR pvBuffer, UINT_PTR dwBuffer, UINT_PTR* pdwWrittenOrRequired)
#uselib "KERNEL32.dll"
#cfunc global QueryActCtxSettingsW "QueryActCtxSettingsW" int, intptr, wstr, wstr, intptr, intptr, intptr
; res = QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, varptr(pvBuffer), dwBuffer, varptr(pdwWrittenOrRequired))
; dwFlags : DWORD optional -> "int"
; hActCtx : HANDLE optional -> "intptr"
; settingsNameSpace : LPCWSTR optional -> "wstr"
; settingName : LPCWSTR -> "wstr"
; pvBuffer : LPWSTR optional, out -> "intptr"
; dwBuffer : UINT_PTR -> "intptr"
; pdwWrittenOrRequired : UINT_PTR* optional, 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procQueryActCtxSettingsW = kernel32.NewProc("QueryActCtxSettingsW")
)

// dwFlags (DWORD optional), hActCtx (HANDLE optional), settingsNameSpace (LPCWSTR optional), settingName (LPCWSTR), pvBuffer (LPWSTR optional, out), dwBuffer (UINT_PTR), pdwWrittenOrRequired (UINT_PTR* optional, out)
r1, _, err := procQueryActCtxSettingsW.Call(
	uintptr(dwFlags),
	uintptr(hActCtx),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(settingsNameSpace))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(settingName))),
	uintptr(pvBuffer),
	uintptr(dwBuffer),
	uintptr(pdwWrittenOrRequired),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function QueryActCtxSettingsW(
  dwFlags: DWORD;   // DWORD optional
  hActCtx: THandle;   // HANDLE optional
  settingsNameSpace: PWideChar;   // LPCWSTR optional
  settingName: PWideChar;   // LPCWSTR
  pvBuffer: PWideChar;   // LPWSTR optional, out
  dwBuffer: NativeUInt;   // UINT_PTR
  pdwWrittenOrRequired: Pointer   // UINT_PTR* optional, out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'QueryActCtxSettingsW';

result := DllCall("KERNEL32\QueryActCtxSettingsW"
    , "UInt", dwFlags   ; DWORD optional
    , "Ptr", hActCtx   ; HANDLE optional
    , "WStr", settingsNameSpace   ; LPCWSTR optional
    , "WStr", settingName   ; LPCWSTR
    , "Ptr", pvBuffer   ; LPWSTR optional, out
    , "UPtr", dwBuffer   ; UINT_PTR
    , "Ptr", pdwWrittenOrRequired   ; UINT_PTR* optional, out
    , "Int")   ; return: BOOL

●QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, pvBuffer, dwBuffer, pdwWrittenOrRequired) = DLL("KERNEL32.dll", "bool QueryActCtxSettingsW(dword, void*, char*, char*, char*, int, void*)")
# 呼び出し: QueryActCtxSettingsW(dwFlags, hActCtx, settingsNameSpace, settingName, pvBuffer, dwBuffer, pdwWrittenOrRequired)
# dwFlags : DWORD optional -> "dword"
# hActCtx : HANDLE optional -> "void*"
# settingsNameSpace : LPCWSTR optional -> "char*"
# settingName : LPCWSTR -> "char*"
# pvBuffer : LPWSTR optional, out -> "char*"
# dwBuffer : UINT_PTR -> "int"
# pdwWrittenOrRequired : UINT_PTR* optional, 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)。