Process32NextW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

BOOL Process32NextW(
    HANDLE hSnapshot,
    PROCESSENTRY32W* lppe
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function Process32NextW(
    hSnapshot As IntPtr,   ' HANDLE
    lppe As IntPtr   ' PROCESSENTRY32W* in/out
) As Boolean
End Function

' hSnapshot : HANDLE
' lppe : PROCESSENTRY32W* in/out
Declare PtrSafe Function Process32NextW Lib "kernel32" ( _
    ByVal hSnapshot As LongPtr, _
    ByVal lppe As LongPtr) 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

Process32NextW = ctypes.windll.kernel32.Process32NextW
Process32NextW.restype = wintypes.BOOL
Process32NextW.argtypes = [
    wintypes.HANDLE,  # hSnapshot : HANDLE
    ctypes.c_void_p,  # lppe : PROCESSENTRY32W* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
Process32NextW = Fiddle::Function.new(
  lib['Process32NextW'],
  [
    Fiddle::TYPE_VOIDP,  # hSnapshot : HANDLE
    Fiddle::TYPE_VOIDP,  # lppe : PROCESSENTRY32W* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn Process32NextW(
        hSnapshot: *mut core::ffi::c_void,  // HANDLE
        lppe: *mut PROCESSENTRY32W  // PROCESSENTRY32W* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool Process32NextW(IntPtr hSnapshot, IntPtr lppe);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_Process32NextW' -Namespace Win32 -PassThru
# $api::Process32NextW(hSnapshot, lppe)

#uselib "KERNEL32.dll"
#func global Process32NextW "Process32NextW" wptr, wptr
; Process32NextW hSnapshot, varptr(lppe)   ; 戻り値は stat
; hSnapshot : HANDLE -> "wptr"
; lppe : PROCESSENTRY32W* in/out -> "wptr"
; ※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 Process32NextW "Process32NextW" sptr, var
; res = Process32NextW(hSnapshot, lppe)
; hSnapshot : HANDLE -> "sptr"
; lppe : PROCESSENTRY32W* 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。

; BOOL Process32NextW(HANDLE hSnapshot, PROCESSENTRY32W* lppe)
#uselib "KERNEL32.dll"
#cfunc global Process32NextW "Process32NextW" intptr, var
; res = Process32NextW(hSnapshot, lppe)
; hSnapshot : HANDLE -> "intptr"
; lppe : PROCESSENTRY32W* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procProcess32NextW = kernel32.NewProc("Process32NextW")
)

// hSnapshot (HANDLE), lppe (PROCESSENTRY32W* in/out)
r1, _, err := procProcess32NextW.Call(
	uintptr(hSnapshot),
	uintptr(lppe),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function Process32NextW(
  hSnapshot: THandle;   // HANDLE
  lppe: Pointer   // PROCESSENTRY32W* in/out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'Process32NextW';

result := DllCall("KERNEL32\Process32NextW"
    , "Ptr", hSnapshot   ; HANDLE
    , "Ptr", lppe   ; PROCESSENTRY32W* in/out
    , "Int")   ; return: BOOL

●Process32NextW(hSnapshot, lppe) = DLL("KERNEL32.dll", "bool Process32NextW(void*, void*)")
# 呼び出し: Process32NextW(hSnapshot, lppe)
# hSnapshot : HANDLE -> "void*"
# lppe : PROCESSENTRY32W* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。