SymFromNameW

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

BOOL SymFromNameW(
    HANDLE hProcess,
    LPCWSTR Name,
    SYMBOL_INFOW* Symbol
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SymFromNameW(
    hProcess As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> Name As String,   ' LPCWSTR
    Symbol As IntPtr   ' SYMBOL_INFOW* in/out
) As Boolean
End Function

' hProcess : HANDLE
' Name : LPCWSTR
' Symbol : SYMBOL_INFOW* in/out
Declare PtrSafe Function SymFromNameW Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal Name As LongPtr, _
    ByVal Symbol 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

SymFromNameW = ctypes.windll.dbghelp.SymFromNameW
SymFromNameW.restype = wintypes.BOOL
SymFromNameW.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    wintypes.LPCWSTR,  # Name : LPCWSTR
    ctypes.c_void_p,  # Symbol : SYMBOL_INFOW* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
SymFromNameW = Fiddle::Function.new(
  lib['SymFromNameW'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # Name : LPCWSTR
    Fiddle::TYPE_VOIDP,  # Symbol : SYMBOL_INFOW* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn SymFromNameW(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        Name: *const u16,  // LPCWSTR
        Symbol: *mut SYMBOL_INFOW  // SYMBOL_INFOW* in/out
    ) -> 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 SymFromNameW(IntPtr hProcess, [MarshalAs(UnmanagedType.LPWStr)] string Name, IntPtr Symbol);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymFromNameW' -Namespace Win32 -PassThru
# $api::SymFromNameW(hProcess, Name, Symbol)

#uselib "dbghelp.dll"
#func global SymFromNameW "SymFromNameW" wptr, wptr, wptr
; SymFromNameW hProcess, Name, varptr(Symbol)   ; 戻り値は stat
; hProcess : HANDLE -> "wptr"
; Name : LPCWSTR -> "wptr"
; Symbol : SYMBOL_INFOW* 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 "dbghelp.dll"
#cfunc global SymFromNameW "SymFromNameW" sptr, wstr, var
; res = SymFromNameW(hProcess, Name, Symbol)
; hProcess : HANDLE -> "sptr"
; Name : LPCWSTR -> "wstr"
; Symbol : SYMBOL_INFOW* 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。

; BOOL SymFromNameW(HANDLE hProcess, LPCWSTR Name, SYMBOL_INFOW* Symbol)
#uselib "dbghelp.dll"
#cfunc global SymFromNameW "SymFromNameW" intptr, wstr, var
; res = SymFromNameW(hProcess, Name, Symbol)
; hProcess : HANDLE -> "intptr"
; Name : LPCWSTR -> "wstr"
; Symbol : SYMBOL_INFOW* 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 (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procSymFromNameW = dbghelp.NewProc("SymFromNameW")
)

// hProcess (HANDLE), Name (LPCWSTR), Symbol (SYMBOL_INFOW* in/out)
r1, _, err := procSymFromNameW.Call(
	uintptr(hProcess),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Name))),
	uintptr(Symbol),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymFromNameW(
  hProcess: THandle;   // HANDLE
  Name: PWideChar;   // LPCWSTR
  Symbol: Pointer   // SYMBOL_INFOW* in/out
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymFromNameW';

result := DllCall("dbghelp\SymFromNameW"
    , "Ptr", hProcess   ; HANDLE
    , "WStr", Name   ; LPCWSTR
    , "Ptr", Symbol   ; SYMBOL_INFOW* in/out
    , "Int")   ; return: BOOL

●SymFromNameW(hProcess, Name, Symbol) = DLL("dbghelp.dll", "bool SymFromNameW(void*, char*, void*)")
# 呼び出し: SymFromNameW(hProcess, Name, Symbol)
# hProcess : HANDLE -> "void*"
# Name : LPCWSTR -> "char*"
# Symbol : SYMBOL_INFOW* 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。