MgmGetNextMfeStats

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

DWORD MgmGetNextMfeStats(
    MIB_IPMCAST_MFE* pimmStart,
    DWORD* pdwBufferSize,
    BYTE* pbBuffer,
    DWORD* pdwNumEntries,
    DWORD dwFlags
);

<DllImport("rtm.dll", ExactSpelling:=True)>
Public Shared Function MgmGetNextMfeStats(
    pimmStart As IntPtr,   ' MIB_IPMCAST_MFE* in/out
    ByRef pdwBufferSize As UInteger,   ' DWORD* in/out
    pbBuffer As IntPtr,   ' BYTE* in/out
    ByRef pdwNumEntries As UInteger,   ' DWORD* in/out
    dwFlags As UInteger   ' DWORD
) As UInteger
End Function

' pimmStart : MIB_IPMCAST_MFE* in/out
' pdwBufferSize : DWORD* in/out
' pbBuffer : BYTE* in/out
' pdwNumEntries : DWORD* in/out
' dwFlags : DWORD
Declare PtrSafe Function MgmGetNextMfeStats Lib "rtm" ( _
    ByVal pimmStart As LongPtr, _
    ByRef pdwBufferSize As Long, _
    ByVal pbBuffer As LongPtr, _
    ByRef pdwNumEntries As Long, _
    ByVal dwFlags 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

MgmGetNextMfeStats = ctypes.windll.rtm.MgmGetNextMfeStats
MgmGetNextMfeStats.restype = wintypes.DWORD
MgmGetNextMfeStats.argtypes = [
    ctypes.c_void_p,  # pimmStart : MIB_IPMCAST_MFE* in/out
    ctypes.POINTER(wintypes.DWORD),  # pdwBufferSize : DWORD* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pbBuffer : BYTE* in/out
    ctypes.POINTER(wintypes.DWORD),  # pdwNumEntries : DWORD* in/out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('rtm.dll')
MgmGetNextMfeStats = Fiddle::Function.new(
  lib['MgmGetNextMfeStats'],
  [
    Fiddle::TYPE_VOIDP,  # pimmStart : MIB_IPMCAST_MFE* in/out
    Fiddle::TYPE_VOIDP,  # pdwBufferSize : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pbBuffer : BYTE* in/out
    Fiddle::TYPE_VOIDP,  # pdwNumEntries : DWORD* in/out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rtm")]
extern "system" {
    fn MgmGetNextMfeStats(
        pimmStart: *mut MIB_IPMCAST_MFE,  // MIB_IPMCAST_MFE* in/out
        pdwBufferSize: *mut u32,  // DWORD* in/out
        pbBuffer: *mut u8,  // BYTE* in/out
        pdwNumEntries: *mut u32,  // DWORD* in/out
        dwFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("rtm.dll")]
public static extern uint MgmGetNextMfeStats(IntPtr pimmStart, ref uint pdwBufferSize, IntPtr pbBuffer, ref uint pdwNumEntries, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'rtm_MgmGetNextMfeStats' -Namespace Win32 -PassThru
# $api::MgmGetNextMfeStats(pimmStart, pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)

#uselib "rtm.dll"
#func global MgmGetNextMfeStats "MgmGetNextMfeStats" sptr, sptr, sptr, sptr, sptr
; MgmGetNextMfeStats varptr(pimmStart), varptr(pdwBufferSize), varptr(pbBuffer), varptr(pdwNumEntries), dwFlags   ; 戻り値は stat
; pimmStart : MIB_IPMCAST_MFE* in/out -> "sptr"
; pdwBufferSize : DWORD* in/out -> "sptr"
; pbBuffer : BYTE* in/out -> "sptr"
; pdwNumEntries : DWORD* in/out -> "sptr"
; dwFlags : 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 "rtm.dll"
#cfunc global MgmGetNextMfeStats "MgmGetNextMfeStats" var, var, var, var, int
; res = MgmGetNextMfeStats(pimmStart, pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
; pimmStart : MIB_IPMCAST_MFE* in/out -> "var"
; pdwBufferSize : DWORD* in/out -> "var"
; pbBuffer : BYTE* in/out -> "var"
; pdwNumEntries : DWORD* in/out -> "var"
; dwFlags : 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。

; DWORD MgmGetNextMfeStats(MIB_IPMCAST_MFE* pimmStart, DWORD* pdwBufferSize, BYTE* pbBuffer, DWORD* pdwNumEntries, DWORD dwFlags)
#uselib "rtm.dll"
#cfunc global MgmGetNextMfeStats "MgmGetNextMfeStats" var, var, var, var, int
; res = MgmGetNextMfeStats(pimmStart, pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
; pimmStart : MIB_IPMCAST_MFE* in/out -> "var"
; pdwBufferSize : DWORD* in/out -> "var"
; pbBuffer : BYTE* in/out -> "var"
; pdwNumEntries : DWORD* in/out -> "var"
; dwFlags : 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 (
	rtm = windows.NewLazySystemDLL("rtm.dll")
	procMgmGetNextMfeStats = rtm.NewProc("MgmGetNextMfeStats")
)

// pimmStart (MIB_IPMCAST_MFE* in/out), pdwBufferSize (DWORD* in/out), pbBuffer (BYTE* in/out), pdwNumEntries (DWORD* in/out), dwFlags (DWORD)
r1, _, err := procMgmGetNextMfeStats.Call(
	uintptr(pimmStart),
	uintptr(pdwBufferSize),
	uintptr(pbBuffer),
	uintptr(pdwNumEntries),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MgmGetNextMfeStats(
  pimmStart: Pointer;   // MIB_IPMCAST_MFE* in/out
  pdwBufferSize: Pointer;   // DWORD* in/out
  pbBuffer: Pointer;   // BYTE* in/out
  pdwNumEntries: Pointer;   // DWORD* in/out
  dwFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'rtm.dll' name 'MgmGetNextMfeStats';

result := DllCall("rtm\MgmGetNextMfeStats"
    , "Ptr", pimmStart   ; MIB_IPMCAST_MFE* in/out
    , "Ptr", pdwBufferSize   ; DWORD* in/out
    , "Ptr", pbBuffer   ; BYTE* in/out
    , "Ptr", pdwNumEntries   ; DWORD* in/out
    , "UInt", dwFlags   ; DWORD
    , "UInt")   ; return: DWORD

●MgmGetNextMfeStats(pimmStart, pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags) = DLL("rtm.dll", "dword MgmGetNextMfeStats(void*, void*, void*, void*, dword)")
# 呼び出し: MgmGetNextMfeStats(pimmStart, pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
# pimmStart : MIB_IPMCAST_MFE* in/out -> "void*"
# pdwBufferSize : DWORD* in/out -> "void*"
# pbBuffer : BYTE* in/out -> "void*"
# pdwNumEntries : DWORD* in/out -> "void*"
# dwFlags : 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)。