CM_Get_Child

// CFGMGR32.dll
#include <windows.h>

CONFIGRET CM_Get_Child(
    DWORD* pdnDevInst,
    DWORD dnDevInst,
    DWORD ulFlags
);

<DllImport("CFGMGR32.dll", ExactSpelling:=True)>
Public Shared Function CM_Get_Child(
    <Out> ByRef pdnDevInst As UInteger,   ' DWORD* out
    dnDevInst As UInteger,   ' DWORD
    ulFlags As UInteger   ' DWORD
) As UInteger
End Function

' pdnDevInst : DWORD* out
' dnDevInst : DWORD
' ulFlags : DWORD
Declare PtrSafe Function CM_Get_Child Lib "cfgmgr32" ( _
    ByRef pdnDevInst As Long, _
    ByVal dnDevInst As Long, _
    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_Get_Child = ctypes.windll.cfgmgr32.CM_Get_Child
CM_Get_Child.restype = wintypes.DWORD
CM_Get_Child.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pdnDevInst : DWORD* out
    wintypes.DWORD,  # dnDevInst : DWORD
    wintypes.DWORD,  # ulFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CFGMGR32.dll')
CM_Get_Child = Fiddle::Function.new(
  lib['CM_Get_Child'],
  [
    Fiddle::TYPE_VOIDP,  # pdnDevInst : DWORD* out
    -Fiddle::TYPE_INT,  # dnDevInst : DWORD
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "cfgmgr32")]
extern "system" {
    fn CM_Get_Child(
        pdnDevInst: *mut u32,  // DWORD* out
        dnDevInst: u32,  // DWORD
        ulFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CFGMGR32.dll")]
public static extern uint CM_Get_Child(out uint pdnDevInst, uint dnDevInst, uint ulFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CFGMGR32_CM_Get_Child' -Namespace Win32 -PassThru
# $api::CM_Get_Child(pdnDevInst, dnDevInst, ulFlags)

#uselib "CFGMGR32.dll"
#func global CM_Get_Child "CM_Get_Child" sptr, sptr, sptr
; CM_Get_Child varptr(pdnDevInst), dnDevInst, ulFlags   ; 戻り値は stat
; pdnDevInst : DWORD* out -> "sptr"
; dnDevInst : DWORD -> "sptr"
; ulFlags : DWORD -> "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。

#uselib "CFGMGR32.dll"
#cfunc global CM_Get_Child "CM_Get_Child" var, int, int
; res = CM_Get_Child(pdnDevInst, dnDevInst, ulFlags)
; pdnDevInst : DWORD* out -> "var"
; dnDevInst : DWORD -> "int"
; ulFlags : 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。

; CONFIGRET CM_Get_Child(DWORD* pdnDevInst, DWORD dnDevInst, DWORD ulFlags)
#uselib "CFGMGR32.dll"
#cfunc global CM_Get_Child "CM_Get_Child" var, int, int
; res = CM_Get_Child(pdnDevInst, dnDevInst, ulFlags)
; pdnDevInst : DWORD* out -> "var"
; dnDevInst : DWORD -> "int"
; ulFlags : 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 (
	cfgmgr32 = windows.NewLazySystemDLL("CFGMGR32.dll")
	procCM_Get_Child = cfgmgr32.NewProc("CM_Get_Child")
)

// pdnDevInst (DWORD* out), dnDevInst (DWORD), ulFlags (DWORD)
r1, _, err := procCM_Get_Child.Call(
	uintptr(pdnDevInst),
	uintptr(dnDevInst),
	uintptr(ulFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CONFIGRET

function CM_Get_Child(
  pdnDevInst: Pointer;   // DWORD* out
  dnDevInst: DWORD;   // DWORD
  ulFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Get_Child';

result := DllCall("CFGMGR32\CM_Get_Child"
    , "Ptr", pdnDevInst   ; DWORD* out
    , "UInt", dnDevInst   ; DWORD
    , "UInt", ulFlags   ; DWORD
    , "UInt")   ; return: CONFIGRET

●CM_Get_Child(pdnDevInst, dnDevInst, ulFlags) = DLL("CFGMGR32.dll", "dword CM_Get_Child(void*, dword, dword)")
# 呼び出し: CM_Get_Child(pdnDevInst, dnDevInst, ulFlags)
# pdnDevInst : DWORD* out -> "void*"
# dnDevInst : DWORD -> "dword"
# ulFlags : 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)。