SymGetUnwindInfo

// dbghelp.dll
#include <windows.h>

BOOL SymGetUnwindInfo(
    HANDLE hProcess,
    ULONGLONG Address,
    void* Buffer,   // optional
    DWORD* Size
);

<DllImport("dbghelp.dll", ExactSpelling:=True)>
Public Shared Function SymGetUnwindInfo(
    hProcess As IntPtr,   ' HANDLE
    Address As ULong,   ' ULONGLONG
    Buffer As IntPtr,   ' void* optional, out
    ByRef Size As UInteger   ' DWORD* in/out
) As Boolean
End Function

' hProcess : HANDLE
' Address : ULONGLONG
' Buffer : void* optional, out
' Size : DWORD* in/out
Declare PtrSafe Function SymGetUnwindInfo Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal Address As LongLong, _
    ByVal Buffer As LongPtr, _
    ByRef 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

SymGetUnwindInfo = ctypes.windll.dbghelp.SymGetUnwindInfo
SymGetUnwindInfo.restype = wintypes.BOOL
SymGetUnwindInfo.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.c_ulonglong,  # Address : ULONGLONG
    ctypes.POINTER(None),  # Buffer : void* optional, out
    ctypes.POINTER(wintypes.DWORD),  # Size : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
SymGetUnwindInfo = Fiddle::Function.new(
  lib['SymGetUnwindInfo'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    -Fiddle::TYPE_LONG_LONG,  # Address : ULONGLONG
    Fiddle::TYPE_VOIDP,  # Buffer : void* optional, out
    Fiddle::TYPE_VOIDP,  # Size : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dbghelp")]
extern "system" {
    fn SymGetUnwindInfo(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        Address: u64,  // ULONGLONG
        Buffer: *mut (),  // void* optional, out
        Size: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("dbghelp.dll")]
public static extern bool SymGetUnwindInfo(IntPtr hProcess, ulong Address, IntPtr Buffer, ref uint Size);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymGetUnwindInfo' -Namespace Win32 -PassThru
# $api::SymGetUnwindInfo(hProcess, Address, Buffer, Size)

#uselib "dbghelp.dll"
#func global SymGetUnwindInfo "SymGetUnwindInfo" sptr, sptr, sptr, sptr
; SymGetUnwindInfo hProcess, Address, Buffer, varptr(Size)   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; Address : ULONGLONG -> "sptr"
; Buffer : void* optional, out -> "sptr"
; Size : DWORD* in/out -> "sptr"
; ※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 SymGetUnwindInfo "SymGetUnwindInfo" sptr, int64, sptr, var
; res = SymGetUnwindInfo(hProcess, Address, Buffer, Size)
; hProcess : HANDLE -> "sptr"
; Address : ULONGLONG -> "int64"
; Buffer : void* optional, out -> "sptr"
; Size : DWORD* 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。
; ※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 SymGetUnwindInfo(HANDLE hProcess, ULONGLONG Address, void* Buffer, DWORD* Size)
#uselib "dbghelp.dll"
#cfunc global SymGetUnwindInfo "SymGetUnwindInfo" intptr, int64, intptr, var
; res = SymGetUnwindInfo(hProcess, Address, Buffer, Size)
; hProcess : HANDLE -> "intptr"
; Address : ULONGLONG -> "int64"
; Buffer : void* optional, out -> "intptr"
; Size : DWORD* 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")
	procSymGetUnwindInfo = dbghelp.NewProc("SymGetUnwindInfo")
)

// hProcess (HANDLE), Address (ULONGLONG), Buffer (void* optional, out), Size (DWORD* in/out)
r1, _, err := procSymGetUnwindInfo.Call(
	uintptr(hProcess),
	uintptr(Address),
	uintptr(Buffer),
	uintptr(Size),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymGetUnwindInfo(
  hProcess: THandle;   // HANDLE
  Address: UInt64;   // ULONGLONG
  Buffer: Pointer;   // void* optional, out
  Size: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymGetUnwindInfo';

result := DllCall("dbghelp\SymGetUnwindInfo"
    , "Ptr", hProcess   ; HANDLE
    , "Int64", Address   ; ULONGLONG
    , "Ptr", Buffer   ; void* optional, out
    , "Ptr", Size   ; DWORD* in/out
    , "Int")   ; return: BOOL

●SymGetUnwindInfo(hProcess, Address, Buffer, Size) = DLL("dbghelp.dll", "bool SymGetUnwindInfo(void*, qword, void*, void*)")
# 呼び出し: SymGetUnwindInfo(hProcess, Address, Buffer, Size)
# hProcess : HANDLE -> "void*"
# Address : ULONGLONG -> "qword"
# Buffer : void* optional, out -> "void*"
# Size : DWORD* 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)。