XcvDataW

関数

ポートモニターへ管理用のデータを送受信する。

DLLwinspool.drv呼出規約winapi

シグネチャ

// winspool.drv
#include <windows.h>

BOOL XcvDataW(
    HANDLE hXcv,
    LPCWSTR pszDataName,
    BYTE* pInputData,   // optional
    DWORD cbInputData,
    BYTE* pOutputData,   // optional
    DWORD cbOutputData,
    DWORD* pcbOutputNeeded,
    DWORD* pdwStatus   // optional
);

パラメーター

名前	型	方向
hXcv	HANDLE	in
pszDataName	LPCWSTR	in
pInputData	BYTE*	inoptional
cbInputData	DWORD	in
pOutputData	BYTE*	outoptional
cbOutputData	DWORD	in
pcbOutputNeeded	DWORD*	out
pdwStatus	DWORD*	outoptional

戻り値の型: BOOL

各言語での呼び出し定義

// winspool.drv
#include <windows.h>

BOOL XcvDataW(
    HANDLE hXcv,
    LPCWSTR pszDataName,
    BYTE* pInputData,   // optional
    DWORD cbInputData,
    BYTE* pOutputData,   // optional
    DWORD cbOutputData,
    DWORD* pcbOutputNeeded,
    DWORD* pdwStatus   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv", ExactSpelling = true)]
static extern bool XcvDataW(
    IntPtr hXcv,   // HANDLE
    [MarshalAs(UnmanagedType.LPWStr)] string pszDataName,   // LPCWSTR
    IntPtr pInputData,   // BYTE* optional
    uint cbInputData,   // DWORD
    IntPtr pOutputData,   // BYTE* optional, out
    uint cbOutputData,   // DWORD
    out uint pcbOutputNeeded,   // DWORD* out
    IntPtr pdwStatus   // DWORD* optional, out
);

<DllImport("winspool.drv", ExactSpelling:=True)>
Public Shared Function XcvDataW(
    hXcv As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pszDataName As String,   ' LPCWSTR
    pInputData As IntPtr,   ' BYTE* optional
    cbInputData As UInteger,   ' DWORD
    pOutputData As IntPtr,   ' BYTE* optional, out
    cbOutputData As UInteger,   ' DWORD
    <Out> ByRef pcbOutputNeeded As UInteger,   ' DWORD* out
    pdwStatus As IntPtr   ' DWORD* optional, out
) As Boolean
End Function

' hXcv : HANDLE
' pszDataName : LPCWSTR
' pInputData : BYTE* optional
' cbInputData : DWORD
' pOutputData : BYTE* optional, out
' cbOutputData : DWORD
' pcbOutputNeeded : DWORD* out
' pdwStatus : DWORD* optional, out
Declare PtrSafe Function XcvDataW Lib "winspool.drv" ( _
    ByVal hXcv As LongPtr, _
    ByVal pszDataName As LongPtr, _
    ByVal pInputData As LongPtr, _
    ByVal cbInputData As Long, _
    ByVal pOutputData As LongPtr, _
    ByVal cbOutputData As Long, _
    ByRef pcbOutputNeeded As Long, _
    ByVal pdwStatus As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

