Win32 API 日本語リファレンス
ホームDevices.DeviceAndDriverInstallation › SetupDiGetINFClassA

SetupDiGetINFClassA

関数
INFファイルからセットアップクラスのGUIDと名前を取得する。
DLLSETUPAPI.dll文字セットANSI (-A)呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降

シグネチャ

// SETUPAPI.dll  (ANSI / -A)
#include <windows.h>

BOOL SetupDiGetINFClassA(
    LPCSTR InfName,
    GUID* ClassGuid,
    LPSTR ClassName,
    DWORD ClassNameSize,
    DWORD* RequiredSize   // optional
);

パラメーター

名前方向説明
InfNameLPCSTRinクラス情報を取得する対象INFファイルのパス(ANSI)。
ClassGuidGUID*outINFのVersionセクションから取得したセットアップクラスGUIDを受け取るポインタ。
ClassNameLPSTRoutクラス名を受け取るバッファ(ANSI)。
ClassNameSizeDWORDinClassNameバッファの文字数。終端NUL含む。
RequiredSizeDWORD*outoptionalクラス名に必要な文字数を受け取るポインタ。不足判定に使う。NULL可。

戻り値の型: BOOL

各言語での呼び出し定義

// SETUPAPI.dll  (ANSI / -A)
#include <windows.h>

BOOL SetupDiGetINFClassA(
    LPCSTR InfName,
    GUID* ClassGuid,
    LPSTR ClassName,
    DWORD ClassNameSize,
    DWORD* RequiredSize   // optional
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
static extern bool SetupDiGetINFClassA(
    [MarshalAs(UnmanagedType.LPStr)] string InfName,   // LPCSTR
    out Guid ClassGuid,   // GUID* out
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder ClassName,   // LPSTR out
    uint ClassNameSize,   // DWORD
    IntPtr RequiredSize   // DWORD* optional, out
);
<DllImport("SETUPAPI.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupDiGetINFClassA(
    <MarshalAs(UnmanagedType.LPStr)> InfName As String,   ' LPCSTR
    <Out> ByRef ClassGuid As Guid,   ' GUID* out
    <MarshalAs(UnmanagedType.LPStr)> ClassName As System.Text.StringBuilder,   ' LPSTR out
    ClassNameSize As UInteger,   ' DWORD
    RequiredSize As IntPtr   ' DWORD* optional, out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
' InfName : LPCSTR
' ClassGuid : GUID* out
' ClassName : LPSTR out
' ClassNameSize : DWORD
' RequiredSize : DWORD* optional, out
Declare PtrSafe Function SetupDiGetINFClassA Lib "setupapi" ( _
    ByVal InfName As String, _
    ByVal ClassGuid As LongPtr, _
    ByVal ClassName As String, _
    ByVal ClassNameSize As Long, _
    ByVal RequiredSize 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

SetupDiGetINFClassA = ctypes.windll.setupapi.SetupDiGetINFClassA
SetupDiGetINFClassA.restype = wintypes.BOOL
SetupDiGetINFClassA.argtypes = [
    wintypes.LPCSTR,  # InfName : LPCSTR
    ctypes.c_void_p,  # ClassGuid : GUID* out
    wintypes.LPSTR,  # ClassName : LPSTR out
    wintypes.DWORD,  # ClassNameSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # RequiredSize : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupDiGetINFClassA = Fiddle::Function.new(
  lib['SetupDiGetINFClassA'],
  [
    Fiddle::TYPE_VOIDP,  # InfName : LPCSTR
    Fiddle::TYPE_VOIDP,  # ClassGuid : GUID* out
    Fiddle::TYPE_VOIDP,  # ClassName : LPSTR out
    -Fiddle::TYPE_INT,  # ClassNameSize : DWORD
    Fiddle::TYPE_VOIDP,  # RequiredSize : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
#[link(name = "setupapi")]
extern "system" {
    fn SetupDiGetINFClassA(
        InfName: *const u8,  // LPCSTR
        ClassGuid: *mut GUID,  // GUID* out
        ClassName: *mut u8,  // LPSTR out
        ClassNameSize: u32,  // DWORD
        RequiredSize: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool SetupDiGetINFClassA([MarshalAs(UnmanagedType.LPStr)] string InfName, out Guid ClassGuid, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder ClassName, uint ClassNameSize, IntPtr RequiredSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupDiGetINFClassA' -Namespace Win32 -PassThru
# $api::SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
#uselib "SETUPAPI.dll"
#func global SetupDiGetINFClassA "SetupDiGetINFClassA" sptr, sptr, sptr, sptr, sptr
; SetupDiGetINFClassA InfName, varptr(ClassGuid), varptr(ClassName), ClassNameSize, varptr(RequiredSize)   ; 戻り値は stat
; InfName : LPCSTR -> "sptr"
; ClassGuid : GUID* out -> "sptr"
; ClassName : LPSTR out -> "sptr"
; ClassNameSize : DWORD -> "sptr"
; RequiredSize : DWORD* 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 "SETUPAPI.dll"
#cfunc global SetupDiGetINFClassA "SetupDiGetINFClassA" str, var, var, int, var
; res = SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
; InfName : LPCSTR -> "str"
; ClassGuid : GUID* out -> "var"
; ClassName : LPSTR out -> "var"
; ClassNameSize : DWORD -> "int"
; RequiredSize : DWORD* 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。
出力引数:
; BOOL SetupDiGetINFClassA(LPCSTR InfName, GUID* ClassGuid, LPSTR ClassName, DWORD ClassNameSize, DWORD* RequiredSize)
#uselib "SETUPAPI.dll"
#cfunc global SetupDiGetINFClassA "SetupDiGetINFClassA" str, var, var, int, var
; res = SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
; InfName : LPCSTR -> "str"
; ClassGuid : GUID* out -> "var"
; ClassName : LPSTR out -> "var"
; ClassNameSize : DWORD -> "int"
; RequiredSize : DWORD* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupDiGetINFClassA = setupapi.NewProc("SetupDiGetINFClassA")
)

