MsiBeginTransactionW

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

DWORD MsiBeginTransactionW(
    LPCWSTR szName,
    DWORD dwTransactionAttributes,
    MSIHANDLE* phTransactionHandle,
    HANDLE* phChangeOfOwnerEvent
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiBeginTransactionW(
    <MarshalAs(UnmanagedType.LPWStr)> szName As String,   ' LPCWSTR
    dwTransactionAttributes As UInteger,   ' DWORD
    <Out> ByRef phTransactionHandle As UInteger,   ' MSIHANDLE* out
    phChangeOfOwnerEvent As IntPtr   ' HANDLE* out
) As UInteger
End Function

' szName : LPCWSTR
' dwTransactionAttributes : DWORD
' phTransactionHandle : MSIHANDLE* out
' phChangeOfOwnerEvent : HANDLE* out
Declare PtrSafe Function MsiBeginTransactionW Lib "msi" ( _
    ByVal szName As LongPtr, _
    ByVal dwTransactionAttributes As Long, _
    ByRef phTransactionHandle As Long, _
    ByVal phChangeOfOwnerEvent 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

MsiBeginTransactionW = ctypes.windll.msi.MsiBeginTransactionW
MsiBeginTransactionW.restype = wintypes.DWORD
MsiBeginTransactionW.argtypes = [
    wintypes.LPCWSTR,  # szName : LPCWSTR
    wintypes.DWORD,  # dwTransactionAttributes : DWORD
    ctypes.c_void_p,  # phTransactionHandle : MSIHANDLE* out
    ctypes.c_void_p,  # phChangeOfOwnerEvent : HANDLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiBeginTransactionW = Fiddle::Function.new(
  lib['MsiBeginTransactionW'],
  [
    Fiddle::TYPE_VOIDP,  # szName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwTransactionAttributes : DWORD
    Fiddle::TYPE_VOIDP,  # phTransactionHandle : MSIHANDLE* out
    Fiddle::TYPE_VOIDP,  # phChangeOfOwnerEvent : HANDLE* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiBeginTransactionW(
        szName: *const u16,  // LPCWSTR
        dwTransactionAttributes: u32,  // DWORD
        phTransactionHandle: *mut u32,  // MSIHANDLE* out
        phChangeOfOwnerEvent: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern uint MsiBeginTransactionW([MarshalAs(UnmanagedType.LPWStr)] string szName, uint dwTransactionAttributes, out uint phTransactionHandle, IntPtr phChangeOfOwnerEvent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiBeginTransactionW' -Namespace Win32 -PassThru
# $api::MsiBeginTransactionW(szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent)

#uselib "msi.dll"
#func global MsiBeginTransactionW "MsiBeginTransactionW" wptr, wptr, wptr, wptr
; MsiBeginTransactionW szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent   ; 戻り値は stat
; szName : LPCWSTR -> "wptr"
; dwTransactionAttributes : DWORD -> "wptr"
; phTransactionHandle : MSIHANDLE* out -> "wptr"
; phChangeOfOwnerEvent : HANDLE* 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 "msi.dll"
#cfunc global MsiBeginTransactionW "MsiBeginTransactionW" wstr, int, int, sptr
; res = MsiBeginTransactionW(szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent)
; szName : LPCWSTR -> "wstr"
; dwTransactionAttributes : DWORD -> "int"
; phTransactionHandle : MSIHANDLE* out -> "int"
; phChangeOfOwnerEvent : HANDLE* out -> "sptr"

; DWORD MsiBeginTransactionW(LPCWSTR szName, DWORD dwTransactionAttributes, MSIHANDLE* phTransactionHandle, HANDLE* phChangeOfOwnerEvent)
#uselib "msi.dll"
#cfunc global MsiBeginTransactionW "MsiBeginTransactionW" wstr, int, int, intptr
; res = MsiBeginTransactionW(szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent)
; szName : LPCWSTR -> "wstr"
; dwTransactionAttributes : DWORD -> "int"
; phTransactionHandle : MSIHANDLE* out -> "int"
; phChangeOfOwnerEvent : HANDLE* out -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiBeginTransactionW = msi.NewProc("MsiBeginTransactionW")
)

// szName (LPCWSTR), dwTransactionAttributes (DWORD), phTransactionHandle (MSIHANDLE* out), phChangeOfOwnerEvent (HANDLE* out)
r1, _, err := procMsiBeginTransactionW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szName))),
	uintptr(dwTransactionAttributes),
	uintptr(phTransactionHandle),
	uintptr(phChangeOfOwnerEvent),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiBeginTransactionW(
  szName: PWideChar;   // LPCWSTR
  dwTransactionAttributes: DWORD;   // DWORD
  phTransactionHandle: Pointer;   // MSIHANDLE* out
  phChangeOfOwnerEvent: Pointer   // HANDLE* out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiBeginTransactionW';

result := DllCall("msi\MsiBeginTransactionW"
    , "WStr", szName   ; LPCWSTR
    , "UInt", dwTransactionAttributes   ; DWORD
    , "Ptr", phTransactionHandle   ; MSIHANDLE* out
    , "Ptr", phChangeOfOwnerEvent   ; HANDLE* out
    , "UInt")   ; return: DWORD

●MsiBeginTransactionW(szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent) = DLL("msi.dll", "dword MsiBeginTransactionW(char*, dword, void*, void*)")
# 呼び出し: MsiBeginTransactionW(szName, dwTransactionAttributes, phTransactionHandle, phChangeOfOwnerEvent)
# szName : LPCWSTR -> "char*"
# dwTransactionAttributes : DWORD -> "dword"
# phTransactionHandle : MSIHANDLE* out -> "void*"
# phChangeOfOwnerEvent : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。