GetThreadDescription

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

HRESULT GetThreadDescription(
    HANDLE hThread,
    LPWSTR* ppszThreadDescription
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetThreadDescription(
    hThread As IntPtr,   ' HANDLE
    ppszThreadDescription As IntPtr   ' LPWSTR* out
) As Integer
End Function

' hThread : HANDLE
' ppszThreadDescription : LPWSTR* out
Declare PtrSafe Function GetThreadDescription Lib "kernel32" ( _
    ByVal hThread As LongPtr, _
    ByVal ppszThreadDescription As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetThreadDescription = ctypes.windll.kernel32.GetThreadDescription
GetThreadDescription.restype = ctypes.c_int
GetThreadDescription.argtypes = [
    wintypes.HANDLE,  # hThread : HANDLE
    ctypes.c_void_p,  # ppszThreadDescription : LPWSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetThreadDescription = Fiddle::Function.new(
  lib['GetThreadDescription'],
  [
    Fiddle::TYPE_VOIDP,  # hThread : HANDLE
    Fiddle::TYPE_VOIDP,  # ppszThreadDescription : LPWSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetThreadDescription(
        hThread: *mut core::ffi::c_void,  // HANDLE
        ppszThreadDescription: *mut *mut u16  // LPWSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern int GetThreadDescription(IntPtr hThread, IntPtr ppszThreadDescription);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetThreadDescription' -Namespace Win32 -PassThru
# $api::GetThreadDescription(hThread, ppszThreadDescription)

#uselib "KERNEL32.dll"
#func global GetThreadDescription "GetThreadDescription" sptr, sptr
; GetThreadDescription hThread, varptr(ppszThreadDescription)   ; 戻り値は stat
; hThread : HANDLE -> "sptr"
; ppszThreadDescription : LPWSTR* 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 GetThreadDescription "GetThreadDescription" sptr, var
; res = GetThreadDescription(hThread, ppszThreadDescription)
; hThread : HANDLE -> "sptr"
; ppszThreadDescription : LPWSTR* 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。

; HRESULT GetThreadDescription(HANDLE hThread, LPWSTR* ppszThreadDescription)
#uselib "KERNEL32.dll"
#cfunc global GetThreadDescription "GetThreadDescription" intptr, var
; res = GetThreadDescription(hThread, ppszThreadDescription)
; hThread : HANDLE -> "intptr"
; ppszThreadDescription : LPWSTR* 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")
	procGetThreadDescription = kernel32.NewProc("GetThreadDescription")
)

// hThread (HANDLE), ppszThreadDescription (LPWSTR* out)
r1, _, err := procGetThreadDescription.Call(
	uintptr(hThread),
	uintptr(ppszThreadDescription),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetThreadDescription(
  hThread: THandle;   // HANDLE
  ppszThreadDescription: PPWideChar   // LPWSTR* out
): Integer; stdcall;
  external 'KERNEL32.dll' name 'GetThreadDescription';

result := DllCall("KERNEL32\GetThreadDescription"
    , "Ptr", hThread   ; HANDLE
    , "Ptr", ppszThreadDescription   ; LPWSTR* out
    , "Int")   ; return: HRESULT

●GetThreadDescription(hThread, ppszThreadDescription) = DLL("KERNEL32.dll", "int GetThreadDescription(void*, void*)")
# 呼び出し: GetThreadDescription(hThread, ppszThreadDescription)
# hThread : HANDLE -> "void*"
# ppszThreadDescription : LPWSTR* 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)。