SetupGetFileCompressionInfoA

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

DWORD SetupGetFileCompressionInfoA(
    LPCSTR SourceFileName,
    LPSTR* ActualSourceFileName,
    DWORD* SourceFileSize,
    DWORD* TargetFileSize,
    FILE_COMPRESSION_TYPE* CompressionType
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupGetFileCompressionInfoA(
    <MarshalAs(UnmanagedType.LPStr)> SourceFileName As String,   ' LPCSTR
    ActualSourceFileName As IntPtr,   ' LPSTR* out
    <Out> ByRef SourceFileSize As UInteger,   ' DWORD* out
    <Out> ByRef TargetFileSize As UInteger,   ' DWORD* out
    <Out> ByRef CompressionType As UInteger   ' FILE_COMPRESSION_TYPE* out
) As UInteger
End Function

' SourceFileName : LPCSTR
' ActualSourceFileName : LPSTR* out
' SourceFileSize : DWORD* out
' TargetFileSize : DWORD* out
' CompressionType : FILE_COMPRESSION_TYPE* out
Declare PtrSafe Function SetupGetFileCompressionInfoA Lib "setupapi" ( _
    ByVal SourceFileName As String, _
    ByVal ActualSourceFileName As LongPtr, _
    ByRef SourceFileSize As Long, _
    ByRef TargetFileSize As Long, _
    ByRef CompressionType 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

SetupGetFileCompressionInfoA = ctypes.windll.setupapi.SetupGetFileCompressionInfoA
SetupGetFileCompressionInfoA.restype = wintypes.DWORD
SetupGetFileCompressionInfoA.argtypes = [
    wintypes.LPCSTR,  # SourceFileName : LPCSTR
    ctypes.c_void_p,  # ActualSourceFileName : LPSTR* out
    ctypes.POINTER(wintypes.DWORD),  # SourceFileSize : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # TargetFileSize : DWORD* out
    ctypes.c_void_p,  # CompressionType : FILE_COMPRESSION_TYPE* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupGetFileCompressionInfoA = Fiddle::Function.new(
  lib['SetupGetFileCompressionInfoA'],
  [
    Fiddle::TYPE_VOIDP,  # SourceFileName : LPCSTR
    Fiddle::TYPE_VOIDP,  # ActualSourceFileName : LPSTR* out
    Fiddle::TYPE_VOIDP,  # SourceFileSize : DWORD* out
    Fiddle::TYPE_VOIDP,  # TargetFileSize : DWORD* out
    Fiddle::TYPE_VOIDP,  # CompressionType : FILE_COMPRESSION_TYPE* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "setupapi")]
extern "system" {
    fn SetupGetFileCompressionInfoA(
        SourceFileName: *const u8,  // LPCSTR
        ActualSourceFileName: *mut *mut u8,  // LPSTR* out
        SourceFileSize: *mut u32,  // DWORD* out
        TargetFileSize: *mut u32,  // DWORD* out
        CompressionType: *mut u32  // FILE_COMPRESSION_TYPE* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SETUPAPI.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern uint SetupGetFileCompressionInfoA([MarshalAs(UnmanagedType.LPStr)] string SourceFileName, IntPtr ActualSourceFileName, out uint SourceFileSize, out uint TargetFileSize, out uint CompressionType);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupGetFileCompressionInfoA' -Namespace Win32 -PassThru
# $api::SetupGetFileCompressionInfoA(SourceFileName, ActualSourceFileName, SourceFileSize, TargetFileSize, CompressionType)

