PeerGroupDelete

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

HRESULT PeerGroupDelete(
    LPCWSTR pwzIdentity,
    LPCWSTR pwzGroupPeerName
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerGroupDelete(
    <MarshalAs(UnmanagedType.LPWStr)> pwzIdentity As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pwzGroupPeerName As String   ' LPCWSTR
) As Integer
End Function

' pwzIdentity : LPCWSTR
' pwzGroupPeerName : LPCWSTR
Declare PtrSafe Function PeerGroupDelete Lib "p2p" ( _
    ByVal pwzIdentity As LongPtr, _
    ByVal pwzGroupPeerName 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

PeerGroupDelete = ctypes.windll.p2p.PeerGroupDelete
PeerGroupDelete.restype = ctypes.c_int
PeerGroupDelete.argtypes = [
    wintypes.LPCWSTR,  # pwzIdentity : LPCWSTR
    wintypes.LPCWSTR,  # pwzGroupPeerName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerGroupDelete = Fiddle::Function.new(
  lib['PeerGroupDelete'],
  [
    Fiddle::TYPE_VOIDP,  # pwzIdentity : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pwzGroupPeerName : LPCWSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerGroupDelete(
        pwzIdentity: *const u16,  // LPCWSTR
        pwzGroupPeerName: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerGroupDelete([MarshalAs(UnmanagedType.LPWStr)] string pwzIdentity, [MarshalAs(UnmanagedType.LPWStr)] string pwzGroupPeerName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerGroupDelete' -Namespace Win32 -PassThru
# $api::PeerGroupDelete(pwzIdentity, pwzGroupPeerName)

#uselib "P2P.dll"
#func global PeerGroupDelete "PeerGroupDelete" sptr, sptr
; PeerGroupDelete pwzIdentity, pwzGroupPeerName   ; 戻り値は stat
; pwzIdentity : LPCWSTR -> "sptr"
; pwzGroupPeerName : LPCWSTR -> "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 PeerGroupDelete "PeerGroupDelete" wstr, wstr
; res = PeerGroupDelete(pwzIdentity, pwzGroupPeerName)
; pwzIdentity : LPCWSTR -> "wstr"
; pwzGroupPeerName : LPCWSTR -> "wstr"

; HRESULT PeerGroupDelete(LPCWSTR pwzIdentity, LPCWSTR pwzGroupPeerName)
#uselib "P2P.dll"
#cfunc global PeerGroupDelete "PeerGroupDelete" wstr, wstr
; res = PeerGroupDelete(pwzIdentity, pwzGroupPeerName)
; pwzIdentity : LPCWSTR -> "wstr"
; pwzGroupPeerName : LPCWSTR -> "wstr"

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

var (
	p2p = windows.NewLazySystemDLL("P2P.dll")
	procPeerGroupDelete = p2p.NewProc("PeerGroupDelete")
)

// pwzIdentity (LPCWSTR), pwzGroupPeerName (LPCWSTR)
r1, _, err := procPeerGroupDelete.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzIdentity))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzGroupPeerName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGroupDelete(
  pwzIdentity: PWideChar;   // LPCWSTR
  pwzGroupPeerName: PWideChar   // LPCWSTR
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupDelete';

result := DllCall("P2P\PeerGroupDelete"
    , "WStr", pwzIdentity   ; LPCWSTR
    , "WStr", pwzGroupPeerName   ; LPCWSTR
    , "Int")   ; return: HRESULT

●PeerGroupDelete(pwzIdentity, pwzGroupPeerName) = DLL("P2P.dll", "int PeerGroupDelete(char*, char*)")
# 呼び出し: PeerGroupDelete(pwzIdentity, pwzGroupPeerName)
# pwzIdentity : LPCWSTR -> "char*"
# pwzGroupPeerName : LPCWSTR -> "char*"
# 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)。