GetNamedPipeClientComputerNameA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL GetNamedPipeClientComputerNameA(
    HANDLE Pipe,
    LPSTR ClientComputerName,
    DWORD ClientComputerNameLength
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetNamedPipeClientComputerNameA(
    Pipe As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPStr)> ClientComputerName As System.Text.StringBuilder,   ' LPSTR out
    ClientComputerNameLength As UInteger   ' DWORD
) As Boolean
End Function

' Pipe : HANDLE
' ClientComputerName : LPSTR out
' ClientComputerNameLength : DWORD
Declare PtrSafe Function GetNamedPipeClientComputerNameA Lib "kernel32" ( _
    ByVal Pipe As LongPtr, _
    ByVal ClientComputerName As String, _
    ByVal ClientComputerNameLength 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

GetNamedPipeClientComputerNameA = ctypes.windll.kernel32.GetNamedPipeClientComputerNameA
GetNamedPipeClientComputerNameA.restype = wintypes.BOOL
GetNamedPipeClientComputerNameA.argtypes = [
    wintypes.HANDLE,  # Pipe : HANDLE
    wintypes.LPSTR,  # ClientComputerName : LPSTR out
    wintypes.DWORD,  # ClientComputerNameLength : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetNamedPipeClientComputerNameA = Fiddle::Function.new(
  lib['GetNamedPipeClientComputerNameA'],
  [
    Fiddle::TYPE_VOIDP,  # Pipe : HANDLE
    Fiddle::TYPE_VOIDP,  # ClientComputerName : LPSTR out
    -Fiddle::TYPE_INT,  # ClientComputerNameLength : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetNamedPipeClientComputerNameA(
        Pipe: *mut core::ffi::c_void,  // HANDLE
        ClientComputerName: *mut u8,  // LPSTR out
        ClientComputerNameLength: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool GetNamedPipeClientComputerNameA(IntPtr Pipe, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder ClientComputerName, uint ClientComputerNameLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetNamedPipeClientComputerNameA' -Namespace Win32 -PassThru
# $api::GetNamedPipeClientComputerNameA(Pipe, ClientComputerName, ClientComputerNameLength)

#uselib "KERNEL32.dll"
#func global GetNamedPipeClientComputerNameA "GetNamedPipeClientComputerNameA" sptr, sptr, sptr
; GetNamedPipeClientComputerNameA Pipe, varptr(ClientComputerName), ClientComputerNameLength   ; 戻り値は stat
; Pipe : HANDLE -> "sptr"
; ClientComputerName : LPSTR out -> "sptr"
; ClientComputerNameLength : DWORD -> "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 "KERNEL32.dll"
#cfunc global GetNamedPipeClientComputerNameA "GetNamedPipeClientComputerNameA" sptr, var, int
; res = GetNamedPipeClientComputerNameA(Pipe, ClientComputerName, ClientComputerNameLength)
; Pipe : HANDLE -> "sptr"
; ClientComputerName : LPSTR out -> "var"
; ClientComputerNameLength : DWORD -> "int"
; ※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 GetNamedPipeClientComputerNameA(HANDLE Pipe, LPSTR ClientComputerName, DWORD ClientComputerNameLength)
#uselib "KERNEL32.dll"
#cfunc global GetNamedPipeClientComputerNameA "GetNamedPipeClientComputerNameA" intptr, var, int
; res = GetNamedPipeClientComputerNameA(Pipe, ClientComputerName, ClientComputerNameLength)
; Pipe : HANDLE -> "intptr"
; ClientComputerName : LPSTR out -> "var"
; ClientComputerNameLength : DWORD -> "int"
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetNamedPipeClientComputerNameA = kernel32.NewProc("GetNamedPipeClientComputerNameA")
)

// Pipe (HANDLE), ClientComputerName (LPSTR out), ClientComputerNameLength (DWORD)
r1, _, err := procGetNamedPipeClientComputerNameA.Call(
	uintptr(Pipe),
	uintptr(ClientComputerName),
	uintptr(ClientComputerNameLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetNamedPipeClientComputerNameA(
  Pipe: THandle;   // HANDLE
  ClientComputerName: PAnsiChar;   // LPSTR out
  ClientComputerNameLength: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetNamedPipeClientComputerNameA';

result := DllCall("KERNEL32\GetNamedPipeClientComputerNameA"
    , "Ptr", Pipe   ; HANDLE
    , "Ptr", ClientComputerName   ; LPSTR out
    , "UInt", ClientComputerNameLength   ; DWORD
    , "Int")   ; return: BOOL

●GetNamedPipeClientComputerNameA(Pipe, ClientComputerName, ClientComputerNameLength) = DLL("KERNEL32.dll", "bool GetNamedPipeClientComputerNameA(void*, char*, dword)")
# 呼び出し: GetNamedPipeClientComputerNameA(Pipe, ClientComputerName, ClientComputerNameLength)
# Pipe : HANDLE -> "void*"
# ClientComputerName : LPSTR out -> "char*"
# ClientComputerNameLength : DWORD -> "dword"
# 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)。