PeerCollabEnumApplications

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

HRESULT PeerCollabEnumApplications(
    PEER_ENDPOINT* pcEndpoint,   // optional
    const GUID* pApplicationId,   // optional
    void** phPeerEnum
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerCollabEnumApplications(
    pcEndpoint As IntPtr,   ' PEER_ENDPOINT* optional
    pApplicationId As IntPtr,   ' GUID* optional
    phPeerEnum As IntPtr   ' void** out
) As Integer
End Function

' pcEndpoint : PEER_ENDPOINT* optional
' pApplicationId : GUID* optional
' phPeerEnum : void** out
Declare PtrSafe Function PeerCollabEnumApplications Lib "p2p" ( _
    ByVal pcEndpoint As LongPtr, _
    ByVal pApplicationId As LongPtr, _
    ByVal phPeerEnum 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

PeerCollabEnumApplications = ctypes.windll.p2p.PeerCollabEnumApplications
PeerCollabEnumApplications.restype = ctypes.c_int
PeerCollabEnumApplications.argtypes = [
    ctypes.c_void_p,  # pcEndpoint : PEER_ENDPOINT* optional
    ctypes.c_void_p,  # pApplicationId : GUID* optional
    ctypes.c_void_p,  # phPeerEnum : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerCollabEnumApplications = Fiddle::Function.new(
  lib['PeerCollabEnumApplications'],
  [
    Fiddle::TYPE_VOIDP,  # pcEndpoint : PEER_ENDPOINT* optional
    Fiddle::TYPE_VOIDP,  # pApplicationId : GUID* optional
    Fiddle::TYPE_VOIDP,  # phPeerEnum : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerCollabEnumApplications(
        pcEndpoint: *mut PEER_ENDPOINT,  // PEER_ENDPOINT* optional
        pApplicationId: *const GUID,  // GUID* optional
        phPeerEnum: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerCollabEnumApplications(IntPtr pcEndpoint, IntPtr pApplicationId, IntPtr phPeerEnum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerCollabEnumApplications' -Namespace Win32 -PassThru
# $api::PeerCollabEnumApplications(pcEndpoint, pApplicationId, phPeerEnum)

#uselib "P2P.dll"
#func global PeerCollabEnumApplications "PeerCollabEnumApplications" sptr, sptr, sptr
; PeerCollabEnumApplications varptr(pcEndpoint), varptr(pApplicationId), phPeerEnum   ; 戻り値は stat
; pcEndpoint : PEER_ENDPOINT* optional -> "sptr"
; pApplicationId : GUID* optional -> "sptr"
; phPeerEnum : void** 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 PeerCollabEnumApplications "PeerCollabEnumApplications" var, var, sptr
; res = PeerCollabEnumApplications(pcEndpoint, pApplicationId, phPeerEnum)
; pcEndpoint : PEER_ENDPOINT* optional -> "var"
; pApplicationId : GUID* optional -> "var"
; phPeerEnum : void** out -> "sptr"
; ※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 PeerCollabEnumApplications(PEER_ENDPOINT* pcEndpoint, GUID* pApplicationId, void** phPeerEnum)
#uselib "P2P.dll"
#cfunc global PeerCollabEnumApplications "PeerCollabEnumApplications" var, var, intptr
; res = PeerCollabEnumApplications(pcEndpoint, pApplicationId, phPeerEnum)
; pcEndpoint : PEER_ENDPOINT* optional -> "var"
; pApplicationId : GUID* optional -> "var"
; phPeerEnum : void** out -> "intptr"
; ※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")
	procPeerCollabEnumApplications = p2p.NewProc("PeerCollabEnumApplications")
)

// pcEndpoint (PEER_ENDPOINT* optional), pApplicationId (GUID* optional), phPeerEnum (void** out)
r1, _, err := procPeerCollabEnumApplications.Call(
	uintptr(pcEndpoint),
	uintptr(pApplicationId),
	uintptr(phPeerEnum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerCollabEnumApplications(
  pcEndpoint: Pointer;   // PEER_ENDPOINT* optional
  pApplicationId: PGUID;   // GUID* optional
  phPeerEnum: Pointer   // void** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerCollabEnumApplications';

result := DllCall("P2P\PeerCollabEnumApplications"
    , "Ptr", pcEndpoint   ; PEER_ENDPOINT* optional
    , "Ptr", pApplicationId   ; GUID* optional
    , "Ptr", phPeerEnum   ; void** out
    , "Int")   ; return: HRESULT

●PeerCollabEnumApplications(pcEndpoint, pApplicationId, phPeerEnum) = DLL("P2P.dll", "int PeerCollabEnumApplications(void*, void*, void*)")
# 呼び出し: PeerCollabEnumApplications(pcEndpoint, pApplicationId, phPeerEnum)
# pcEndpoint : PEER_ENDPOINT* optional -> "void*"
# pApplicationId : GUID* optional -> "void*"
# phPeerEnum : void** 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)。