MsiSummaryInfoGetPropertyW

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

DWORD MsiSummaryInfoGetPropertyW(
    MSIHANDLE hSummaryInfo,
    DWORD uiProperty,
    DWORD* puiDataType,
    INT* piValue,
    FILETIME* pftValue,   // optional
    LPWSTR szValueBuf,   // optional
    DWORD* pcchValueBuf   // optional
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiSummaryInfoGetPropertyW(
    hSummaryInfo As UInteger,   ' MSIHANDLE
    uiProperty As UInteger,   ' DWORD
    <Out> ByRef puiDataType As UInteger,   ' DWORD* out
    <Out> ByRef piValue As Integer,   ' INT* out
    pftValue As IntPtr,   ' FILETIME* optional, out
    <MarshalAs(UnmanagedType.LPWStr)> szValueBuf As System.Text.StringBuilder,   ' LPWSTR optional, out
    pcchValueBuf As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' hSummaryInfo : MSIHANDLE
' uiProperty : DWORD
' puiDataType : DWORD* out
' piValue : INT* out
' pftValue : FILETIME* optional, out
' szValueBuf : LPWSTR optional, out
' pcchValueBuf : DWORD* optional, in/out
Declare PtrSafe Function MsiSummaryInfoGetPropertyW Lib "msi" ( _
    ByVal hSummaryInfo As Long, _
    ByVal uiProperty As Long, _
    ByRef puiDataType As Long, _
    ByRef piValue As Long, _
    ByVal pftValue As LongPtr, _
    ByVal szValueBuf As LongPtr, _
    ByVal pcchValueBuf 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

MsiSummaryInfoGetPropertyW = ctypes.windll.msi.MsiSummaryInfoGetPropertyW
MsiSummaryInfoGetPropertyW.restype = wintypes.DWORD
MsiSummaryInfoGetPropertyW.argtypes = [
    wintypes.DWORD,  # hSummaryInfo : MSIHANDLE
    wintypes.DWORD,  # uiProperty : DWORD
    ctypes.POINTER(wintypes.DWORD),  # puiDataType : DWORD* out
    ctypes.POINTER(ctypes.c_int),  # piValue : INT* out
    ctypes.c_void_p,  # pftValue : FILETIME* optional, out
    wintypes.LPWSTR,  # szValueBuf : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchValueBuf : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiSummaryInfoGetPropertyW = Fiddle::Function.new(
  lib['MsiSummaryInfoGetPropertyW'],
  [
    -Fiddle::TYPE_INT,  # hSummaryInfo : MSIHANDLE
    -Fiddle::TYPE_INT,  # uiProperty : DWORD
    Fiddle::TYPE_VOIDP,  # puiDataType : DWORD* out
    Fiddle::TYPE_VOIDP,  # piValue : INT* out
    Fiddle::TYPE_VOIDP,  # pftValue : FILETIME* optional, out
    Fiddle::TYPE_VOIDP,  # szValueBuf : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchValueBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiSummaryInfoGetPropertyW(
        hSummaryInfo: u32,  // MSIHANDLE
        uiProperty: u32,  // DWORD
        puiDataType: *mut u32,  // DWORD* out
        piValue: *mut i32,  // INT* out
        pftValue: *mut FILETIME,  // FILETIME* optional, out
        szValueBuf: *mut u16,  // LPWSTR optional, out
        pcchValueBuf: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern uint MsiSummaryInfoGetPropertyW(uint hSummaryInfo, uint uiProperty, out uint puiDataType, out int piValue, IntPtr pftValue, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder szValueBuf, IntPtr pcchValueBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiSummaryInfoGetPropertyW' -Namespace Win32 -PassThru
# $api::MsiSummaryInfoGetPropertyW(hSummaryInfo, uiProperty, puiDataType, piValue, pftValue, szValueBuf, pcchValueBuf)

