Win32 API 日本語リファレンス
ホームSystem.ProcessStatus › GetDeviceDriverFileNameW

GetDeviceDriverFileNameW

関数
デバイスドライバのファイルパスをUnicodeで取得する。
DLLPSAPI.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// PSAPI.dll  (Unicode / -W)
#include <windows.h>

DWORD GetDeviceDriverFileNameW(
    void* ImageBase,
    LPWSTR lpFilename,
    DWORD nSize
);

パラメーター

名前方向
ImageBasevoid*in
lpFilenameLPWSTRout
nSizeDWORDin

戻り値の型: DWORD

各言語での呼び出し定義

// PSAPI.dll  (Unicode / -W)
#include <windows.h>

DWORD GetDeviceDriverFileNameW(
    void* ImageBase,
    LPWSTR lpFilename,
    DWORD nSize
);
[DllImport("PSAPI.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern uint GetDeviceDriverFileNameW(
    IntPtr ImageBase,   // void*
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpFilename,   // LPWSTR out
    uint nSize   // DWORD
);
<DllImport("PSAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetDeviceDriverFileNameW(
    ImageBase As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> lpFilename As System.Text.StringBuilder,   ' LPWSTR out
    nSize As UInteger   ' DWORD
) As UInteger
End Function
' ImageBase : void*
' lpFilename : LPWSTR out
' nSize : DWORD
Declare PtrSafe Function GetDeviceDriverFileNameW Lib "psapi" ( _
    ByVal ImageBase As LongPtr, _
    ByVal lpFilename As LongPtr, _
    ByVal nSize As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

GetDeviceDriverFileNameW = ctypes.windll.psapi.GetDeviceDriverFileNameW
GetDeviceDriverFileNameW.restype = wintypes.DWORD
GetDeviceDriverFileNameW.argtypes = [
    ctypes.POINTER(None),  # ImageBase : void*
    wintypes.LPWSTR,  # lpFilename : LPWSTR out
    wintypes.DWORD,  # nSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PSAPI.dll')
GetDeviceDriverFileNameW = Fiddle::Function.new(
  lib['GetDeviceDriverFileNameW'],
  [
    Fiddle::TYPE_VOIDP,  # ImageBase : void*
    Fiddle::TYPE_VOIDP,  # lpFilename : LPWSTR out
    -Fiddle::TYPE_INT,  # nSize : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"
#[link(name = "psapi")]
extern "system" {
    fn GetDeviceDriverFileNameW(
        ImageBase: *mut (),  // void*
        lpFilename: *mut u16,  // LPWSTR out
        nSize: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("PSAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint GetDeviceDriverFileNameW(IntPtr ImageBase, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpFilename, uint nSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PSAPI_GetDeviceDriverFileNameW' -Namespace Win32 -PassThru
# $api::GetDeviceDriverFileNameW(ImageBase, lpFilename, nSize)
#uselib "PSAPI.dll"
#func global GetDeviceDriverFileNameW "GetDeviceDriverFileNameW" wptr, wptr, wptr
; GetDeviceDriverFileNameW ImageBase, varptr(lpFilename), nSize   ; 戻り値は stat
; ImageBase : void* -> "wptr"
; lpFilename : LPWSTR out -> "wptr"
; nSize : DWORD -> "wptr"
; ※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 "PSAPI.dll"
#cfunc global GetDeviceDriverFileNameW "GetDeviceDriverFileNameW" sptr, var, int
; res = GetDeviceDriverFileNameW(ImageBase, lpFilename, nSize)
; ImageBase : void* -> "sptr"
; lpFilename : LPWSTR out -> "var"
; nSize : DWORD -> "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。
出力引数:
; DWORD GetDeviceDriverFileNameW(void* ImageBase, LPWSTR lpFilename, DWORD nSize)
#uselib "PSAPI.dll"
#cfunc global GetDeviceDriverFileNameW "GetDeviceDriverFileNameW" intptr, var, int
; res = GetDeviceDriverFileNameW(ImageBase, lpFilename, nSize)
; ImageBase : void* -> "intptr"
; lpFilename : LPWSTR out -> "var"
; nSize : DWORD -> "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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	psapi = windows.NewLazySystemDLL("PSAPI.dll")
	procGetDeviceDriverFileNameW = psapi.NewProc("GetDeviceDriverFileNameW")
)

// ImageBase (void*), lpFilename (LPWSTR out), nSize (DWORD)
r1, _, err := procGetDeviceDriverFileNameW.Call(
	uintptr(ImageBase),
	uintptr(lpFilename),
	uintptr(nSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD
function GetDeviceDriverFileNameW(
  ImageBase: Pointer;   // void*
  lpFilename: PWideChar;   // LPWSTR out
  nSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'PSAPI.dll' name 'GetDeviceDriverFileNameW';
result := DllCall("PSAPI\GetDeviceDriverFileNameW"
    , "Ptr", ImageBase   ; void*
    , "Ptr", lpFilename   ; LPWSTR out
    , "UInt", nSize   ; DWORD
    , "UInt")   ; return: DWORD
●GetDeviceDriverFileNameW(ImageBase, lpFilename, nSize) = DLL("PSAPI.dll", "dword GetDeviceDriverFileNameW(void*, char*, dword)")
# 呼び出し: GetDeviceDriverFileNameW(ImageBase, lpFilename, nSize)
# ImageBase : void* -> "void*"
# lpFilename : LPWSTR out -> "char*"
# nSize : DWORD -> "dword"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。