MsiSummaryInfoGetPropertyCount

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

DWORD MsiSummaryInfoGetPropertyCount(
    MSIHANDLE hSummaryInfo,
    DWORD* puiPropertyCount
);

<DllImport("msi.dll", ExactSpelling:=True)>
Public Shared Function MsiSummaryInfoGetPropertyCount(
    hSummaryInfo As UInteger,   ' MSIHANDLE
    ByRef puiPropertyCount As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hSummaryInfo : MSIHANDLE
' puiPropertyCount : DWORD* in/out
Declare PtrSafe Function MsiSummaryInfoGetPropertyCount Lib "msi" ( _
    ByVal hSummaryInfo As Long, _
    ByRef puiPropertyCount 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

MsiSummaryInfoGetPropertyCount = ctypes.windll.msi.MsiSummaryInfoGetPropertyCount
MsiSummaryInfoGetPropertyCount.restype = wintypes.DWORD
MsiSummaryInfoGetPropertyCount.argtypes = [
    wintypes.DWORD,  # hSummaryInfo : MSIHANDLE
    ctypes.POINTER(wintypes.DWORD),  # puiPropertyCount : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiSummaryInfoGetPropertyCount = Fiddle::Function.new(
  lib['MsiSummaryInfoGetPropertyCount'],
  [
    -Fiddle::TYPE_INT,  # hSummaryInfo : MSIHANDLE
    Fiddle::TYPE_VOIDP,  # puiPropertyCount : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiSummaryInfoGetPropertyCount(
        hSummaryInfo: u32,  // MSIHANDLE
        puiPropertyCount: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll")]
public static extern uint MsiSummaryInfoGetPropertyCount(uint hSummaryInfo, ref uint puiPropertyCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiSummaryInfoGetPropertyCount' -Namespace Win32 -PassThru
# $api::MsiSummaryInfoGetPropertyCount(hSummaryInfo, puiPropertyCount)

#uselib "msi.dll"
#func global MsiSummaryInfoGetPropertyCount "MsiSummaryInfoGetPropertyCount" sptr, sptr
; MsiSummaryInfoGetPropertyCount hSummaryInfo, varptr(puiPropertyCount)   ; 戻り値は stat
; hSummaryInfo : MSIHANDLE -> "sptr"
; puiPropertyCount : DWORD* 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 MsiSummaryInfoGetPropertyCount "MsiSummaryInfoGetPropertyCount" int, var
; res = MsiSummaryInfoGetPropertyCount(hSummaryInfo, puiPropertyCount)
; hSummaryInfo : MSIHANDLE -> "int"
; puiPropertyCount : DWORD* 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 MsiSummaryInfoGetPropertyCount(MSIHANDLE hSummaryInfo, DWORD* puiPropertyCount)
#uselib "msi.dll"
#cfunc global MsiSummaryInfoGetPropertyCount "MsiSummaryInfoGetPropertyCount" int, var
; res = MsiSummaryInfoGetPropertyCount(hSummaryInfo, puiPropertyCount)
; hSummaryInfo : MSIHANDLE -> "int"
; puiPropertyCount : DWORD* 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")
	procMsiSummaryInfoGetPropertyCount = msi.NewProc("MsiSummaryInfoGetPropertyCount")
)

// hSummaryInfo (MSIHANDLE), puiPropertyCount (DWORD* in/out)
r1, _, err := procMsiSummaryInfoGetPropertyCount.Call(
	uintptr(hSummaryInfo),
	uintptr(puiPropertyCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiSummaryInfoGetPropertyCount(
  hSummaryInfo: DWORD;   // MSIHANDLE
  puiPropertyCount: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiSummaryInfoGetPropertyCount';

result := DllCall("msi\MsiSummaryInfoGetPropertyCount"
    , "UInt", hSummaryInfo   ; MSIHANDLE
    , "Ptr", puiPropertyCount   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●MsiSummaryInfoGetPropertyCount(hSummaryInfo, puiPropertyCount) = DLL("msi.dll", "dword MsiSummaryInfoGetPropertyCount(dword, void*)")
# 呼び出し: MsiSummaryInfoGetPropertyCount(hSummaryInfo, puiPropertyCount)
# hSummaryInfo : MSIHANDLE -> "dword"
# puiPropertyCount : DWORD* 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)。