GetExitCodeThread

// KERNEL32.dll
#include <windows.h>

BOOL GetExitCodeThread(
    HANDLE hThread,
    DWORD* lpExitCode
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetExitCodeThread(
    hThread As IntPtr,   ' HANDLE
    <Out> ByRef lpExitCode As UInteger   ' DWORD* out
) As Boolean
End Function

' hThread : HANDLE
' lpExitCode : DWORD* out
Declare PtrSafe Function GetExitCodeThread Lib "kernel32" ( _
    ByVal hThread As LongPtr, _
    ByRef lpExitCode 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

GetExitCodeThread = ctypes.windll.kernel32.GetExitCodeThread
GetExitCodeThread.restype = wintypes.BOOL
GetExitCodeThread.argtypes = [
    wintypes.HANDLE,  # hThread : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # lpExitCode : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetExitCodeThread = Fiddle::Function.new(
  lib['GetExitCodeThread'],
  [
    Fiddle::TYPE_VOIDP,  # hThread : HANDLE
    Fiddle::TYPE_VOIDP,  # lpExitCode : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetExitCodeThread(
        hThread: *mut core::ffi::c_void,  // HANDLE
        lpExitCode: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool GetExitCodeThread(IntPtr hThread, out uint lpExitCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetExitCodeThread' -Namespace Win32 -PassThru
# $api::GetExitCodeThread(hThread, lpExitCode)

#uselib "KERNEL32.dll"
#func global GetExitCodeThread "GetExitCodeThread" sptr, sptr
; GetExitCodeThread hThread, varptr(lpExitCode)   ; 戻り値は stat
; hThread : HANDLE -> "sptr"
; lpExitCode : DWORD* out -> "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 "KERNEL32.dll"
#cfunc global GetExitCodeThread "GetExitCodeThread" sptr, var
; res = GetExitCodeThread(hThread, lpExitCode)
; hThread : HANDLE -> "sptr"
; lpExitCode : DWORD* 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 GetExitCodeThread(HANDLE hThread, DWORD* lpExitCode)
#uselib "KERNEL32.dll"
#cfunc global GetExitCodeThread "GetExitCodeThread" intptr, var
; res = GetExitCodeThread(hThread, lpExitCode)
; hThread : HANDLE -> "intptr"
; lpExitCode : DWORD* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetExitCodeThread = kernel32.NewProc("GetExitCodeThread")
)

// hThread (HANDLE), lpExitCode (DWORD* out)
r1, _, err := procGetExitCodeThread.Call(
	uintptr(hThread),
	uintptr(lpExitCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetExitCodeThread(
  hThread: THandle;   // HANDLE
  lpExitCode: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetExitCodeThread';

result := DllCall("KERNEL32\GetExitCodeThread"
    , "Ptr", hThread   ; HANDLE
    , "Ptr", lpExitCode   ; DWORD* out
    , "Int")   ; return: BOOL

●GetExitCodeThread(hThread, lpExitCode) = DLL("KERNEL32.dll", "bool GetExitCodeThread(void*, void*)")
# 呼び出し: GetExitCodeThread(hThread, lpExitCode)
# hThread : HANDLE -> "void*"
# lpExitCode : DWORD* 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)。