lineGetNumRings

// TAPI32.dll
#include <windows.h>

INT lineGetNumRings(
    DWORD hLine,
    DWORD dwAddressID,
    DWORD* lpdwNumRings
);

<DllImport("TAPI32.dll", ExactSpelling:=True)>
Public Shared Function lineGetNumRings(
    hLine As UInteger,   ' DWORD
    dwAddressID As UInteger,   ' DWORD
    ByRef lpdwNumRings As UInteger   ' DWORD* in/out
) As Integer
End Function

' hLine : DWORD
' dwAddressID : DWORD
' lpdwNumRings : DWORD* in/out
Declare PtrSafe Function lineGetNumRings Lib "tapi32" ( _
    ByVal hLine As Long, _
    ByVal dwAddressID As Long, _
    ByRef lpdwNumRings 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

lineGetNumRings = ctypes.windll.tapi32.lineGetNumRings
lineGetNumRings.restype = ctypes.c_int
lineGetNumRings.argtypes = [
    wintypes.DWORD,  # hLine : DWORD
    wintypes.DWORD,  # dwAddressID : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpdwNumRings : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

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

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

$sig = @"
[DllImport("TAPI32.dll")]
public static extern int lineGetNumRings(uint hLine, uint dwAddressID, ref uint lpdwNumRings);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TAPI32_lineGetNumRings' -Namespace Win32 -PassThru
# $api::lineGetNumRings(hLine, dwAddressID, lpdwNumRings)

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

#uselib "TAPI32.dll"
#cfunc global lineGetNumRings "lineGetNumRings" int, int, var
; res = lineGetNumRings(hLine, dwAddressID, lpdwNumRings)
; hLine : DWORD -> "int"
; dwAddressID : DWORD -> "int"
; lpdwNumRings : DWORD* 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 lineGetNumRings(DWORD hLine, DWORD dwAddressID, DWORD* lpdwNumRings)
#uselib "TAPI32.dll"
#cfunc global lineGetNumRings "lineGetNumRings" int, int, var
; res = lineGetNumRings(hLine, dwAddressID, lpdwNumRings)
; hLine : DWORD -> "int"
; dwAddressID : DWORD -> "int"
; lpdwNumRings : DWORD* 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。

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

var (
	tapi32 = windows.NewLazySystemDLL("TAPI32.dll")
	proclineGetNumRings = tapi32.NewProc("lineGetNumRings")
)

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

function lineGetNumRings(
  hLine: DWORD;   // DWORD
  dwAddressID: DWORD;   // DWORD
  lpdwNumRings: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineGetNumRings';

result := DllCall("TAPI32\lineGetNumRings"
    , "UInt", hLine   ; DWORD
    , "UInt", dwAddressID   ; DWORD
    , "Ptr", lpdwNumRings   ; DWORD* in/out
    , "Int")   ; return: INT

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