GetVersionFromProcess

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

HRESULT GetVersionFromProcess(
    HANDLE hProcess,
    LPWSTR pVersion,
    DWORD cchBuffer,
    DWORD* dwLength
);

<DllImport("MSCorEE.dll", ExactSpelling:=True)>
Public Shared Function GetVersionFromProcess(
    hProcess As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pVersion As System.Text.StringBuilder,   ' LPWSTR out
    cchBuffer As UInteger,   ' DWORD
    <Out> ByRef dwLength As UInteger   ' DWORD* out
) As Integer
End Function

' hProcess : HANDLE
' pVersion : LPWSTR out
' cchBuffer : DWORD
' dwLength : DWORD* out
Declare PtrSafe Function GetVersionFromProcess Lib "mscoree" ( _
    ByVal hProcess As LongPtr, _
    ByVal pVersion As LongPtr, _
    ByVal cchBuffer As Long, _
    ByRef dwLength 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

GetVersionFromProcess = ctypes.windll.mscoree.GetVersionFromProcess
GetVersionFromProcess.restype = ctypes.c_int
GetVersionFromProcess.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    wintypes.LPWSTR,  # pVersion : LPWSTR out
    wintypes.DWORD,  # cchBuffer : DWORD
    ctypes.POINTER(wintypes.DWORD),  # dwLength : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSCorEE.dll')
GetVersionFromProcess = Fiddle::Function.new(
  lib['GetVersionFromProcess'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # pVersion : LPWSTR out
    -Fiddle::TYPE_INT,  # cchBuffer : DWORD
    Fiddle::TYPE_VOIDP,  # dwLength : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mscoree")]
extern "system" {
    fn GetVersionFromProcess(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        pVersion: *mut u16,  // LPWSTR out
        cchBuffer: u32,  // DWORD
        dwLength: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSCorEE.dll")]
public static extern int GetVersionFromProcess(IntPtr hProcess, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pVersion, uint cchBuffer, out uint dwLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSCorEE_GetVersionFromProcess' -Namespace Win32 -PassThru
# $api::GetVersionFromProcess(hProcess, pVersion, cchBuffer, dwLength)

#uselib "MSCorEE.dll"
#func global GetVersionFromProcess "GetVersionFromProcess" sptr, sptr, sptr, sptr
; GetVersionFromProcess hProcess, varptr(pVersion), cchBuffer, varptr(dwLength)   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; pVersion : LPWSTR out -> "sptr"
; cchBuffer : DWORD -> "sptr"
; dwLength : 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 "MSCorEE.dll"
#cfunc global GetVersionFromProcess "GetVersionFromProcess" sptr, var, int, var
; res = GetVersionFromProcess(hProcess, pVersion, cchBuffer, dwLength)
; hProcess : HANDLE -> "sptr"
; pVersion : LPWSTR out -> "var"
; cchBuffer : DWORD -> "int"
; dwLength : 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。

; HRESULT GetVersionFromProcess(HANDLE hProcess, LPWSTR pVersion, DWORD cchBuffer, DWORD* dwLength)
#uselib "MSCorEE.dll"
#cfunc global GetVersionFromProcess "GetVersionFromProcess" intptr, var, int, var
; res = GetVersionFromProcess(hProcess, pVersion, cchBuffer, dwLength)
; hProcess : HANDLE -> "intptr"
; pVersion : LPWSTR out -> "var"
; cchBuffer : DWORD -> "int"
; dwLength : 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 (
	mscoree = windows.NewLazySystemDLL("MSCorEE.dll")
	procGetVersionFromProcess = mscoree.NewProc("GetVersionFromProcess")
)

// hProcess (HANDLE), pVersion (LPWSTR out), cchBuffer (DWORD), dwLength (DWORD* out)
r1, _, err := procGetVersionFromProcess.Call(
	uintptr(hProcess),
	uintptr(pVersion),
	uintptr(cchBuffer),
	uintptr(dwLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetVersionFromProcess(
  hProcess: THandle;   // HANDLE
  pVersion: PWideChar;   // LPWSTR out
  cchBuffer: DWORD;   // DWORD
  dwLength: Pointer   // DWORD* out
): Integer; stdcall;
  external 'MSCorEE.dll' name 'GetVersionFromProcess';

result := DllCall("MSCorEE\GetVersionFromProcess"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", pVersion   ; LPWSTR out
    , "UInt", cchBuffer   ; DWORD
    , "Ptr", dwLength   ; DWORD* out
    , "Int")   ; return: HRESULT

●GetVersionFromProcess(hProcess, pVersion, cchBuffer, dwLength) = DLL("MSCorEE.dll", "int GetVersionFromProcess(void*, char*, dword, void*)")
# 呼び出し: GetVersionFromProcess(hProcess, pVersion, cchBuffer, dwLength)
# hProcess : HANDLE -> "void*"
# pVersion : LPWSTR out -> "char*"
# cchBuffer : DWORD -> "dword"
# dwLength : 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)。