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SetupGetIntField

関数

INF行の指定フィールドの整数値を取得する。

DLLSETUPAPI.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

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

BOOL SetupGetIntField(
    INFCONTEXT* Context,
    DWORD FieldIndex,
    INT* IntegerValue
);

パラメーター

名前	型	方向	説明
Context	INFCONTEXT*	in	対象行を示すINFCONTEXT構造体へのポインタ。
FieldIndex	DWORD	in	整数として取得するフィールドのインデックス(0起点)。
IntegerValue	INT*	out	解析した整数値を受け取る出力ポインタ。

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL SetupGetIntField(
    INFCONTEXT* Context,
    DWORD FieldIndex,
    INT* IntegerValue
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", SetLastError = true, ExactSpelling = true)]
static extern bool SetupGetIntField(
    IntPtr Context,   // INFCONTEXT*
    uint FieldIndex,   // DWORD
    out int IntegerValue   // INT* out
);

<DllImport("SETUPAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupGetIntField(
    Context As IntPtr,   ' INFCONTEXT*
    FieldIndex As UInteger,   ' DWORD
    <Out> ByRef IntegerValue As Integer   ' INT* out
) As Boolean
End Function

' Context : INFCONTEXT*
' FieldIndex : DWORD
' IntegerValue : INT* out
Declare PtrSafe Function SetupGetIntField Lib "setupapi" ( _
    ByVal Context As LongPtr, _
    ByVal FieldIndex As Long, _
    ByRef IntegerValue 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

SetupGetIntField = ctypes.windll.setupapi.SetupGetIntField
SetupGetIntField.restype = wintypes.BOOL
SetupGetIntField.argtypes = [
    ctypes.c_void_p,  # Context : INFCONTEXT*
    wintypes.DWORD,  # FieldIndex : DWORD
    ctypes.POINTER(ctypes.c_int),  # IntegerValue : INT* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupGetIntField = Fiddle::Function.new(
  lib['SetupGetIntField'],
  [
    Fiddle::TYPE_VOIDP,  # Context : INFCONTEXT*
    -Fiddle::TYPE_INT,  # FieldIndex : DWORD
    Fiddle::TYPE_VOIDP,  # IntegerValue : INT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "setupapi")]
extern "system" {
    fn SetupGetIntField(
        Context: *mut INFCONTEXT,  // INFCONTEXT*
        FieldIndex: u32,  // DWORD
        IntegerValue: *mut i32  // INT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", SetLastError = true)]
public static extern bool SetupGetIntField(IntPtr Context, uint FieldIndex, out int IntegerValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupGetIntField' -Namespace Win32 -PassThru
# $api::SetupGetIntField(Context, FieldIndex, IntegerValue)

#uselib "SETUPAPI.dll"
#func global SetupGetIntField "SetupGetIntField" sptr, sptr, sptr
; SetupGetIntField varptr(Context), FieldIndex, varptr(IntegerValue)   ; 戻り値は stat
; Context : INFCONTEXT* -> "sptr"
; FieldIndex : DWORD -> "sptr"
; IntegerValue : INT* 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 "SETUPAPI.dll"
#cfunc global SetupGetIntField "SetupGetIntField" var, int, var
; res = SetupGetIntField(Context, FieldIndex, IntegerValue)
; Context : INFCONTEXT* -> "var"
; FieldIndex : DWORD -> "int"
; IntegerValue : INT* 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 "SETUPAPI.dll"
#cfunc global SetupGetIntField "SetupGetIntField" sptr, int, sptr
; res = SetupGetIntField(varptr(Context), FieldIndex, varptr(IntegerValue))
; Context : INFCONTEXT* -> "sptr"
; FieldIndex : DWORD -> "int"
; IntegerValue : INT* 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 SetupGetIntField(INFCONTEXT* Context, DWORD FieldIndex, INT* IntegerValue)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetIntField "SetupGetIntField" var, int, var
; res = SetupGetIntField(Context, FieldIndex, IntegerValue)
; Context : INFCONTEXT* -> "var"
; FieldIndex : DWORD -> "int"
; IntegerValue : INT* 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 SetupGetIntField(INFCONTEXT* Context, DWORD FieldIndex, INT* IntegerValue)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetIntField "SetupGetIntField" intptr, int, intptr
; res = SetupGetIntField(varptr(Context), FieldIndex, varptr(IntegerValue))
; Context : INFCONTEXT* -> "intptr"
; FieldIndex : DWORD -> "int"
; IntegerValue : INT* 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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupGetIntField = setupapi.NewProc("SetupGetIntField")
)

// Context (INFCONTEXT*), FieldIndex (DWORD), IntegerValue (INT* out)
r1, _, err := procSetupGetIntField.Call(
	uintptr(Context),
	uintptr(FieldIndex),
	uintptr(IntegerValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupGetIntField(
  Context: Pointer;   // INFCONTEXT*
  FieldIndex: DWORD;   // DWORD
  IntegerValue: Pointer   // INT* out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupGetIntField';

result := DllCall("SETUPAPI\SetupGetIntField"
    , "Ptr", Context   ; INFCONTEXT*
    , "UInt", FieldIndex   ; DWORD
    , "Ptr", IntegerValue   ; INT* out
    , "Int")   ; return: BOOL

●SetupGetIntField(Context, FieldIndex, IntegerValue) = DLL("SETUPAPI.dll", "bool SetupGetIntField(void*, dword, void*)")
# 呼び出し: SetupGetIntField(Context, FieldIndex, IntegerValue)
# Context : INFCONTEXT* -> "void*"
# FieldIndex : DWORD -> "dword"
# IntegerValue : INT* 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)。