WNetEnumResourceW

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

WIN32_ERROR WNetEnumResourceW(
    HANDLE hEnum,
    DWORD* lpcCount,
    void* lpBuffer,
    DWORD* lpBufferSize
);

<DllImport("MPR.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function WNetEnumResourceW(
    hEnum As IntPtr,   ' HANDLE
    ByRef lpcCount As UInteger,   ' DWORD* in/out
    lpBuffer As IntPtr,   ' void* out
    ByRef lpBufferSize As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hEnum : HANDLE
' lpcCount : DWORD* in/out
' lpBuffer : void* out
' lpBufferSize : DWORD* in/out
Declare PtrSafe Function WNetEnumResourceW Lib "mpr" ( _
    ByVal hEnum As LongPtr, _
    ByRef lpcCount As Long, _
    ByVal lpBuffer As LongPtr, _
    ByRef lpBufferSize 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

WNetEnumResourceW = ctypes.windll.mpr.WNetEnumResourceW
WNetEnumResourceW.restype = wintypes.DWORD
WNetEnumResourceW.argtypes = [
    wintypes.HANDLE,  # hEnum : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # lpcCount : DWORD* in/out
    ctypes.POINTER(None),  # lpBuffer : void* out
    ctypes.POINTER(wintypes.DWORD),  # lpBufferSize : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MPR.dll')
WNetEnumResourceW = Fiddle::Function.new(
  lib['WNetEnumResourceW'],
  [
    Fiddle::TYPE_VOIDP,  # hEnum : HANDLE
    Fiddle::TYPE_VOIDP,  # lpcCount : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpBuffer : void* out
    Fiddle::TYPE_VOIDP,  # lpBufferSize : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "mpr")]
extern "system" {
    fn WNetEnumResourceW(
        hEnum: *mut core::ffi::c_void,  // HANDLE
        lpcCount: *mut u32,  // DWORD* in/out
        lpBuffer: *mut (),  // void* out
        lpBufferSize: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MPR.dll", CharSet = CharSet.Unicode)]
public static extern uint WNetEnumResourceW(IntPtr hEnum, ref uint lpcCount, IntPtr lpBuffer, ref uint lpBufferSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MPR_WNetEnumResourceW' -Namespace Win32 -PassThru
# $api::WNetEnumResourceW(hEnum, lpcCount, lpBuffer, lpBufferSize)

#uselib "MPR.dll"
#func global WNetEnumResourceW "WNetEnumResourceW" wptr, wptr, wptr, wptr
; WNetEnumResourceW hEnum, varptr(lpcCount), lpBuffer, varptr(lpBufferSize)   ; 戻り値は stat
; hEnum : HANDLE -> "wptr"
; lpcCount : DWORD* in/out -> "wptr"
; lpBuffer : void* out -> "wptr"
; lpBufferSize : DWORD* in/out -> "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。

#uselib "MPR.dll"
#cfunc global WNetEnumResourceW "WNetEnumResourceW" sptr, var, sptr, var
; res = WNetEnumResourceW(hEnum, lpcCount, lpBuffer, lpBufferSize)
; hEnum : HANDLE -> "sptr"
; lpcCount : DWORD* in/out -> "var"
; lpBuffer : void* out -> "sptr"
; lpBufferSize : DWORD* in/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。

; WIN32_ERROR WNetEnumResourceW(HANDLE hEnum, DWORD* lpcCount, void* lpBuffer, DWORD* lpBufferSize)
#uselib "MPR.dll"
#cfunc global WNetEnumResourceW "WNetEnumResourceW" intptr, var, intptr, var
; res = WNetEnumResourceW(hEnum, lpcCount, lpBuffer, lpBufferSize)
; hEnum : HANDLE -> "intptr"
; lpcCount : DWORD* in/out -> "var"
; lpBuffer : void* out -> "intptr"
; lpBufferSize : DWORD* in/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 (
	mpr = windows.NewLazySystemDLL("MPR.dll")
	procWNetEnumResourceW = mpr.NewProc("WNetEnumResourceW")
)

// hEnum (HANDLE), lpcCount (DWORD* in/out), lpBuffer (void* out), lpBufferSize (DWORD* in/out)
r1, _, err := procWNetEnumResourceW.Call(
	uintptr(hEnum),
	uintptr(lpcCount),
	uintptr(lpBuffer),
	uintptr(lpBufferSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function WNetEnumResourceW(
  hEnum: THandle;   // HANDLE
  lpcCount: Pointer;   // DWORD* in/out
  lpBuffer: Pointer;   // void* out
  lpBufferSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetEnumResourceW';

result := DllCall("MPR\WNetEnumResourceW"
    , "Ptr", hEnum   ; HANDLE
    , "Ptr", lpcCount   ; DWORD* in/out
    , "Ptr", lpBuffer   ; void* out
    , "Ptr", lpBufferSize   ; DWORD* in/out
    , "UInt")   ; return: WIN32_ERROR

●WNetEnumResourceW(hEnum, lpcCount, lpBuffer, lpBufferSize) = DLL("MPR.dll", "dword WNetEnumResourceW(void*, void*, void*, void*)")
# 呼び出し: WNetEnumResourceW(hEnum, lpcCount, lpBuffer, lpBufferSize)
# hEnum : HANDLE -> "void*"
# lpcCount : DWORD* in/out -> "void*"
# lpBuffer : void* out -> "void*"
# lpBufferSize : DWORD* in/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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。