// InfName (LPCSTR), ClassGuid (GUID* out), ClassName (LPSTR out), ClassNameSize (DWORD), RequiredSize (DWORD* optional, out)
r1, _, err := procSetupDiGetINFClassA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(InfName))),
	uintptr(ClassGuid),
	uintptr(ClassName),
	uintptr(ClassNameSize),
	uintptr(RequiredSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function SetupDiGetINFClassA(
  InfName: PAnsiChar;   // LPCSTR
  ClassGuid: PGUID;   // GUID* out
  ClassName: PAnsiChar;   // LPSTR out
  ClassNameSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupDiGetINFClassA';
result := DllCall("SETUPAPI\SetupDiGetINFClassA"
    , "AStr", InfName   ; LPCSTR
    , "Ptr", ClassGuid   ; GUID* out
    , "Ptr", ClassName   ; LPSTR out
    , "UInt", ClassNameSize   ; DWORD
    , "Ptr", RequiredSize   ; DWORD* optional, out
    , "Int")   ; return: BOOL
●SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize) = DLL("SETUPAPI.dll", "bool SetupDiGetINFClassA(char*, void*, char*, dword, void*)")
# 呼び出し: SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
# InfName : LPCSTR -> "char*"
# ClassGuid : GUID* out -> "void*"
# ClassName : LPSTR out -> "char*"
# ClassNameSize : DWORD -> "dword"
# RequiredSize : DWORD* 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)。
const std = @import("std");

