PeerGroupGetRecord

// P2P.dll
#include <windows.h>

HRESULT PeerGroupGetRecord(
    void* hGroup,
    const GUID* pRecordId,
    PEER_RECORD** ppRecord
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerGroupGetRecord(
    hGroup As IntPtr,   ' void*
    ByRef pRecordId As Guid,   ' GUID*
    ppRecord As IntPtr   ' PEER_RECORD** out
) As Integer
End Function

' hGroup : void*
' pRecordId : GUID*
' ppRecord : PEER_RECORD** out
Declare PtrSafe Function PeerGroupGetRecord Lib "p2p" ( _
    ByVal hGroup As LongPtr, _
    ByVal pRecordId As LongPtr, _
    ByVal ppRecord 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

PeerGroupGetRecord = ctypes.windll.p2p.PeerGroupGetRecord
PeerGroupGetRecord.restype = ctypes.c_int
PeerGroupGetRecord.argtypes = [
    ctypes.POINTER(None),  # hGroup : void*
    ctypes.c_void_p,  # pRecordId : GUID*
    ctypes.c_void_p,  # ppRecord : PEER_RECORD** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerGroupGetRecord = Fiddle::Function.new(
  lib['PeerGroupGetRecord'],
  [
    Fiddle::TYPE_VOIDP,  # hGroup : void*
    Fiddle::TYPE_VOIDP,  # pRecordId : GUID*
    Fiddle::TYPE_VOIDP,  # ppRecord : PEER_RECORD** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerGroupGetRecord(
        hGroup: *mut (),  // void*
        pRecordId: *const GUID,  // GUID*
        ppRecord: *mut *mut PEER_RECORD  // PEER_RECORD** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerGroupGetRecord(IntPtr hGroup, ref Guid pRecordId, IntPtr ppRecord);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerGroupGetRecord' -Namespace Win32 -PassThru
# $api::PeerGroupGetRecord(hGroup, pRecordId, ppRecord)

#uselib "P2P.dll"
#func global PeerGroupGetRecord "PeerGroupGetRecord" sptr, sptr, sptr
; PeerGroupGetRecord hGroup, varptr(pRecordId), varptr(ppRecord)   ; 戻り値は stat
; hGroup : void* -> "sptr"
; pRecordId : GUID* -> "sptr"
; ppRecord : PEER_RECORD** 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 "P2P.dll"
#cfunc global PeerGroupGetRecord "PeerGroupGetRecord" sptr, var, var
; res = PeerGroupGetRecord(hGroup, pRecordId, ppRecord)
; hGroup : void* -> "sptr"
; pRecordId : GUID* -> "var"
; ppRecord : PEER_RECORD** 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。

; HRESULT PeerGroupGetRecord(void* hGroup, GUID* pRecordId, PEER_RECORD** ppRecord)
#uselib "P2P.dll"
#cfunc global PeerGroupGetRecord "PeerGroupGetRecord" intptr, var, var
; res = PeerGroupGetRecord(hGroup, pRecordId, ppRecord)
; hGroup : void* -> "intptr"
; pRecordId : GUID* -> "var"
; ppRecord : PEER_RECORD** 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 (
	p2p = windows.NewLazySystemDLL("P2P.dll")
	procPeerGroupGetRecord = p2p.NewProc("PeerGroupGetRecord")
)

// hGroup (void*), pRecordId (GUID*), ppRecord (PEER_RECORD** out)
r1, _, err := procPeerGroupGetRecord.Call(
	uintptr(hGroup),
	uintptr(pRecordId),
	uintptr(ppRecord),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGroupGetRecord(
  hGroup: Pointer;   // void*
  pRecordId: PGUID;   // GUID*
  ppRecord: Pointer   // PEER_RECORD** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupGetRecord';

result := DllCall("P2P\PeerGroupGetRecord"
    , "Ptr", hGroup   ; void*
    , "Ptr", pRecordId   ; GUID*
    , "Ptr", ppRecord   ; PEER_RECORD** out
    , "Int")   ; return: HRESULT

●PeerGroupGetRecord(hGroup, pRecordId, ppRecord) = DLL("P2P.dll", "int PeerGroupGetRecord(void*, void*, void*)")
# 呼び出し: PeerGroupGetRecord(hGroup, pRecordId, ppRecord)
# hGroup : void* -> "void*"
# pRecordId : GUID* -> "void*"
# ppRecord : PEER_RECORD** 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)。