FilterSendMessage

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

HRESULT FilterSendMessage(
    HANDLE hPort,
    void* lpInBuffer,
    DWORD dwInBufferSize,
    void* lpOutBuffer,   // optional
    DWORD dwOutBufferSize,
    DWORD* lpBytesReturned
);

<DllImport("FLTLIB.dll", ExactSpelling:=True)>
Public Shared Function FilterSendMessage(
    hPort As IntPtr,   ' HANDLE
    lpInBuffer As IntPtr,   ' void*
    dwInBufferSize As UInteger,   ' DWORD
    lpOutBuffer As IntPtr,   ' void* optional, out
    dwOutBufferSize As UInteger,   ' DWORD
    <Out> ByRef lpBytesReturned As UInteger   ' DWORD* out
) As Integer
End Function

' hPort : HANDLE
' lpInBuffer : void*
' dwInBufferSize : DWORD
' lpOutBuffer : void* optional, out
' dwOutBufferSize : DWORD
' lpBytesReturned : DWORD* out
Declare PtrSafe Function FilterSendMessage Lib "fltlib" ( _
    ByVal hPort As LongPtr, _
    ByVal lpInBuffer As LongPtr, _
    ByVal dwInBufferSize As Long, _
    ByVal lpOutBuffer As LongPtr, _
    ByVal dwOutBufferSize As Long, _
    ByRef lpBytesReturned 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

FilterSendMessage = ctypes.windll.fltlib.FilterSendMessage
FilterSendMessage.restype = ctypes.c_int
FilterSendMessage.argtypes = [
    wintypes.HANDLE,  # hPort : HANDLE
    ctypes.POINTER(None),  # lpInBuffer : void*
    wintypes.DWORD,  # dwInBufferSize : DWORD
    ctypes.POINTER(None),  # lpOutBuffer : void* optional, out
    wintypes.DWORD,  # dwOutBufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpBytesReturned : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('FLTLIB.dll')
FilterSendMessage = Fiddle::Function.new(
  lib['FilterSendMessage'],
  [
    Fiddle::TYPE_VOIDP,  # hPort : HANDLE
    Fiddle::TYPE_VOIDP,  # lpInBuffer : void*
    -Fiddle::TYPE_INT,  # dwInBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpOutBuffer : void* optional, out
    -Fiddle::TYPE_INT,  # dwOutBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpBytesReturned : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "fltlib")]
extern "system" {
    fn FilterSendMessage(
        hPort: *mut core::ffi::c_void,  // HANDLE
        lpInBuffer: *mut (),  // void*
        dwInBufferSize: u32,  // DWORD
        lpOutBuffer: *mut (),  // void* optional, out
        dwOutBufferSize: u32,  // DWORD
        lpBytesReturned: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("FLTLIB.dll")]
public static extern int FilterSendMessage(IntPtr hPort, IntPtr lpInBuffer, uint dwInBufferSize, IntPtr lpOutBuffer, uint dwOutBufferSize, out uint lpBytesReturned);
"@
$api = Add-Type -MemberDefinition $sig -Name 'FLTLIB_FilterSendMessage' -Namespace Win32 -PassThru
# $api::FilterSendMessage(hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, lpBytesReturned)

#uselib "FLTLIB.dll"
#func global FilterSendMessage "FilterSendMessage" sptr, sptr, sptr, sptr, sptr, sptr
; FilterSendMessage hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, varptr(lpBytesReturned)   ; 戻り値は stat
; hPort : HANDLE -> "sptr"
; lpInBuffer : void* -> "sptr"
; dwInBufferSize : DWORD -> "sptr"
; lpOutBuffer : void* optional, out -> "sptr"
; dwOutBufferSize : DWORD -> "sptr"
; lpBytesReturned : DWORD* 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 "FLTLIB.dll"
#cfunc global FilterSendMessage "FilterSendMessage" sptr, sptr, int, sptr, int, var
; res = FilterSendMessage(hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, lpBytesReturned)
; hPort : HANDLE -> "sptr"
; lpInBuffer : void* -> "sptr"
; dwInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "sptr"
; dwOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* 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。

; HRESULT FilterSendMessage(HANDLE hPort, void* lpInBuffer, DWORD dwInBufferSize, void* lpOutBuffer, DWORD dwOutBufferSize, DWORD* lpBytesReturned)
#uselib "FLTLIB.dll"
#cfunc global FilterSendMessage "FilterSendMessage" intptr, intptr, int, intptr, int, var
; res = FilterSendMessage(hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, lpBytesReturned)
; hPort : HANDLE -> "intptr"
; lpInBuffer : void* -> "intptr"
; dwInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "intptr"
; dwOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* 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 (
	fltlib = windows.NewLazySystemDLL("FLTLIB.dll")
	procFilterSendMessage = fltlib.NewProc("FilterSendMessage")
)

// hPort (HANDLE), lpInBuffer (void*), dwInBufferSize (DWORD), lpOutBuffer (void* optional, out), dwOutBufferSize (DWORD), lpBytesReturned (DWORD* out)
r1, _, err := procFilterSendMessage.Call(
	uintptr(hPort),
	uintptr(lpInBuffer),
	uintptr(dwInBufferSize),
	uintptr(lpOutBuffer),
	uintptr(dwOutBufferSize),
	uintptr(lpBytesReturned),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function FilterSendMessage(
  hPort: THandle;   // HANDLE
  lpInBuffer: Pointer;   // void*
  dwInBufferSize: DWORD;   // DWORD
  lpOutBuffer: Pointer;   // void* optional, out
  dwOutBufferSize: DWORD;   // DWORD
  lpBytesReturned: Pointer   // DWORD* out
): Integer; stdcall;
  external 'FLTLIB.dll' name 'FilterSendMessage';

result := DllCall("FLTLIB\FilterSendMessage"
    , "Ptr", hPort   ; HANDLE
    , "Ptr", lpInBuffer   ; void*
    , "UInt", dwInBufferSize   ; DWORD
    , "Ptr", lpOutBuffer   ; void* optional, out
    , "UInt", dwOutBufferSize   ; DWORD
    , "Ptr", lpBytesReturned   ; DWORD* out
    , "Int")   ; return: HRESULT

●FilterSendMessage(hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, lpBytesReturned) = DLL("FLTLIB.dll", "int FilterSendMessage(void*, void*, dword, void*, dword, void*)")
# 呼び出し: FilterSendMessage(hPort, lpInBuffer, dwInBufferSize, lpOutBuffer, dwOutBufferSize, lpBytesReturned)
# hPort : HANDLE -> "void*"
# lpInBuffer : void* -> "void*"
# dwInBufferSize : DWORD -> "dword"
# lpOutBuffer : void* optional, out -> "void*"
# dwOutBufferSize : DWORD -> "dword"
# lpBytesReturned : 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)。