SymEnumerateSymbolsW

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

BOOL SymEnumerateSymbolsW(
    HANDLE hProcess,
    DWORD BaseOfDll,
    PSYM_ENUMSYMBOLS_CALLBACKW EnumSymbolsCallback,
    void* UserContext   // optional
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SymEnumerateSymbolsW(
    hProcess As IntPtr,   ' HANDLE
    BaseOfDll As UInteger,   ' DWORD
    EnumSymbolsCallback As IntPtr,   ' PSYM_ENUMSYMBOLS_CALLBACKW
    UserContext As IntPtr   ' void* optional
) As Boolean
End Function

' hProcess : HANDLE
' BaseOfDll : DWORD
' EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW
' UserContext : void* optional
Declare PtrSafe Function SymEnumerateSymbolsW Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal BaseOfDll As Long, _
    ByVal EnumSymbolsCallback 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

SymEnumerateSymbolsW = ctypes.windll.dbghelp.SymEnumerateSymbolsW
SymEnumerateSymbolsW.restype = wintypes.BOOL
SymEnumerateSymbolsW.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    wintypes.DWORD,  # BaseOfDll : DWORD
    ctypes.c_void_p,  # EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW
    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')
SymEnumerateSymbolsW = Fiddle::Function.new(
  lib['SymEnumerateSymbolsW'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    -Fiddle::TYPE_INT,  # BaseOfDll : DWORD
    Fiddle::TYPE_VOIDP,  # EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW
    Fiddle::TYPE_VOIDP,  # UserContext : void* optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn SymEnumerateSymbolsW(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        BaseOfDll: u32,  // DWORD
        EnumSymbolsCallback: *const core::ffi::c_void,  // PSYM_ENUMSYMBOLS_CALLBACKW
        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 SymEnumerateSymbolsW(IntPtr hProcess, uint BaseOfDll, IntPtr EnumSymbolsCallback, IntPtr UserContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymEnumerateSymbolsW' -Namespace Win32 -PassThru
# $api::SymEnumerateSymbolsW(hProcess, BaseOfDll, EnumSymbolsCallback, UserContext)

#uselib "dbghelp.dll"
#func global SymEnumerateSymbolsW "SymEnumerateSymbolsW" wptr, wptr, wptr, wptr
; SymEnumerateSymbolsW hProcess, BaseOfDll, EnumSymbolsCallback, UserContext   ; 戻り値は stat
; hProcess : HANDLE -> "wptr"
; BaseOfDll : DWORD -> "wptr"
; EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW -> "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 SymEnumerateSymbolsW "SymEnumerateSymbolsW" sptr, int, sptr, sptr
; res = SymEnumerateSymbolsW(hProcess, BaseOfDll, EnumSymbolsCallback, UserContext)
; hProcess : HANDLE -> "sptr"
; BaseOfDll : DWORD -> "int"
; EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW -> "sptr"
; UserContext : void* optional -> "sptr"

; BOOL SymEnumerateSymbolsW(HANDLE hProcess, DWORD BaseOfDll, PSYM_ENUMSYMBOLS_CALLBACKW EnumSymbolsCallback, void* UserContext)
#uselib "dbghelp.dll"
#cfunc global SymEnumerateSymbolsW "SymEnumerateSymbolsW" intptr, int, intptr, intptr
; res = SymEnumerateSymbolsW(hProcess, BaseOfDll, EnumSymbolsCallback, UserContext)
; hProcess : HANDLE -> "intptr"
; BaseOfDll : DWORD -> "int"
; EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW -> "intptr"
; UserContext : void* optional -> "intptr"

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

var (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procSymEnumerateSymbolsW = dbghelp.NewProc("SymEnumerateSymbolsW")
)

// hProcess (HANDLE), BaseOfDll (DWORD), EnumSymbolsCallback (PSYM_ENUMSYMBOLS_CALLBACKW), UserContext (void* optional)
r1, _, err := procSymEnumerateSymbolsW.Call(
	uintptr(hProcess),
	uintptr(BaseOfDll),
	uintptr(EnumSymbolsCallback),
	uintptr(UserContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymEnumerateSymbolsW(
  hProcess: THandle;   // HANDLE
  BaseOfDll: DWORD;   // DWORD
  EnumSymbolsCallback: Pointer;   // PSYM_ENUMSYMBOLS_CALLBACKW
  UserContext: Pointer   // void* optional
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymEnumerateSymbolsW';

result := DllCall("dbghelp\SymEnumerateSymbolsW"
    , "Ptr", hProcess   ; HANDLE
    , "UInt", BaseOfDll   ; DWORD
    , "Ptr", EnumSymbolsCallback   ; PSYM_ENUMSYMBOLS_CALLBACKW
    , "Ptr", UserContext   ; void* optional
    , "Int")   ; return: BOOL

●SymEnumerateSymbolsW(hProcess, BaseOfDll, EnumSymbolsCallback, UserContext) = DLL("dbghelp.dll", "bool SymEnumerateSymbolsW(void*, dword, void*, void*)")
# 呼び出し: SymEnumerateSymbolsW(hProcess, BaseOfDll, EnumSymbolsCallback, UserContext)
# hProcess : HANDLE -> "void*"
# BaseOfDll : DWORD -> "dword"
# EnumSymbolsCallback : PSYM_ENUMSYMBOLS_CALLBACKW -> "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。