MsiGetSummaryInformationA

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

DWORD MsiGetSummaryInformationA(
    MSIHANDLE hDatabase,
    LPCSTR szDatabasePath,
    DWORD uiUpdateCount,
    MSIHANDLE* phSummaryInfo
);

<DllImport("msi.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function MsiGetSummaryInformationA(
    hDatabase As UInteger,   ' MSIHANDLE
    <MarshalAs(UnmanagedType.LPStr)> szDatabasePath As String,   ' LPCSTR
    uiUpdateCount As UInteger,   ' DWORD
    ByRef phSummaryInfo As UInteger   ' MSIHANDLE* in/out
) As UInteger
End Function

' hDatabase : MSIHANDLE
' szDatabasePath : LPCSTR
' uiUpdateCount : DWORD
' phSummaryInfo : MSIHANDLE* in/out
Declare PtrSafe Function MsiGetSummaryInformationA Lib "msi" ( _
    ByVal hDatabase As Long, _
    ByVal szDatabasePath As String, _
    ByVal uiUpdateCount As Long, _
    ByRef phSummaryInfo 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

MsiGetSummaryInformationA = ctypes.windll.msi.MsiGetSummaryInformationA
MsiGetSummaryInformationA.restype = wintypes.DWORD
MsiGetSummaryInformationA.argtypes = [
    wintypes.DWORD,  # hDatabase : MSIHANDLE
    wintypes.LPCSTR,  # szDatabasePath : LPCSTR
    wintypes.DWORD,  # uiUpdateCount : DWORD
    ctypes.c_void_p,  # phSummaryInfo : MSIHANDLE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiGetSummaryInformationA = Fiddle::Function.new(
  lib['MsiGetSummaryInformationA'],
  [
    -Fiddle::TYPE_INT,  # hDatabase : MSIHANDLE
    Fiddle::TYPE_VOIDP,  # szDatabasePath : LPCSTR
    -Fiddle::TYPE_INT,  # uiUpdateCount : DWORD
    Fiddle::TYPE_VOIDP,  # phSummaryInfo : MSIHANDLE* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiGetSummaryInformationA(
        hDatabase: u32,  // MSIHANDLE
        szDatabasePath: *const u8,  // LPCSTR
        uiUpdateCount: u32,  // DWORD
        phSummaryInfo: *mut u32  // MSIHANDLE* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Ansi)]
public static extern uint MsiGetSummaryInformationA(uint hDatabase, [MarshalAs(UnmanagedType.LPStr)] string szDatabasePath, uint uiUpdateCount, ref uint phSummaryInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiGetSummaryInformationA' -Namespace Win32 -PassThru
# $api::MsiGetSummaryInformationA(hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo)

#uselib "msi.dll"
#func global MsiGetSummaryInformationA "MsiGetSummaryInformationA" sptr, sptr, sptr, sptr
; MsiGetSummaryInformationA hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo   ; 戻り値は stat
; hDatabase : MSIHANDLE -> "sptr"
; szDatabasePath : LPCSTR -> "sptr"
; uiUpdateCount : DWORD -> "sptr"
; phSummaryInfo : MSIHANDLE* in/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 "msi.dll"
#cfunc global MsiGetSummaryInformationA "MsiGetSummaryInformationA" int, str, int, int
; res = MsiGetSummaryInformationA(hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo)
; hDatabase : MSIHANDLE -> "int"
; szDatabasePath : LPCSTR -> "str"
; uiUpdateCount : DWORD -> "int"
; phSummaryInfo : MSIHANDLE* in/out -> "int"

; DWORD MsiGetSummaryInformationA(MSIHANDLE hDatabase, LPCSTR szDatabasePath, DWORD uiUpdateCount, MSIHANDLE* phSummaryInfo)
#uselib "msi.dll"
#cfunc global MsiGetSummaryInformationA "MsiGetSummaryInformationA" int, str, int, int
; res = MsiGetSummaryInformationA(hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo)
; hDatabase : MSIHANDLE -> "int"
; szDatabasePath : LPCSTR -> "str"
; uiUpdateCount : DWORD -> "int"
; phSummaryInfo : MSIHANDLE* in/out -> "int"

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiGetSummaryInformationA = msi.NewProc("MsiGetSummaryInformationA")
)

// hDatabase (MSIHANDLE), szDatabasePath (LPCSTR), uiUpdateCount (DWORD), phSummaryInfo (MSIHANDLE* in/out)
r1, _, err := procMsiGetSummaryInformationA.Call(
	uintptr(hDatabase),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szDatabasePath))),
	uintptr(uiUpdateCount),
	uintptr(phSummaryInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiGetSummaryInformationA(
  hDatabase: DWORD;   // MSIHANDLE
  szDatabasePath: PAnsiChar;   // LPCSTR
  uiUpdateCount: DWORD;   // DWORD
  phSummaryInfo: Pointer   // MSIHANDLE* in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiGetSummaryInformationA';

result := DllCall("msi\MsiGetSummaryInformationA"
    , "UInt", hDatabase   ; MSIHANDLE
    , "AStr", szDatabasePath   ; LPCSTR
    , "UInt", uiUpdateCount   ; DWORD
    , "Ptr", phSummaryInfo   ; MSIHANDLE* in/out
    , "UInt")   ; return: DWORD

●MsiGetSummaryInformationA(hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo) = DLL("msi.dll", "dword MsiGetSummaryInformationA(dword, char*, dword, void*)")
# 呼び出し: MsiGetSummaryInformationA(hDatabase, szDatabasePath, uiUpdateCount, phSummaryInfo)
# hDatabase : MSIHANDLE -> "dword"
# szDatabasePath : LPCSTR -> "char*"
# uiUpdateCount : DWORD -> "dword"
# phSummaryInfo : MSIHANDLE* 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)。