QueryFullProcessImageNameW

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

BOOL QueryFullProcessImageNameW(
    HANDLE hProcess,
    PROCESS_NAME_FORMAT dwFlags,
    LPWSTR lpExeName,
    DWORD* lpdwSize
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function QueryFullProcessImageNameW(
    hProcess As IntPtr,   ' HANDLE
    dwFlags As UInteger,   ' PROCESS_NAME_FORMAT
    <MarshalAs(UnmanagedType.LPWStr)> lpExeName As System.Text.StringBuilder,   ' LPWSTR out
    ByRef lpdwSize As UInteger   ' DWORD* in/out
) As Boolean
End Function

' hProcess : HANDLE
' dwFlags : PROCESS_NAME_FORMAT
' lpExeName : LPWSTR out
' lpdwSize : DWORD* in/out
Declare PtrSafe Function QueryFullProcessImageNameW Lib "kernel32" ( _
    ByVal hProcess As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal lpExeName As LongPtr, _
    ByRef lpdwSize As Long) 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

QueryFullProcessImageNameW = ctypes.windll.kernel32.QueryFullProcessImageNameW
QueryFullProcessImageNameW.restype = wintypes.BOOL
QueryFullProcessImageNameW.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    wintypes.DWORD,  # dwFlags : PROCESS_NAME_FORMAT
    wintypes.LPWSTR,  # lpExeName : LPWSTR out
    ctypes.POINTER(wintypes.DWORD),  # lpdwSize : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
QueryFullProcessImageNameW = Fiddle::Function.new(
  lib['QueryFullProcessImageNameW'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    -Fiddle::TYPE_INT,  # dwFlags : PROCESS_NAME_FORMAT
    Fiddle::TYPE_VOIDP,  # lpExeName : LPWSTR out
    Fiddle::TYPE_VOIDP,  # lpdwSize : DWORD* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn QueryFullProcessImageNameW(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        dwFlags: u32,  // PROCESS_NAME_FORMAT
        lpExeName: *mut u16,  // LPWSTR out
        lpdwSize: *mut u32  // DWORD* 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 QueryFullProcessImageNameW(IntPtr hProcess, uint dwFlags, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpExeName, ref uint lpdwSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_QueryFullProcessImageNameW' -Namespace Win32 -PassThru
# $api::QueryFullProcessImageNameW(hProcess, dwFlags, lpExeName, lpdwSize)

#uselib "KERNEL32.dll"
#func global QueryFullProcessImageNameW "QueryFullProcessImageNameW" wptr, wptr, wptr, wptr
; QueryFullProcessImageNameW hProcess, dwFlags, varptr(lpExeName), varptr(lpdwSize)   ; 戻り値は stat
; hProcess : HANDLE -> "wptr"
; dwFlags : PROCESS_NAME_FORMAT -> "wptr"
; lpExeName : LPWSTR out -> "wptr"
; lpdwSize : DWORD* 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 QueryFullProcessImageNameW "QueryFullProcessImageNameW" sptr, int, var, var
; res = QueryFullProcessImageNameW(hProcess, dwFlags, lpExeName, lpdwSize)
; hProcess : HANDLE -> "sptr"
; dwFlags : PROCESS_NAME_FORMAT -> "int"
; lpExeName : LPWSTR out -> "var"
; lpdwSize : 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。

; BOOL QueryFullProcessImageNameW(HANDLE hProcess, PROCESS_NAME_FORMAT dwFlags, LPWSTR lpExeName, DWORD* lpdwSize)
#uselib "KERNEL32.dll"
#cfunc global QueryFullProcessImageNameW "QueryFullProcessImageNameW" intptr, int, var, var
; res = QueryFullProcessImageNameW(hProcess, dwFlags, lpExeName, lpdwSize)
; hProcess : HANDLE -> "intptr"
; dwFlags : PROCESS_NAME_FORMAT -> "int"
; lpExeName : LPWSTR out -> "var"
; lpdwSize : 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procQueryFullProcessImageNameW = kernel32.NewProc("QueryFullProcessImageNameW")
)

// hProcess (HANDLE), dwFlags (PROCESS_NAME_FORMAT), lpExeName (LPWSTR out), lpdwSize (DWORD* in/out)
r1, _, err := procQueryFullProcessImageNameW.Call(
	uintptr(hProcess),
	uintptr(dwFlags),
	uintptr(lpExeName),
	uintptr(lpdwSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function QueryFullProcessImageNameW(
  hProcess: THandle;   // HANDLE
  dwFlags: DWORD;   // PROCESS_NAME_FORMAT
  lpExeName: PWideChar;   // LPWSTR out
  lpdwSize: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'QueryFullProcessImageNameW';

result := DllCall("KERNEL32\QueryFullProcessImageNameW"
    , "Ptr", hProcess   ; HANDLE
    , "UInt", dwFlags   ; PROCESS_NAME_FORMAT
    , "Ptr", lpExeName   ; LPWSTR out
    , "Ptr", lpdwSize   ; DWORD* in/out
    , "Int")   ; return: BOOL

●QueryFullProcessImageNameW(hProcess, dwFlags, lpExeName, lpdwSize) = DLL("KERNEL32.dll", "bool QueryFullProcessImageNameW(void*, dword, char*, void*)")
# 呼び出し: QueryFullProcessImageNameW(hProcess, dwFlags, lpExeName, lpdwSize)
# hProcess : HANDLE -> "void*"
# dwFlags : PROCESS_NAME_FORMAT -> "dword"
# lpExeName : LPWSTR out -> "char*"
# lpdwSize : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。