SymGetSourceVarFromToken

// dbghelp.dll  (ANSI / -A)
#include <windows.h>

BOOL SymGetSourceVarFromToken(
    HANDLE hProcess,
    void* Token,
    LPCSTR Params,   // optional
    LPCSTR VarName,
    LPSTR Value,
    DWORD Size
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SymGetSourceVarFromToken(
    hProcess As IntPtr,   ' HANDLE
    Token As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPStr)> Params As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> VarName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> Value As System.Text.StringBuilder,   ' LPSTR out
    Size As UInteger   ' DWORD
) As Boolean
End Function

' hProcess : HANDLE
' Token : void*
' Params : LPCSTR optional
' VarName : LPCSTR
' Value : LPSTR out
' Size : DWORD
Declare PtrSafe Function SymGetSourceVarFromToken Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal Token As LongPtr, _
    ByVal Params As String, _
    ByVal VarName As String, _
    ByVal Value As String, _
    ByVal Size As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SymGetSourceVarFromToken = ctypes.windll.dbghelp.SymGetSourceVarFromToken
SymGetSourceVarFromToken.restype = wintypes.BOOL
SymGetSourceVarFromToken.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.POINTER(None),  # Token : void*
    wintypes.LPCSTR,  # Params : LPCSTR optional
    wintypes.LPCSTR,  # VarName : LPCSTR
    wintypes.LPSTR,  # Value : LPSTR 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')
SymGetSourceVarFromToken = Fiddle::Function.new(
  lib['SymGetSourceVarFromToken'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # Token : void*
    Fiddle::TYPE_VOIDP,  # Params : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # VarName : LPCSTR
    Fiddle::TYPE_VOIDP,  # Value : LPSTR out
    -Fiddle::TYPE_INT,  # Size : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "dbghelp")]
extern "system" {
    fn SymGetSourceVarFromToken(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        Token: *mut (),  // void*
        Params: *const u8,  // LPCSTR optional
        VarName: *const u8,  // LPCSTR
        Value: *mut u8,  // LPSTR 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.Ansi, SetLastError = true)]
public static extern bool SymGetSourceVarFromToken(IntPtr hProcess, IntPtr Token, [MarshalAs(UnmanagedType.LPStr)] string Params, [MarshalAs(UnmanagedType.LPStr)] string VarName, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder Value, uint Size);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymGetSourceVarFromToken' -Namespace Win32 -PassThru
# $api::SymGetSourceVarFromToken(hProcess, Token, Params, VarName, Value, Size)

#uselib "dbghelp.dll"
#func global SymGetSourceVarFromToken "SymGetSourceVarFromToken" sptr, sptr, sptr, sptr, sptr, sptr
; SymGetSourceVarFromToken hProcess, Token, Params, VarName, varptr(Value), Size   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; Token : void* -> "sptr"
; Params : LPCSTR optional -> "sptr"
; VarName : LPCSTR -> "sptr"
; Value : LPSTR out -> "sptr"
; Size : DWORD -> "sptr"
; ※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 SymGetSourceVarFromToken "SymGetSourceVarFromToken" sptr, sptr, str, str, var, int
; res = SymGetSourceVarFromToken(hProcess, Token, Params, VarName, Value, Size)
; hProcess : HANDLE -> "sptr"
; Token : void* -> "sptr"
; Params : LPCSTR optional -> "str"
; VarName : LPCSTR -> "str"
; Value : LPSTR 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。

; BOOL SymGetSourceVarFromToken(HANDLE hProcess, void* Token, LPCSTR Params, LPCSTR VarName, LPSTR Value, DWORD Size)
#uselib "dbghelp.dll"
#cfunc global SymGetSourceVarFromToken "SymGetSourceVarFromToken" intptr, intptr, str, str, var, int
; res = SymGetSourceVarFromToken(hProcess, Token, Params, VarName, Value, Size)
; hProcess : HANDLE -> "intptr"
; Token : void* -> "intptr"
; Params : LPCSTR optional -> "str"
; VarName : LPCSTR -> "str"
; Value : LPSTR 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")
	procSymGetSourceVarFromToken = dbghelp.NewProc("SymGetSourceVarFromToken")
)

// hProcess (HANDLE), Token (void*), Params (LPCSTR optional), VarName (LPCSTR), Value (LPSTR out), Size (DWORD)
r1, _, err := procSymGetSourceVarFromToken.Call(
	uintptr(hProcess),
	uintptr(Token),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(Params))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(VarName))),
	uintptr(Value),
	uintptr(Size),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymGetSourceVarFromToken(
  hProcess: THandle;   // HANDLE
  Token: Pointer;   // void*
  Params: PAnsiChar;   // LPCSTR optional
  VarName: PAnsiChar;   // LPCSTR
  Value: PAnsiChar;   // LPSTR out
  Size: DWORD   // DWORD
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymGetSourceVarFromToken';

result := DllCall("dbghelp\SymGetSourceVarFromToken"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", Token   ; void*
    , "AStr", Params   ; LPCSTR optional
    , "AStr", VarName   ; LPCSTR
    , "Ptr", Value   ; LPSTR out
    , "UInt", Size   ; DWORD
    , "Int")   ; return: BOOL

●SymGetSourceVarFromToken(hProcess, Token, Params, VarName, Value, Size) = DLL("dbghelp.dll", "bool SymGetSourceVarFromToken(void*, void*, char*, char*, char*, dword)")
# 呼び出し: SymGetSourceVarFromToken(hProcess, Token, Params, VarName, Value, Size)
# hProcess : HANDLE -> "void*"
# Token : void* -> "void*"
# Params : LPCSTR optional -> "char*"
# VarName : LPCSTR -> "char*"
# Value : LPSTR 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)。