SymGetSourceFileW

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

BOOL SymGetSourceFileW(
    HANDLE hProcess,
    ULONGLONG Base,
    LPCWSTR Params,   // optional
    LPCWSTR FileSpec,
    LPWSTR FilePath,
    DWORD Size
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SymGetSourceFileW(
    hProcess As IntPtr,   ' HANDLE
    Base As ULong,   ' ULONGLONG
    <MarshalAs(UnmanagedType.LPWStr)> Params As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> FileSpec As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> FilePath As System.Text.StringBuilder,   ' LPWSTR out
    Size As UInteger   ' DWORD
) As Boolean
End Function

' hProcess : HANDLE
' Base : ULONGLONG
' Params : LPCWSTR optional
' FileSpec : LPCWSTR
' FilePath : LPWSTR out
' Size : DWORD
Declare PtrSafe Function SymGetSourceFileW Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal Base As LongLong, _
    ByVal Params As LongPtr, _
    ByVal FileSpec As LongPtr, _
    ByVal FilePath As LongPtr, _
    ByVal Size 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

SymGetSourceFileW = ctypes.windll.dbghelp.SymGetSourceFileW
SymGetSourceFileW.restype = wintypes.BOOL
SymGetSourceFileW.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.c_ulonglong,  # Base : ULONGLONG
    wintypes.LPCWSTR,  # Params : LPCWSTR optional
    wintypes.LPCWSTR,  # FileSpec : LPCWSTR
    wintypes.LPWSTR,  # FilePath : LPWSTR out
    wintypes.DWORD,  # Size : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
SymGetSourceFileW = Fiddle::Function.new(
  lib['SymGetSourceFileW'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    -Fiddle::TYPE_LONG_LONG,  # Base : ULONGLONG
    Fiddle::TYPE_VOIDP,  # Params : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # FileSpec : LPCWSTR
    Fiddle::TYPE_VOIDP,  # FilePath : LPWSTR out
    -Fiddle::TYPE_INT,  # Size : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn SymGetSourceFileW(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        Base: u64,  // ULONGLONG
        Params: *const u16,  // LPCWSTR optional
        FileSpec: *const u16,  // LPCWSTR
        FilePath: *mut u16,  // LPWSTR out
        Size: u32  // DWORD
    ) -> 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 SymGetSourceFileW(IntPtr hProcess, ulong Base, [MarshalAs(UnmanagedType.LPWStr)] string Params, [MarshalAs(UnmanagedType.LPWStr)] string FileSpec, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder FilePath, uint Size);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymGetSourceFileW' -Namespace Win32 -PassThru
# $api::SymGetSourceFileW(hProcess, Base, Params, FileSpec, FilePath, Size)

#uselib "dbghelp.dll"
#func global SymGetSourceFileW "SymGetSourceFileW" wptr, wptr, wptr, wptr, wptr, wptr
; SymGetSourceFileW hProcess, Base, Params, FileSpec, varptr(FilePath), Size   ; 戻り値は stat
; hProcess : HANDLE -> "wptr"
; Base : ULONGLONG -> "wptr"
; Params : LPCWSTR optional -> "wptr"
; FileSpec : LPCWSTR -> "wptr"
; FilePath : LPWSTR out -> "wptr"
; Size : DWORD -> "wptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 SymGetSourceFileW "SymGetSourceFileW" sptr, int64, wstr, wstr, var, int
; res = SymGetSourceFileW(hProcess, Base, Params, FileSpec, FilePath, Size)
; hProcess : HANDLE -> "sptr"
; Base : ULONGLONG -> "int64"
; Params : LPCWSTR optional -> "wstr"
; FileSpec : LPCWSTR -> "wstr"
; FilePath : LPWSTR out -> "var"
; Size : 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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; BOOL SymGetSourceFileW(HANDLE hProcess, ULONGLONG Base, LPCWSTR Params, LPCWSTR FileSpec, LPWSTR FilePath, DWORD Size)
#uselib "dbghelp.dll"
#cfunc global SymGetSourceFileW "SymGetSourceFileW" intptr, int64, wstr, wstr, var, int
; res = SymGetSourceFileW(hProcess, Base, Params, FileSpec, FilePath, Size)
; hProcess : HANDLE -> "intptr"
; Base : ULONGLONG -> "int64"
; Params : LPCWSTR optional -> "wstr"
; FileSpec : LPCWSTR -> "wstr"
; FilePath : LPWSTR out -> "var"
; Size : 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 (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procSymGetSourceFileW = dbghelp.NewProc("SymGetSourceFileW")
)

// hProcess (HANDLE), Base (ULONGLONG), Params (LPCWSTR optional), FileSpec (LPCWSTR), FilePath (LPWSTR out), Size (DWORD)
r1, _, err := procSymGetSourceFileW.Call(
	uintptr(hProcess),
	uintptr(Base),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Params))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(FileSpec))),
	uintptr(FilePath),
	uintptr(Size),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymGetSourceFileW(
  hProcess: THandle;   // HANDLE
  Base: UInt64;   // ULONGLONG
  Params: PWideChar;   // LPCWSTR optional
  FileSpec: PWideChar;   // LPCWSTR
  FilePath: PWideChar;   // LPWSTR out
  Size: DWORD   // DWORD
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymGetSourceFileW';

result := DllCall("dbghelp\SymGetSourceFileW"
    , "Ptr", hProcess   ; HANDLE
    , "Int64", Base   ; ULONGLONG
    , "WStr", Params   ; LPCWSTR optional
    , "WStr", FileSpec   ; LPCWSTR
    , "Ptr", FilePath   ; LPWSTR out
    , "UInt", Size   ; DWORD
    , "Int")   ; return: BOOL

●SymGetSourceFileW(hProcess, Base, Params, FileSpec, FilePath, Size) = DLL("dbghelp.dll", "bool SymGetSourceFileW(void*, qword, char*, char*, char*, dword)")
# 呼び出し: SymGetSourceFileW(hProcess, Base, Params, FileSpec, FilePath, Size)
# hProcess : HANDLE -> "void*"
# Base : ULONGLONG -> "qword"
# Params : LPCWSTR optional -> "char*"
# FileSpec : LPCWSTR -> "char*"
# FilePath : LPWSTR out -> "char*"
# Size : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。