MsiConfigureProductA

// msi.dll  (ANSI / -A)
#include <windows.h>

DWORD MsiConfigureProductA(
    LPCSTR szProduct,
    INSTALLLEVEL iInstallLevel,
    INSTALLSTATE eInstallState
);

<DllImport("msi.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function MsiConfigureProductA(
    <MarshalAs(UnmanagedType.LPStr)> szProduct As String,   ' LPCSTR
    iInstallLevel As Integer,   ' INSTALLLEVEL
    eInstallState As Integer   ' INSTALLSTATE
) As UInteger
End Function

' szProduct : LPCSTR
' iInstallLevel : INSTALLLEVEL
' eInstallState : INSTALLSTATE
Declare PtrSafe Function MsiConfigureProductA Lib "msi" ( _
    ByVal szProduct As String, _
    ByVal iInstallLevel As Long, _
    ByVal eInstallState 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

MsiConfigureProductA = ctypes.windll.msi.MsiConfigureProductA
MsiConfigureProductA.restype = wintypes.DWORD
MsiConfigureProductA.argtypes = [
    wintypes.LPCSTR,  # szProduct : LPCSTR
    ctypes.c_int,  # iInstallLevel : INSTALLLEVEL
    ctypes.c_int,  # eInstallState : INSTALLSTATE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiConfigureProductA = Fiddle::Function.new(
  lib['MsiConfigureProductA'],
  [
    Fiddle::TYPE_VOIDP,  # szProduct : LPCSTR
    Fiddle::TYPE_INT,  # iInstallLevel : INSTALLLEVEL
    Fiddle::TYPE_INT,  # eInstallState : INSTALLSTATE
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiConfigureProductA(
        szProduct: *const u8,  // LPCSTR
        iInstallLevel: i32,  // INSTALLLEVEL
        eInstallState: i32  // INSTALLSTATE
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Ansi)]
public static extern uint MsiConfigureProductA([MarshalAs(UnmanagedType.LPStr)] string szProduct, int iInstallLevel, int eInstallState);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiConfigureProductA' -Namespace Win32 -PassThru
# $api::MsiConfigureProductA(szProduct, iInstallLevel, eInstallState)

#uselib "msi.dll"
#func global MsiConfigureProductA "MsiConfigureProductA" sptr, sptr, sptr
; MsiConfigureProductA szProduct, iInstallLevel, eInstallState   ; 戻り値は stat
; szProduct : LPCSTR -> "sptr"
; iInstallLevel : INSTALLLEVEL -> "sptr"
; eInstallState : INSTALLSTATE -> "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 "msi.dll"
#cfunc global MsiConfigureProductA "MsiConfigureProductA" str, int, int
; res = MsiConfigureProductA(szProduct, iInstallLevel, eInstallState)
; szProduct : LPCSTR -> "str"
; iInstallLevel : INSTALLLEVEL -> "int"
; eInstallState : INSTALLSTATE -> "int"

; DWORD MsiConfigureProductA(LPCSTR szProduct, INSTALLLEVEL iInstallLevel, INSTALLSTATE eInstallState)
#uselib "msi.dll"
#cfunc global MsiConfigureProductA "MsiConfigureProductA" str, int, int
; res = MsiConfigureProductA(szProduct, iInstallLevel, eInstallState)
; szProduct : LPCSTR -> "str"
; iInstallLevel : INSTALLLEVEL -> "int"
; eInstallState : INSTALLSTATE -> "int"

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiConfigureProductA = msi.NewProc("MsiConfigureProductA")
)

// szProduct (LPCSTR), iInstallLevel (INSTALLLEVEL), eInstallState (INSTALLSTATE)
r1, _, err := procMsiConfigureProductA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szProduct))),
	uintptr(iInstallLevel),
	uintptr(eInstallState),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiConfigureProductA(
  szProduct: PAnsiChar;   // LPCSTR
  iInstallLevel: Integer;   // INSTALLLEVEL
  eInstallState: Integer   // INSTALLSTATE
): DWORD; stdcall;
  external 'msi.dll' name 'MsiConfigureProductA';

result := DllCall("msi\MsiConfigureProductA"
    , "AStr", szProduct   ; LPCSTR
    , "Int", iInstallLevel   ; INSTALLLEVEL
    , "Int", eInstallState   ; INSTALLSTATE
    , "UInt")   ; return: DWORD

●MsiConfigureProductA(szProduct, iInstallLevel, eInstallState) = DLL("msi.dll", "dword MsiConfigureProductA(char*, int, int)")
# 呼び出し: MsiConfigureProductA(szProduct, iInstallLevel, eInstallState)
# szProduct : LPCSTR -> "char*"
# iInstallLevel : INSTALLLEVEL -> "int"
# eInstallState : INSTALLSTATE -> "int"
# 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)。