#uselib "msi.dll"
#func global MsiSummaryInfoGetPropertyW "MsiSummaryInfoGetPropertyW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; MsiSummaryInfoGetPropertyW hSummaryInfo, uiProperty, varptr(puiDataType), varptr(piValue), varptr(pftValue), varptr(szValueBuf), varptr(pcchValueBuf)   ; 戻り値は stat
; hSummaryInfo : MSIHANDLE -> "wptr"
; uiProperty : DWORD -> "wptr"
; puiDataType : DWORD* out -> "wptr"
; piValue : INT* out -> "wptr"
; pftValue : FILETIME* optional, out -> "wptr"
; szValueBuf : LPWSTR optional, out -> "wptr"
; pcchValueBuf : DWORD* optional, in/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 MsiSummaryInfoGetPropertyW "MsiSummaryInfoGetPropertyW" int, int, var, var, var, var, var
; res = MsiSummaryInfoGetPropertyW(hSummaryInfo, uiProperty, puiDataType, piValue, pftValue, szValueBuf, pcchValueBuf)
; hSummaryInfo : MSIHANDLE -> "int"
; uiProperty : DWORD -> "int"
; puiDataType : DWORD* out -> "var"
; piValue : INT* out -> "var"
; pftValue : FILETIME* optional, out -> "var"
; szValueBuf : LPWSTR optional, out -> "var"
; pcchValueBuf : DWORD* optional, in/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。

; DWORD MsiSummaryInfoGetPropertyW(MSIHANDLE hSummaryInfo, DWORD uiProperty, DWORD* puiDataType, INT* piValue, FILETIME* pftValue, LPWSTR szValueBuf, DWORD* pcchValueBuf)
#uselib "msi.dll"
#cfunc global MsiSummaryInfoGetPropertyW "MsiSummaryInfoGetPropertyW" int, int, var, var, var, var, var
; res = MsiSummaryInfoGetPropertyW(hSummaryInfo, uiProperty, puiDataType, piValue, pftValue, szValueBuf, pcchValueBuf)
; hSummaryInfo : MSIHANDLE -> "int"
; uiProperty : DWORD -> "int"
; puiDataType : DWORD* out -> "var"
; piValue : INT* out -> "var"
; pftValue : FILETIME* optional, out -> "var"
; szValueBuf : LPWSTR optional, out -> "var"
; pcchValueBuf : DWORD* optional, in/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 (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiSummaryInfoGetPropertyW = msi.NewProc("MsiSummaryInfoGetPropertyW")
)

// hSummaryInfo (MSIHANDLE), uiProperty (DWORD), puiDataType (DWORD* out), piValue (INT* out), pftValue (FILETIME* optional, out), szValueBuf (LPWSTR optional, out), pcchValueBuf (DWORD* optional, in/out)
r1, _, err := procMsiSummaryInfoGetPropertyW.Call(
	uintptr(hSummaryInfo),
	uintptr(uiProperty),
	uintptr(puiDataType),
	uintptr(piValue),
	uintptr(pftValue),
	uintptr(szValueBuf),
	uintptr(pcchValueBuf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiSummaryInfoGetPropertyW(
  hSummaryInfo: DWORD;   // MSIHANDLE
  uiProperty: DWORD;   // DWORD
  puiDataType: Pointer;   // DWORD* out
  piValue: Pointer;   // INT* out
  pftValue: Pointer;   // FILETIME* optional, out
  szValueBuf: PWideChar;   // LPWSTR optional, out
  pcchValueBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiSummaryInfoGetPropertyW';

result := DllCall("msi\MsiSummaryInfoGetPropertyW"
    , "UInt", hSummaryInfo   ; MSIHANDLE
    , "UInt", uiProperty   ; DWORD
    , "Ptr", puiDataType   ; DWORD* out
    , "Ptr", piValue   ; INT* out
    , "Ptr", pftValue   ; FILETIME* optional, out
    , "Ptr", szValueBuf   ; LPWSTR optional, out
    , "Ptr", pcchValueBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiSummaryInfoGetPropertyW(hSummaryInfo, uiProperty, puiDataType, piValue, pftValue, szValueBuf, pcchValueBuf) = DLL("msi.dll", "dword MsiSummaryInfoGetPropertyW(dword, dword, void*, void*, void*, char*, void*)")
# 呼び出し: MsiSummaryInfoGetPropertyW(hSummaryInfo, uiProperty, puiDataType, piValue, pftValue, szValueBuf, pcchValueBuf)
# hSummaryInfo : MSIHANDLE -> "dword"
# uiProperty : DWORD -> "dword"
# puiDataType : DWORD* out -> "void*"
# piValue : INT* out -> "void*"
# pftValue : FILETIME* optional, out -> "void*"
# szValueBuf : LPWSTR optional, out -> "char*"
# pcchValueBuf : DWORD* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。