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lineGetLineDevStatusA

関数

指定した回線デバイスの現在の状態を取得する(ANSI版)。

DLLTAPI32.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// TAPI32.dll  (ANSI / -A)
#include <windows.h>

INT lineGetLineDevStatusA(
    DWORD hLine,
    LINEDEVSTATUS* lpLineDevStatus
);

パラメーター

名前	型	方向	説明
hLine	DWORD	in	状態を取得する対象の開いた回線のハンドル。
lpLineDevStatus	LINEDEVSTATUS*	inout	回線デバイスの現在の状態を受け取るLINEDEVSTATUS構造体へのポインタ。dwTotalSizeを事前設定する。

戻り値の型: INT

各言語での呼び出し定義

// TAPI32.dll  (ANSI / -A)
#include <windows.h>

INT lineGetLineDevStatusA(
    DWORD hLine,
    LINEDEVSTATUS* lpLineDevStatus
);

[DllImport("TAPI32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int lineGetLineDevStatusA(
    uint hLine,   // DWORD
    IntPtr lpLineDevStatus   // LINEDEVSTATUS* in/out
);

<DllImport("TAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function lineGetLineDevStatusA(
    hLine As UInteger,   ' DWORD
    lpLineDevStatus As IntPtr   ' LINEDEVSTATUS* in/out
) As Integer
End Function

' hLine : DWORD
' lpLineDevStatus : LINEDEVSTATUS* in/out
Declare PtrSafe Function lineGetLineDevStatusA Lib "tapi32" ( _
    ByVal hLine As Long, _
    ByVal lpLineDevStatus 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

lineGetLineDevStatusA = ctypes.windll.tapi32.lineGetLineDevStatusA
lineGetLineDevStatusA.restype = ctypes.c_int
lineGetLineDevStatusA.argtypes = [
    wintypes.DWORD,  # hLine : DWORD
    ctypes.c_void_p,  # lpLineDevStatus : LINEDEVSTATUS* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TAPI32.dll')
lineGetLineDevStatusA = Fiddle::Function.new(
  lib['lineGetLineDevStatusA'],
  [
    -Fiddle::TYPE_INT,  # hLine : DWORD
    Fiddle::TYPE_VOIDP,  # lpLineDevStatus : LINEDEVSTATUS* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "tapi32")]
extern "system" {
    fn lineGetLineDevStatusA(
        hLine: u32,  // DWORD
        lpLineDevStatus: *mut LINEDEVSTATUS  // LINEDEVSTATUS* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TAPI32.dll", CharSet = CharSet.Ansi)]
public static extern int lineGetLineDevStatusA(uint hLine, IntPtr lpLineDevStatus);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TAPI32_lineGetLineDevStatusA' -Namespace Win32 -PassThru
# $api::lineGetLineDevStatusA(hLine, lpLineDevStatus)

#uselib "TAPI32.dll"
#func global lineGetLineDevStatusA "lineGetLineDevStatusA" sptr, sptr
; lineGetLineDevStatusA hLine, varptr(lpLineDevStatus)   ; 戻り値は stat
; hLine : DWORD -> "sptr"
; lpLineDevStatus : LINEDEVSTATUS* 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。

出力引数:

#uselib "TAPI32.dll"
#cfunc global lineGetLineDevStatusA "lineGetLineDevStatusA" int, var
; res = lineGetLineDevStatusA(hLine, lpLineDevStatus)
; hLine : DWORD -> "int"
; lpLineDevStatus : LINEDEVSTATUS* 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。#uselib "TAPI32.dll"
#cfunc global lineGetLineDevStatusA "lineGetLineDevStatusA" int, sptr
; res = lineGetLineDevStatusA(hLine, varptr(lpLineDevStatus))
; hLine : DWORD -> "int"
; lpLineDevStatus : LINEDEVSTATUS* in/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:

; INT lineGetLineDevStatusA(DWORD hLine, LINEDEVSTATUS* lpLineDevStatus)
#uselib "TAPI32.dll"
#cfunc global lineGetLineDevStatusA "lineGetLineDevStatusA" int, var
; res = lineGetLineDevStatusA(hLine, lpLineDevStatus)
; hLine : DWORD -> "int"
; lpLineDevStatus : LINEDEVSTATUS* 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。; INT lineGetLineDevStatusA(DWORD hLine, LINEDEVSTATUS* lpLineDevStatus)
#uselib "TAPI32.dll"
#cfunc global lineGetLineDevStatusA "lineGetLineDevStatusA" int, intptr
; res = lineGetLineDevStatusA(hLine, varptr(lpLineDevStatus))
; hLine : DWORD -> "int"
; lpLineDevStatus : LINEDEVSTATUS* in/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 (
	tapi32 = windows.NewLazySystemDLL("TAPI32.dll")
	proclineGetLineDevStatusA = tapi32.NewProc("lineGetLineDevStatusA")
)

// hLine (DWORD), lpLineDevStatus (LINEDEVSTATUS* in/out)
r1, _, err := proclineGetLineDevStatusA.Call(
	uintptr(hLine),
	uintptr(lpLineDevStatus),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function lineGetLineDevStatusA(
  hLine: DWORD;   // DWORD
  lpLineDevStatus: Pointer   // LINEDEVSTATUS* in/out
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineGetLineDevStatusA';

result := DllCall("TAPI32\lineGetLineDevStatusA"
    , "UInt", hLine   ; DWORD
    , "Ptr", lpLineDevStatus   ; LINEDEVSTATUS* in/out
    , "Int")   ; return: INT

●lineGetLineDevStatusA(hLine, lpLineDevStatus) = DLL("TAPI32.dll", "int lineGetLineDevStatusA(dword, void*)")
# 呼び出し: lineGetLineDevStatusA(hLine, lpLineDevStatus)
# hLine : DWORD -> "dword"
# lpLineDevStatus : LINEDEVSTATUS* 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)。