EnumerateLoadedModulesExW

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

BOOL EnumerateLoadedModulesExW(
    HANDLE hProcess,
    PENUMLOADED_MODULES_CALLBACKW64 EnumLoadedModulesCallback,
    void* UserContext   // optional
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EnumerateLoadedModulesExW(
    hProcess As IntPtr,   ' HANDLE
    EnumLoadedModulesCallback As IntPtr,   ' PENUMLOADED_MODULES_CALLBACKW64
    UserContext As IntPtr   ' void* optional
) As Boolean
End Function

' hProcess : HANDLE
' EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64
' UserContext : void* optional
Declare PtrSafe Function EnumerateLoadedModulesExW Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal EnumLoadedModulesCallback As LongPtr, _
    ByVal UserContext As LongPtr) 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

EnumerateLoadedModulesExW = ctypes.windll.dbghelp.EnumerateLoadedModulesExW
EnumerateLoadedModulesExW.restype = wintypes.BOOL
EnumerateLoadedModulesExW.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.c_void_p,  # EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64
    ctypes.POINTER(None),  # UserContext : void* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
EnumerateLoadedModulesExW = Fiddle::Function.new(
  lib['EnumerateLoadedModulesExW'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64
    Fiddle::TYPE_VOIDP,  # UserContext : void* optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn EnumerateLoadedModulesExW(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        EnumLoadedModulesCallback: *const core::ffi::c_void,  // PENUMLOADED_MODULES_CALLBACKW64
        UserContext: *mut ()  // void* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("dbghelp.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool EnumerateLoadedModulesExW(IntPtr hProcess, IntPtr EnumLoadedModulesCallback, IntPtr UserContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_EnumerateLoadedModulesExW' -Namespace Win32 -PassThru
# $api::EnumerateLoadedModulesExW(hProcess, EnumLoadedModulesCallback, UserContext)

#uselib "dbghelp.dll"
#func global EnumerateLoadedModulesExW "EnumerateLoadedModulesExW" wptr, wptr, wptr
; EnumerateLoadedModulesExW hProcess, EnumLoadedModulesCallback, UserContext   ; 戻り値は stat
; hProcess : HANDLE -> "wptr"
; EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64 -> "wptr"
; UserContext : void* optional -> "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 "dbghelp.dll"
#cfunc global EnumerateLoadedModulesExW "EnumerateLoadedModulesExW" sptr, sptr, sptr
; res = EnumerateLoadedModulesExW(hProcess, EnumLoadedModulesCallback, UserContext)
; hProcess : HANDLE -> "sptr"
; EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64 -> "sptr"
; UserContext : void* optional -> "sptr"

; BOOL EnumerateLoadedModulesExW(HANDLE hProcess, PENUMLOADED_MODULES_CALLBACKW64 EnumLoadedModulesCallback, void* UserContext)
#uselib "dbghelp.dll"
#cfunc global EnumerateLoadedModulesExW "EnumerateLoadedModulesExW" intptr, intptr, intptr
; res = EnumerateLoadedModulesExW(hProcess, EnumLoadedModulesCallback, UserContext)
; hProcess : HANDLE -> "intptr"
; EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64 -> "intptr"
; UserContext : void* optional -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procEnumerateLoadedModulesExW = dbghelp.NewProc("EnumerateLoadedModulesExW")
)

// hProcess (HANDLE), EnumLoadedModulesCallback (PENUMLOADED_MODULES_CALLBACKW64), UserContext (void* optional)
r1, _, err := procEnumerateLoadedModulesExW.Call(
	uintptr(hProcess),
	uintptr(EnumLoadedModulesCallback),
	uintptr(UserContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EnumerateLoadedModulesExW(
  hProcess: THandle;   // HANDLE
  EnumLoadedModulesCallback: Pointer;   // PENUMLOADED_MODULES_CALLBACKW64
  UserContext: Pointer   // void* optional
): BOOL; stdcall;
  external 'dbghelp.dll' name 'EnumerateLoadedModulesExW';

result := DllCall("dbghelp\EnumerateLoadedModulesExW"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", EnumLoadedModulesCallback   ; PENUMLOADED_MODULES_CALLBACKW64
    , "Ptr", UserContext   ; void* optional
    , "Int")   ; return: BOOL

●EnumerateLoadedModulesExW(hProcess, EnumLoadedModulesCallback, UserContext) = DLL("dbghelp.dll", "bool EnumerateLoadedModulesExW(void*, void*, void*)")
# 呼び出し: EnumerateLoadedModulesExW(hProcess, EnumLoadedModulesCallback, UserContext)
# hProcess : HANDLE -> "void*"
# EnumLoadedModulesCallback : PENUMLOADED_MODULES_CALLBACKW64 -> "void*"
# UserContext : void* optional -> "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。