extern "setupapi" fn SetupDiGetINFClassA(
    InfName: [*c]const u8, // LPCSTR
    ClassGuid: [*c]GUID, // GUID* out
    ClassName: [*c]u8, // LPSTR out
    ClassNameSize: u32, // DWORD
    RequiredSize: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
proc SetupDiGetINFClassA(
    InfName: cstring,  # LPCSTR
    ClassGuid: ptr GUID,  # GUID* out
    ClassName: ptr char,  # LPSTR out
    ClassNameSize: uint32,  # DWORD
    RequiredSize: ptr uint32  # DWORD* optional, out
): int32 {.importc: "SetupDiGetINFClassA", stdcall, dynlib: "SETUPAPI.dll".}
pragma(lib, "setupapi");
extern(Windows)
int SetupDiGetINFClassA(
    const(char)* InfName,   // LPCSTR
    GUID* ClassGuid,   // GUID* out
    char* ClassName,   // LPSTR out
    uint ClassNameSize,   // DWORD
    uint* RequiredSize   // DWORD* optional, out
);
ccall((:SetupDiGetINFClassA, "SETUPAPI.dll"), stdcall, Int32,
      (Cstring, Ptr{GUID}, Ptr{UInt8}, UInt32, Ptr{UInt32}),
      InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
# InfName : LPCSTR -> Cstring
# ClassGuid : GUID* out -> Ptr{GUID}
# ClassName : LPSTR out -> Ptr{UInt8}
# ClassNameSize : DWORD -> UInt32
# RequiredSize : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t SetupDiGetINFClassA(
    const char* InfName,
    void* ClassGuid,
    char* ClassName,
    uint32_t ClassNameSize,
    uint32_t* RequiredSize);
]]
local setupapi = ffi.load("setupapi")
-- setupapi.SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
-- InfName : LPCSTR
-- ClassGuid : GUID* out
-- ClassName : LPSTR out
-- ClassNameSize : DWORD
-- RequiredSize : DWORD* optional, out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('SETUPAPI.dll');
const SetupDiGetINFClassA = lib.func('__stdcall', 'SetupDiGetINFClassA', 'int32_t', ['str', 'void *', 'char *', 'uint32_t', 'uint32_t *']);
// SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
// InfName : LPCSTR -> 'str'
// ClassGuid : GUID* out -> 'void *'
// ClassName : LPSTR out -> 'char *'
// ClassNameSize : DWORD -> 'uint32_t'
// RequiredSize : DWORD* optional, out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("SETUPAPI.dll", {
  SetupDiGetINFClassA: { parameters: ["buffer", "pointer", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
// InfName : LPCSTR -> "buffer"
// ClassGuid : GUID* out -> "pointer"
// ClassName : LPSTR out -> "buffer"
// ClassNameSize : DWORD -> "u32"
// RequiredSize : DWORD* optional, out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t SetupDiGetINFClassA(
    const char* InfName,
    void* ClassGuid,
    char* ClassName,
    uint32_t ClassNameSize,
    uint32_t* RequiredSize);
C, "SETUPAPI.dll");
// $ffi->SetupDiGetINFClassA(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize);
// InfName : LPCSTR
// ClassGuid : GUID* out
// ClassName : LPSTR out
// ClassNameSize : DWORD
// RequiredSize : DWORD* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Setupapi extends StdCallLibrary {
    Setupapi INSTANCE = Native.load("setupapi", Setupapi.class, W32APIOptions.ASCII_OPTIONS);
    boolean SetupDiGetINFClassA(
        String InfName,   // LPCSTR
        Pointer ClassGuid,   // GUID* out
        byte[] ClassName,   // LPSTR out
        int ClassNameSize,   // DWORD
        IntByReference RequiredSize   // DWORD* optional, out
    );
}
@[Link("setupapi")]
lib LibSETUPAPI
  fun SetupDiGetINFClassA = SetupDiGetINFClassA(
    InfName : UInt8*,   # LPCSTR
    ClassGuid : GUID*,   # GUID* out
    ClassName : UInt8*,   # LPSTR out
    ClassNameSize : UInt32,   # DWORD
    RequiredSize : UInt32*   # DWORD* optional, out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SetupDiGetINFClassANative = Int32 Function(Pointer<Utf8>, Pointer<Void>, Pointer<Utf8>, Uint32, Pointer<Uint32>);
typedef SetupDiGetINFClassADart = int Function(Pointer<Utf8>, Pointer<Void>, Pointer<Utf8>, int, Pointer<Uint32>);
final SetupDiGetINFClassA = DynamicLibrary.open('SETUPAPI.dll')
    .lookupFunction<SetupDiGetINFClassANative, SetupDiGetINFClassADart>('SetupDiGetINFClassA');
// InfName : LPCSTR -> Pointer<Utf8>
// ClassGuid : GUID* out -> Pointer<Void>
// ClassName : LPSTR out -> Pointer<Utf8>
// ClassNameSize : DWORD -> Uint32
// RequiredSize : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function SetupDiGetINFClassA(
  InfName: PAnsiChar;   // LPCSTR
  ClassGuid: PGUID;   // GUID* out
  ClassName: PAnsiChar;   // LPSTR out
  ClassNameSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupDiGetINFClassA';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SetupDiGetINFClassA"
  c_SetupDiGetINFClassA :: CString -> Ptr () -> CString -> Word32 -> Ptr Word32 -> IO CInt
-- InfName : LPCSTR -> CString
-- ClassGuid : GUID* out -> Ptr ()
-- ClassName : LPSTR out -> CString
-- ClassNameSize : DWORD -> Word32
-- RequiredSize : DWORD* optional, out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let setupdigetinfclassa =
  foreign "SetupDiGetINFClassA"
    (string @-> (ptr void) @-> string @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* InfName : LPCSTR -> string *)
(* ClassGuid : GUID* out -> (ptr void) *)
(* ClassName : LPSTR out -> string *)
(* ClassNameSize : DWORD -> uint32_t *)
(* RequiredSize : DWORD* optional, out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library setupapi (t "SETUPAPI.dll"))
(cffi:use-foreign-library setupapi)

(cffi:defcfun ("SetupDiGetINFClassA" setup-di-get-infclass-a :convention :stdcall) :int32
  (inf-name :string)   ; LPCSTR
  (class-guid :pointer)   ; GUID* out
  (class-name :pointer)   ; LPSTR out
  (class-name-size :uint32)   ; DWORD
  (required-size :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $SetupDiGetINFClassA = Win32::API::More->new('SETUPAPI',
    'BOOL SetupDiGetINFClassA(LPCSTR InfName, LPVOID ClassGuid, LPSTR ClassName, DWORD ClassNameSize, LPVOID RequiredSize)');
# my $ret = $SetupDiGetINFClassA->Call($InfName, $ClassGuid, $ClassName, $ClassNameSize, $RequiredSize);
# InfName : LPCSTR -> LPCSTR
# ClassGuid : GUID* out -> LPVOID
# ClassName : LPSTR out -> LPSTR
# ClassNameSize : DWORD -> DWORD
# RequiredSize : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

関連項目

文字セット違い