GetProcessesInVirtualizationContext

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

HRESULT GetProcessesInVirtualizationContext(
    LPCWSTR packageFamilyName,
    DWORD* count,
    HANDLE** processes
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetProcessesInVirtualizationContext(
    <MarshalAs(UnmanagedType.LPWStr)> packageFamilyName As String,   ' LPCWSTR
    <Out> ByRef count As UInteger,   ' DWORD* out
    processes As IntPtr   ' HANDLE** out
) As Integer
End Function

' packageFamilyName : LPCWSTR
' count : DWORD* out
' processes : HANDLE** out
Declare PtrSafe Function GetProcessesInVirtualizationContext Lib "kernel32" ( _
    ByVal packageFamilyName As LongPtr, _
    ByRef count As Long, _
    ByVal processes 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

GetProcessesInVirtualizationContext = ctypes.windll.kernel32.GetProcessesInVirtualizationContext
GetProcessesInVirtualizationContext.restype = ctypes.c_int
GetProcessesInVirtualizationContext.argtypes = [
    wintypes.LPCWSTR,  # packageFamilyName : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # count : DWORD* out
    ctypes.c_void_p,  # processes : HANDLE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetProcessesInVirtualizationContext = Fiddle::Function.new(
  lib['GetProcessesInVirtualizationContext'],
  [
    Fiddle::TYPE_VOIDP,  # packageFamilyName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # count : DWORD* out
    Fiddle::TYPE_VOIDP,  # processes : HANDLE** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetProcessesInVirtualizationContext(
        packageFamilyName: *const u16,  // LPCWSTR
        count: *mut u32,  // DWORD* out
        processes: *mut *mut *mut core::ffi::c_void  // HANDLE** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern int GetProcessesInVirtualizationContext([MarshalAs(UnmanagedType.LPWStr)] string packageFamilyName, out uint count, IntPtr processes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetProcessesInVirtualizationContext' -Namespace Win32 -PassThru
# $api::GetProcessesInVirtualizationContext(packageFamilyName, count, processes)

#uselib "KERNEL32.dll"
#func global GetProcessesInVirtualizationContext "GetProcessesInVirtualizationContext" sptr, sptr, sptr
; GetProcessesInVirtualizationContext packageFamilyName, varptr(count), processes   ; 戻り値は stat
; packageFamilyName : LPCWSTR -> "sptr"
; count : DWORD* out -> "sptr"
; processes : HANDLE** 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 GetProcessesInVirtualizationContext "GetProcessesInVirtualizationContext" wstr, var, sptr
; res = GetProcessesInVirtualizationContext(packageFamilyName, count, processes)
; packageFamilyName : LPCWSTR -> "wstr"
; count : DWORD* out -> "var"
; processes : HANDLE** out -> "sptr"
; ※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 GetProcessesInVirtualizationContext(LPCWSTR packageFamilyName, DWORD* count, HANDLE** processes)
#uselib "KERNEL32.dll"
#cfunc global GetProcessesInVirtualizationContext "GetProcessesInVirtualizationContext" wstr, var, intptr
; res = GetProcessesInVirtualizationContext(packageFamilyName, count, processes)
; packageFamilyName : LPCWSTR -> "wstr"
; count : DWORD* out -> "var"
; processes : HANDLE** out -> "intptr"
; ※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")
	procGetProcessesInVirtualizationContext = kernel32.NewProc("GetProcessesInVirtualizationContext")
)

// packageFamilyName (LPCWSTR), count (DWORD* out), processes (HANDLE** out)
r1, _, err := procGetProcessesInVirtualizationContext.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(packageFamilyName))),
	uintptr(count),
	uintptr(processes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetProcessesInVirtualizationContext(
  packageFamilyName: PWideChar;   // LPCWSTR
  count: Pointer;   // DWORD* out
  processes: Pointer   // HANDLE** out
): Integer; stdcall;
  external 'KERNEL32.dll' name 'GetProcessesInVirtualizationContext';

result := DllCall("KERNEL32\GetProcessesInVirtualizationContext"
    , "WStr", packageFamilyName   ; LPCWSTR
    , "Ptr", count   ; DWORD* out
    , "Ptr", processes   ; HANDLE** out
    , "Int")   ; return: HRESULT

●GetProcessesInVirtualizationContext(packageFamilyName, count, processes) = DLL("KERNEL32.dll", "int GetProcessesInVirtualizationContext(char*, void*, void*)")
# 呼び出し: GetProcessesInVirtualizationContext(packageFamilyName, count, processes)
# packageFamilyName : LPCWSTR -> "char*"
# count : DWORD* out -> "void*"
# processes : HANDLE** 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)。