#uselib "SETUPAPI.dll"
#func global SetupGetFileCompressionInfoA "SetupGetFileCompressionInfoA" sptr, sptr, sptr, sptr, sptr
; SetupGetFileCompressionInfoA SourceFileName, varptr(ActualSourceFileName), varptr(SourceFileSize), varptr(TargetFileSize), CompressionType   ; 戻り値は stat
; SourceFileName : LPCSTR -> "sptr"
; ActualSourceFileName : LPSTR* out -> "sptr"
; SourceFileSize : DWORD* out -> "sptr"
; TargetFileSize : DWORD* out -> "sptr"
; CompressionType : FILE_COMPRESSION_TYPE* 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 "SETUPAPI.dll"
#cfunc global SetupGetFileCompressionInfoA "SetupGetFileCompressionInfoA" str, var, var, var, int
; res = SetupGetFileCompressionInfoA(SourceFileName, ActualSourceFileName, SourceFileSize, TargetFileSize, CompressionType)
; SourceFileName : LPCSTR -> "str"
; ActualSourceFileName : LPSTR* out -> "var"
; SourceFileSize : DWORD* out -> "var"
; TargetFileSize : DWORD* out -> "var"
; CompressionType : FILE_COMPRESSION_TYPE* out -> "int"
; ※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 SetupGetFileCompressionInfoA(LPCSTR SourceFileName, LPSTR* ActualSourceFileName, DWORD* SourceFileSize, DWORD* TargetFileSize, FILE_COMPRESSION_TYPE* CompressionType)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetFileCompressionInfoA "SetupGetFileCompressionInfoA" str, var, var, var, int
; res = SetupGetFileCompressionInfoA(SourceFileName, ActualSourceFileName, SourceFileSize, TargetFileSize, CompressionType)
; SourceFileName : LPCSTR -> "str"
; ActualSourceFileName : LPSTR* out -> "var"
; SourceFileSize : DWORD* out -> "var"
; TargetFileSize : DWORD* out -> "var"
; CompressionType : FILE_COMPRESSION_TYPE* out -> "int"
; ※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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupGetFileCompressionInfoA = setupapi.NewProc("SetupGetFileCompressionInfoA")
)

// SourceFileName (LPCSTR), ActualSourceFileName (LPSTR* out), SourceFileSize (DWORD* out), TargetFileSize (DWORD* out), CompressionType (FILE_COMPRESSION_TYPE* out)
r1, _, err := procSetupGetFileCompressionInfoA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(SourceFileName))),
	uintptr(ActualSourceFileName),
	uintptr(SourceFileSize),
	uintptr(TargetFileSize),
	uintptr(CompressionType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SetupGetFileCompressionInfoA(
  SourceFileName: PAnsiChar;   // LPCSTR
  ActualSourceFileName: PPAnsiChar;   // LPSTR* out
  SourceFileSize: Pointer;   // DWORD* out
  TargetFileSize: Pointer;   // DWORD* out
  CompressionType: Pointer   // FILE_COMPRESSION_TYPE* out
): DWORD; stdcall;
  external 'SETUPAPI.dll' name 'SetupGetFileCompressionInfoA';

result := DllCall("SETUPAPI\SetupGetFileCompressionInfoA"
    , "AStr", SourceFileName   ; LPCSTR
    , "Ptr", ActualSourceFileName   ; LPSTR* out
    , "Ptr", SourceFileSize   ; DWORD* out
    , "Ptr", TargetFileSize   ; DWORD* out
    , "Ptr", CompressionType   ; FILE_COMPRESSION_TYPE* out
    , "UInt")   ; return: DWORD

●SetupGetFileCompressionInfoA(SourceFileName, ActualSourceFileName, SourceFileSize, TargetFileSize, CompressionType) = DLL("SETUPAPI.dll", "dword SetupGetFileCompressionInfoA(char*, void*, void*, void*, void*)")
# 呼び出し: SetupGetFileCompressionInfoA(SourceFileName, ActualSourceFileName, SourceFileSize, TargetFileSize, CompressionType)
# SourceFileName : LPCSTR -> "char*"
# ActualSourceFileName : LPSTR* out -> "void*"
# SourceFileSize : DWORD* out -> "void*"
# TargetFileSize : DWORD* out -> "void*"
# CompressionType : FILE_COMPRESSION_TYPE* 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)。