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CM_Locate_DevNodeA

関数
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DLLCFGMGR32.dll文字セットANSI (-A)呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// CFGMGR32.dll  (ANSI / -A)
#include <windows.h>

CONFIGRET CM_Locate_DevNodeA(
    DWORD* pdnDevInst,
    LPSTR pDeviceID,   // optional
    CM_LOCATE_DEVNODE_FLAGS ulFlags
);

パラメーター

名前方向
pdnDevInstDWORD*out
pDeviceIDLPSTRinoptional
ulFlagsCM_LOCATE_DEVNODE_FLAGSin

戻り値の型: CONFIGRET

各言語での呼び出し定義

// CFGMGR32.dll  (ANSI / -A)
#include <windows.h>

CONFIGRET CM_Locate_DevNodeA(
    DWORD* pdnDevInst,
    LPSTR pDeviceID,   // optional
    CM_LOCATE_DEVNODE_FLAGS ulFlags
);
[DllImport("CFGMGR32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern uint CM_Locate_DevNodeA(
    out uint pdnDevInst,   // DWORD* out
    [MarshalAs(UnmanagedType.LPStr)] string pDeviceID,   // LPSTR optional
    uint ulFlags   // CM_LOCATE_DEVNODE_FLAGS
);
<DllImport("CFGMGR32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function CM_Locate_DevNodeA(
    <Out> ByRef pdnDevInst As UInteger,   ' DWORD* out
    <MarshalAs(UnmanagedType.LPStr)> pDeviceID As String,   ' LPSTR optional
    ulFlags As UInteger   ' CM_LOCATE_DEVNODE_FLAGS
) As UInteger
End Function
' pdnDevInst : DWORD* out
' pDeviceID : LPSTR optional
' ulFlags : CM_LOCATE_DEVNODE_FLAGS
Declare PtrSafe Function CM_Locate_DevNodeA Lib "cfgmgr32" ( _
    ByRef pdnDevInst As Long, _
    ByVal pDeviceID As String, _
    ByVal ulFlags 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

CM_Locate_DevNodeA = ctypes.windll.cfgmgr32.CM_Locate_DevNodeA
CM_Locate_DevNodeA.restype = wintypes.DWORD
CM_Locate_DevNodeA.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pdnDevInst : DWORD* out
    wintypes.LPCSTR,  # pDeviceID : LPSTR optional
    wintypes.DWORD,  # ulFlags : CM_LOCATE_DEVNODE_FLAGS
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CFGMGR32.dll')
CM_Locate_DevNodeA = Fiddle::Function.new(
  lib['CM_Locate_DevNodeA'],
  [
    Fiddle::TYPE_VOIDP,  # pdnDevInst : DWORD* out
    Fiddle::TYPE_VOIDP,  # pDeviceID : LPSTR optional
    -Fiddle::TYPE_INT,  # ulFlags : CM_LOCATE_DEVNODE_FLAGS
  ],
  -Fiddle::TYPE_INT)
#[link(name = "cfgmgr32")]
extern "system" {
    fn CM_Locate_DevNodeA(
        pdnDevInst: *mut u32,  // DWORD* out
        pDeviceID: *mut u8,  // LPSTR optional
        ulFlags: u32  // CM_LOCATE_DEVNODE_FLAGS
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("CFGMGR32.dll", CharSet = CharSet.Ansi)]
public static extern uint CM_Locate_DevNodeA(out uint pdnDevInst, [MarshalAs(UnmanagedType.LPStr)] string pDeviceID, uint ulFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CFGMGR32_CM_Locate_DevNodeA' -Namespace Win32 -PassThru
# $api::CM_Locate_DevNodeA(pdnDevInst, pDeviceID, ulFlags)
#uselib "CFGMGR32.dll"
#func global CM_Locate_DevNodeA "CM_Locate_DevNodeA" sptr, sptr, sptr
; CM_Locate_DevNodeA varptr(pdnDevInst), pDeviceID, ulFlags   ; 戻り値は stat
; pdnDevInst : DWORD* out -> "sptr"
; pDeviceID : LPSTR optional -> "sptr"
; ulFlags : CM_LOCATE_DEVNODE_FLAGS -> "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 "CFGMGR32.dll"
#cfunc global CM_Locate_DevNodeA "CM_Locate_DevNodeA" var, str, int
; res = CM_Locate_DevNodeA(pdnDevInst, pDeviceID, ulFlags)
; pdnDevInst : DWORD* out -> "var"
; pDeviceID : LPSTR optional -> "str"
; ulFlags : CM_LOCATE_DEVNODE_FLAGS -> "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:
; CONFIGRET CM_Locate_DevNodeA(DWORD* pdnDevInst, LPSTR pDeviceID, CM_LOCATE_DEVNODE_FLAGS ulFlags)
#uselib "CFGMGR32.dll"
#cfunc global CM_Locate_DevNodeA "CM_Locate_DevNodeA" var, str, int
; res = CM_Locate_DevNodeA(pdnDevInst, pDeviceID, ulFlags)
; pdnDevInst : DWORD* out -> "var"
; pDeviceID : LPSTR optional -> "str"
; ulFlags : CM_LOCATE_DEVNODE_FLAGS -> "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 (
	cfgmgr32 = windows.NewLazySystemDLL("CFGMGR32.dll")
	procCM_Locate_DevNodeA = cfgmgr32.NewProc("CM_Locate_DevNodeA")
)

// pdnDevInst (DWORD* out), pDeviceID (LPSTR optional), ulFlags (CM_LOCATE_DEVNODE_FLAGS)
r1, _, err := procCM_Locate_DevNodeA.Call(
	uintptr(pdnDevInst),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pDeviceID))),
	uintptr(ulFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CONFIGRET
function CM_Locate_DevNodeA(
  pdnDevInst: Pointer;   // DWORD* out
  pDeviceID: PAnsiChar;   // LPSTR optional
  ulFlags: DWORD   // CM_LOCATE_DEVNODE_FLAGS
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Locate_DevNodeA';
result := DllCall("CFGMGR32\CM_Locate_DevNodeA"
    , "Ptr", pdnDevInst   ; DWORD* out
    , "AStr", pDeviceID   ; LPSTR optional
    , "UInt", ulFlags   ; CM_LOCATE_DEVNODE_FLAGS
    , "UInt")   ; return: CONFIGRET
●CM_Locate_DevNodeA(pdnDevInst, pDeviceID, ulFlags) = DLL("CFGMGR32.dll", "dword CM_Locate_DevNodeA(void*, char*, dword)")
# 呼び出し: CM_Locate_DevNodeA(pdnDevInst, pDeviceID, ulFlags)
# pdnDevInst : DWORD* out -> "void*"
# pDeviceID : LPSTR optional -> "char*"
# ulFlags : CM_LOCATE_DEVNODE_FLAGS -> "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)。