RpcServerInqDefaultPrincNameA

// RPCRT4.dll  (ANSI / -A)
#include <windows.h>

RPC_STATUS RpcServerInqDefaultPrincNameA(
    DWORD AuthnSvc,
    LPSTR* PrincName
);

<DllImport("RPCRT4.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RpcServerInqDefaultPrincNameA(
    AuthnSvc As UInteger,   ' DWORD
    PrincName As IntPtr   ' LPSTR* out
) As Integer
End Function

' AuthnSvc : DWORD
' PrincName : LPSTR* out
Declare PtrSafe Function RpcServerInqDefaultPrincNameA Lib "rpcrt4" ( _
    ByVal AuthnSvc As Long, _
    ByVal PrincName 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

RpcServerInqDefaultPrincNameA = ctypes.windll.rpcrt4.RpcServerInqDefaultPrincNameA
RpcServerInqDefaultPrincNameA.restype = ctypes.c_int
RpcServerInqDefaultPrincNameA.argtypes = [
    wintypes.DWORD,  # AuthnSvc : DWORD
    ctypes.c_void_p,  # PrincName : LPSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
RpcServerInqDefaultPrincNameA = Fiddle::Function.new(
  lib['RpcServerInqDefaultPrincNameA'],
  [
    -Fiddle::TYPE_INT,  # AuthnSvc : DWORD
    Fiddle::TYPE_VOIDP,  # PrincName : LPSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "rpcrt4")]
extern "system" {
    fn RpcServerInqDefaultPrincNameA(
        AuthnSvc: u32,  // DWORD
        PrincName: *mut *mut u8  // LPSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll", CharSet = CharSet.Ansi)]
public static extern int RpcServerInqDefaultPrincNameA(uint AuthnSvc, IntPtr PrincName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_RpcServerInqDefaultPrincNameA' -Namespace Win32 -PassThru
# $api::RpcServerInqDefaultPrincNameA(AuthnSvc, PrincName)

#uselib "RPCRT4.dll"
#func global RpcServerInqDefaultPrincNameA "RpcServerInqDefaultPrincNameA" sptr, sptr
; RpcServerInqDefaultPrincNameA AuthnSvc, varptr(PrincName)   ; 戻り値は stat
; AuthnSvc : DWORD -> "sptr"
; PrincName : LPSTR* 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 "RPCRT4.dll"
#cfunc global RpcServerInqDefaultPrincNameA "RpcServerInqDefaultPrincNameA" int, var
; res = RpcServerInqDefaultPrincNameA(AuthnSvc, PrincName)
; AuthnSvc : DWORD -> "int"
; PrincName : LPSTR* 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。

; RPC_STATUS RpcServerInqDefaultPrincNameA(DWORD AuthnSvc, LPSTR* PrincName)
#uselib "RPCRT4.dll"
#cfunc global RpcServerInqDefaultPrincNameA "RpcServerInqDefaultPrincNameA" int, var
; res = RpcServerInqDefaultPrincNameA(AuthnSvc, PrincName)
; AuthnSvc : DWORD -> "int"
; PrincName : LPSTR* 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 (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procRpcServerInqDefaultPrincNameA = rpcrt4.NewProc("RpcServerInqDefaultPrincNameA")
)

// AuthnSvc (DWORD), PrincName (LPSTR* out)
r1, _, err := procRpcServerInqDefaultPrincNameA.Call(
	uintptr(AuthnSvc),
	uintptr(PrincName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // RPC_STATUS

function RpcServerInqDefaultPrincNameA(
  AuthnSvc: DWORD;   // DWORD
  PrincName: PPAnsiChar   // LPSTR* out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'RpcServerInqDefaultPrincNameA';

result := DllCall("RPCRT4\RpcServerInqDefaultPrincNameA"
    , "UInt", AuthnSvc   ; DWORD
    , "Ptr", PrincName   ; LPSTR* out
    , "Int")   ; return: RPC_STATUS

●RpcServerInqDefaultPrincNameA(AuthnSvc, PrincName) = DLL("RPCRT4.dll", "int RpcServerInqDefaultPrincNameA(dword, void*)")
# 呼び出し: RpcServerInqDefaultPrincNameA(AuthnSvc, PrincName)
# AuthnSvc : DWORD -> "dword"
# PrincName : LPSTR* 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)。