XcvDataW = ctypes.windll.LoadLibrary("winspool.drv").XcvDataW
XcvDataW.restype = wintypes.BOOL
XcvDataW.argtypes = [
    wintypes.HANDLE,  # hXcv : HANDLE
    wintypes.LPCWSTR,  # pszDataName : LPCWSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pInputData : BYTE* optional
    wintypes.DWORD,  # cbInputData : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pOutputData : BYTE* optional, out
    wintypes.DWORD,  # cbOutputData : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbOutputNeeded : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pdwStatus : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
XcvDataW = Fiddle::Function.new(
  lib['XcvDataW'],
  [
    Fiddle::TYPE_VOIDP,  # hXcv : HANDLE
    Fiddle::TYPE_VOIDP,  # pszDataName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pInputData : BYTE* optional
    -Fiddle::TYPE_INT,  # cbInputData : DWORD
    Fiddle::TYPE_VOIDP,  # pOutputData : BYTE* optional, out
    -Fiddle::TYPE_INT,  # cbOutputData : DWORD
    Fiddle::TYPE_VOIDP,  # pcbOutputNeeded : DWORD* out
    Fiddle::TYPE_VOIDP,  # pdwStatus : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn XcvDataW(
        hXcv: *mut core::ffi::c_void,  // HANDLE
        pszDataName: *const u16,  // LPCWSTR
        pInputData: *mut u8,  // BYTE* optional
        cbInputData: u32,  // DWORD
        pOutputData: *mut u8,  // BYTE* optional, out
        cbOutputData: u32,  // DWORD
        pcbOutputNeeded: *mut u32,  // DWORD* out
        pdwStatus: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv")]
public static extern bool XcvDataW(IntPtr hXcv, [MarshalAs(UnmanagedType.LPWStr)] string pszDataName, IntPtr pInputData, uint cbInputData, IntPtr pOutputData, uint cbOutputData, out uint pcbOutputNeeded, IntPtr pdwStatus);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_XcvDataW' -Namespace Win32 -PassThru
# $api::XcvDataW(hXcv, pszDataName, pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded, pdwStatus)

#uselib "winspool.drv"
#func global XcvDataW "XcvDataW" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; XcvDataW hXcv, pszDataName, varptr(pInputData), cbInputData, varptr(pOutputData), cbOutputData, varptr(pcbOutputNeeded), varptr(pdwStatus)   ; 戻り値は stat
; hXcv : HANDLE -> "sptr"
; pszDataName : LPCWSTR -> "sptr"
; pInputData : BYTE* optional -> "sptr"
; cbInputData : DWORD -> "sptr"
; pOutputData : BYTE* optional, out -> "sptr"
; cbOutputData : DWORD -> "sptr"
; pcbOutputNeeded : DWORD* out -> "sptr"
; pdwStatus : DWORD* optional, 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。

出力引数:

#uselib "winspool.drv"
#cfunc global XcvDataW "XcvDataW" sptr, wstr, var, int, var, int, var, var
; res = XcvDataW(hXcv, pszDataName, pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded, pdwStatus)
; hXcv : HANDLE -> "sptr"
; pszDataName : LPCWSTR -> "wstr"
; pInputData : BYTE* optional -> "var"
; cbInputData : DWORD -> "int"
; pOutputData : BYTE* optional, out -> "var"
; cbOutputData : DWORD -> "int"
; pcbOutputNeeded : DWORD* out -> "var"
; pdwStatus : DWORD* optional, 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。#uselib "winspool.drv"
#cfunc global XcvDataW "XcvDataW" sptr, wstr, sptr, int, sptr, int, sptr, sptr
; res = XcvDataW(hXcv, pszDataName, varptr(pInputData), cbInputData, varptr(pOutputData), cbOutputData, varptr(pcbOutputNeeded), varptr(pdwStatus))
; hXcv : HANDLE -> "sptr"
; pszDataName : LPCWSTR -> "wstr"
; pInputData : BYTE* optional -> "sptr"
; cbInputData : DWORD -> "int"
; pOutputData : BYTE* optional, out -> "sptr"
; cbOutputData : DWORD -> "int"
; pcbOutputNeeded : DWORD* out -> "sptr"
; pdwStatus : DWORD* optional, out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; BOOL XcvDataW(HANDLE hXcv, LPCWSTR pszDataName, BYTE* pInputData, DWORD cbInputData, BYTE* pOutputData, DWORD cbOutputData, DWORD* pcbOutputNeeded, DWORD* pdwStatus)
#uselib "winspool.drv"
#cfunc global XcvDataW "XcvDataW" intptr, wstr, var, int, var, int, var, var
; res = XcvDataW(hXcv, pszDataName, pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded, pdwStatus)
; hXcv : HANDLE -> "intptr"
; pszDataName : LPCWSTR -> "wstr"
; pInputData : BYTE* optional -> "var"
; cbInputData : DWORD -> "int"
; pOutputData : BYTE* optional, out -> "var"
; cbOutputData : DWORD -> "int"
; pcbOutputNeeded : DWORD* out -> "var"
; pdwStatus : DWORD* optional, 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。; BOOL XcvDataW(HANDLE hXcv, LPCWSTR pszDataName, BYTE* pInputData, DWORD cbInputData, BYTE* pOutputData, DWORD cbOutputData, DWORD* pcbOutputNeeded, DWORD* pdwStatus)
#uselib "winspool.drv"
#cfunc global XcvDataW "XcvDataW" intptr, wstr, intptr, int, intptr, int, intptr, intptr
; res = XcvDataW(hXcv, pszDataName, varptr(pInputData), cbInputData, varptr(pOutputData), cbOutputData, varptr(pcbOutputNeeded), varptr(pdwStatus))
; hXcv : HANDLE -> "intptr"
; pszDataName : LPCWSTR -> "wstr"
; pInputData : BYTE* optional -> "intptr"
; cbInputData : DWORD -> "int"
; pOutputData : BYTE* optional, out -> "intptr"
; cbOutputData : DWORD -> "int"
; pcbOutputNeeded : DWORD* out -> "intptr"
; pdwStatus : DWORD* optional, out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procXcvDataW = winspool_drv.NewProc("XcvDataW")
)

