VarUI4FromCy

// OLEAUT32.dll
#include <windows.h>

HRESULT VarUI4FromCy(
    CY cyIn,
    DWORD* pulOut
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarUI4FromCy(
    cyIn As CY,   ' CY
    <Out> ByRef pulOut As UInteger   ' DWORD* out
) As Integer
End Function

' cyIn : CY
' pulOut : DWORD* out
Declare PtrSafe Function VarUI4FromCy Lib "oleaut32" ( _
    ByVal cyIn As LongPtr, _
    ByRef pulOut 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

VarUI4FromCy = ctypes.windll.oleaut32.VarUI4FromCy
VarUI4FromCy.restype = ctypes.c_int
VarUI4FromCy.argtypes = [
    CY,  # cyIn : CY
    ctypes.POINTER(wintypes.DWORD),  # pulOut : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarUI4FromCy = Fiddle::Function.new(
  lib['VarUI4FromCy'],
  [
    Fiddle::TYPE_VOIDP,  # cyIn : CY
    Fiddle::TYPE_VOIDP,  # pulOut : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarUI4FromCy(
        cyIn: CY,  // CY
        pulOut: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarUI4FromCy(CY cyIn, out uint pulOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarUI4FromCy' -Namespace Win32 -PassThru
# $api::VarUI4FromCy(cyIn, pulOut)

#uselib "OLEAUT32.dll"
#func global VarUI4FromCy "VarUI4FromCy" sptr, sptr
; VarUI4FromCy cyIn, varptr(pulOut)   ; 戻り値は stat
; cyIn : CY -> "sptr"
; pulOut : DWORD* out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "OLEAUT32.dll"
#cfunc global VarUI4FromCy "VarUI4FromCy" int, var
; res = VarUI4FromCy(cyIn, pulOut)
; cyIn : CY -> "int"
; pulOut : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。

; HRESULT VarUI4FromCy(CY cyIn, DWORD* pulOut)
#uselib "OLEAUT32.dll"
#cfunc global VarUI4FromCy "VarUI4FromCy" int, var
; res = VarUI4FromCy(cyIn, pulOut)
; cyIn : CY -> "int"
; pulOut : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVarUI4FromCy = oleaut32.NewProc("VarUI4FromCy")
)

// cyIn (CY), pulOut (DWORD* out)
r1, _, err := procVarUI4FromCy.Call(
	uintptr(cyIn),
	uintptr(pulOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarUI4FromCy(
  cyIn: CY;   // CY
  pulOut: Pointer   // DWORD* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarUI4FromCy';

result := DllCall("OLEAUT32\VarUI4FromCy"
    , "Ptr", cyIn   ; CY
    , "Ptr", pulOut   ; DWORD* out
    , "Int")   ; return: HRESULT

●VarUI4FromCy(cyIn, pulOut) = DLL("OLEAUT32.dll", "int VarUI4FromCy(void*, void*)")
# 呼び出し: VarUI4FromCy(cyIn, pulOut)
# cyIn : CY -> "void*"
# pulOut : DWORD* 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)。