MsiGetMode

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

BOOL MsiGetMode(
    MSIHANDLE hInstall,
    MSIRUNMODE eRunMode
);

<DllImport("msi.dll", ExactSpelling:=True)>
Public Shared Function MsiGetMode(
    hInstall As UInteger,   ' MSIHANDLE
    eRunMode As Integer   ' MSIRUNMODE
) As Boolean
End Function

' hInstall : MSIHANDLE
' eRunMode : MSIRUNMODE
Declare PtrSafe Function MsiGetMode Lib "msi" ( _
    ByVal hInstall As Long, _
    ByVal eRunMode 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

MsiGetMode = ctypes.windll.msi.MsiGetMode
MsiGetMode.restype = wintypes.BOOL
MsiGetMode.argtypes = [
    wintypes.DWORD,  # hInstall : MSIHANDLE
    ctypes.c_int,  # eRunMode : MSIRUNMODE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiGetMode = Fiddle::Function.new(
  lib['MsiGetMode'],
  [
    -Fiddle::TYPE_INT,  # hInstall : MSIHANDLE
    Fiddle::TYPE_INT,  # eRunMode : MSIRUNMODE
  ],
  Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiGetMode(
        hInstall: u32,  // MSIHANDLE
        eRunMode: i32  // MSIRUNMODE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msi.dll")]
public static extern bool MsiGetMode(uint hInstall, int eRunMode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiGetMode' -Namespace Win32 -PassThru
# $api::MsiGetMode(hInstall, eRunMode)

#uselib "msi.dll"
#func global MsiGetMode "MsiGetMode" sptr, sptr
; MsiGetMode hInstall, eRunMode   ; 戻り値は stat
; hInstall : MSIHANDLE -> "sptr"
; eRunMode : MSIRUNMODE -> "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 MsiGetMode "MsiGetMode" int, int
; res = MsiGetMode(hInstall, eRunMode)
; hInstall : MSIHANDLE -> "int"
; eRunMode : MSIRUNMODE -> "int"

; BOOL MsiGetMode(MSIHANDLE hInstall, MSIRUNMODE eRunMode)
#uselib "msi.dll"
#cfunc global MsiGetMode "MsiGetMode" int, int
; res = MsiGetMode(hInstall, eRunMode)
; hInstall : MSIHANDLE -> "int"
; eRunMode : MSIRUNMODE -> "int"

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiGetMode = msi.NewProc("MsiGetMode")
)

// hInstall (MSIHANDLE), eRunMode (MSIRUNMODE)
r1, _, err := procMsiGetMode.Call(
	uintptr(hInstall),
	uintptr(eRunMode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function MsiGetMode(
  hInstall: DWORD;   // MSIHANDLE
  eRunMode: Integer   // MSIRUNMODE
): BOOL; stdcall;
  external 'msi.dll' name 'MsiGetMode';

result := DllCall("msi\MsiGetMode"
    , "UInt", hInstall   ; MSIHANDLE
    , "Int", eRunMode   ; MSIRUNMODE
    , "Int")   ; return: BOOL

●MsiGetMode(hInstall, eRunMode) = DLL("msi.dll", "bool MsiGetMode(dword, int)")
# 呼び出し: MsiGetMode(hInstall, eRunMode)
# hInstall : MSIHANDLE -> "dword"
# eRunMode : MSIRUNMODE -> "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)。