// hXcv (HANDLE), pszDataName (LPCWSTR), pInputData (BYTE* optional), cbInputData (DWORD), pOutputData (BYTE* optional, out), cbOutputData (DWORD), pcbOutputNeeded (DWORD* out), pdwStatus (DWORD* optional, out)
r1, _, err := procXcvDataW.Call(
	uintptr(hXcv),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszDataName))),
	uintptr(pInputData),
	uintptr(cbInputData),
	uintptr(pOutputData),
	uintptr(cbOutputData),
	uintptr(pcbOutputNeeded),
	uintptr(pdwStatus),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function XcvDataW(
  hXcv: THandle;   // HANDLE
  pszDataName: PWideChar;   // LPCWSTR
  pInputData: Pointer;   // BYTE* optional
  cbInputData: DWORD;   // DWORD
  pOutputData: Pointer;   // BYTE* optional, out
  cbOutputData: DWORD;   // DWORD
  pcbOutputNeeded: Pointer;   // DWORD* out
  pdwStatus: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'winspool.drv' name 'XcvDataW';

result := DllCall("winspool.drv\XcvDataW"
    , "Ptr", hXcv   ; HANDLE
    , "WStr", pszDataName   ; LPCWSTR
    , "Ptr", pInputData   ; BYTE* optional
    , "UInt", cbInputData   ; DWORD
    , "Ptr", pOutputData   ; BYTE* optional, out
    , "UInt", cbOutputData   ; DWORD
    , "Ptr", pcbOutputNeeded   ; DWORD* out
    , "Ptr", pdwStatus   ; DWORD* optional, out
    , "Int")   ; return: BOOL

●XcvDataW(hXcv, pszDataName, pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded, pdwStatus) = DLL("winspool.drv", "bool XcvDataW(void*, char*, void*, dword, void*, dword, void*, void*)")
# 呼び出し: XcvDataW(hXcv, pszDataName, pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded, pdwStatus)
# hXcv : HANDLE -> "void*"
# pszDataName : LPCWSTR -> "char*"
# pInputData : BYTE* optional -> "void*"
# cbInputData : DWORD -> "dword"
# pOutputData : BYTE* optional, out -> "void*"
# cbOutputData : DWORD -> "dword"
# pcbOutputNeeded : DWORD* out -> "void*"
# pdwStatus : DWORD* optional, 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)。