RtmGetEnumRoutes

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

DWORD RtmGetEnumRoutes(
    INT_PTR RtmRegHandle,
    INT_PTR EnumHandle,
    DWORD* NumRoutes,
    INT_PTR* RouteHandles
);

<DllImport("rtm.dll", ExactSpelling:=True)>
Public Shared Function RtmGetEnumRoutes(
    RtmRegHandle As IntPtr,   ' INT_PTR
    EnumHandle As IntPtr,   ' INT_PTR
    ByRef NumRoutes As UInteger,   ' DWORD* in/out
    ByRef RouteHandles As IntPtr   ' INT_PTR* in/out
) As UInteger
End Function

' RtmRegHandle : INT_PTR
' EnumHandle : INT_PTR
' NumRoutes : DWORD* in/out
' RouteHandles : INT_PTR* in/out
Declare PtrSafe Function RtmGetEnumRoutes Lib "rtm" ( _
    ByVal RtmRegHandle As LongPtr, _
    ByVal EnumHandle As LongPtr, _
    ByRef NumRoutes As Long, _
    ByRef RouteHandles 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

RtmGetEnumRoutes = ctypes.windll.rtm.RtmGetEnumRoutes
RtmGetEnumRoutes.restype = wintypes.DWORD
RtmGetEnumRoutes.argtypes = [
    ctypes.c_ssize_t,  # RtmRegHandle : INT_PTR
    ctypes.c_ssize_t,  # EnumHandle : INT_PTR
    ctypes.POINTER(wintypes.DWORD),  # NumRoutes : DWORD* in/out
    ctypes.POINTER(ctypes.c_ssize_t),  # RouteHandles : INT_PTR* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('rtm.dll')
RtmGetEnumRoutes = Fiddle::Function.new(
  lib['RtmGetEnumRoutes'],
  [
    Fiddle::TYPE_INTPTR_T,  # RtmRegHandle : INT_PTR
    Fiddle::TYPE_INTPTR_T,  # EnumHandle : INT_PTR
    Fiddle::TYPE_VOIDP,  # NumRoutes : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # RouteHandles : INT_PTR* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rtm")]
extern "system" {
    fn RtmGetEnumRoutes(
        RtmRegHandle: isize,  // INT_PTR
        EnumHandle: isize,  // INT_PTR
        NumRoutes: *mut u32,  // DWORD* in/out
        RouteHandles: *mut isize  // INT_PTR* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("rtm.dll")]
public static extern uint RtmGetEnumRoutes(IntPtr RtmRegHandle, IntPtr EnumHandle, ref uint NumRoutes, ref IntPtr RouteHandles);
"@
$api = Add-Type -MemberDefinition $sig -Name 'rtm_RtmGetEnumRoutes' -Namespace Win32 -PassThru
# $api::RtmGetEnumRoutes(RtmRegHandle, EnumHandle, NumRoutes, RouteHandles)

#uselib "rtm.dll"
#func global RtmGetEnumRoutes "RtmGetEnumRoutes" sptr, sptr, sptr, sptr
; RtmGetEnumRoutes RtmRegHandle, EnumHandle, varptr(NumRoutes), varptr(RouteHandles)   ; 戻り値は stat
; RtmRegHandle : INT_PTR -> "sptr"
; EnumHandle : INT_PTR -> "sptr"
; NumRoutes : DWORD* in/out -> "sptr"
; RouteHandles : INT_PTR* in/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 "rtm.dll"
#cfunc global RtmGetEnumRoutes "RtmGetEnumRoutes" sptr, sptr, var, var
; res = RtmGetEnumRoutes(RtmRegHandle, EnumHandle, NumRoutes, RouteHandles)
; RtmRegHandle : INT_PTR -> "sptr"
; EnumHandle : INT_PTR -> "sptr"
; NumRoutes : DWORD* in/out -> "var"
; RouteHandles : INT_PTR* in/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。

; DWORD RtmGetEnumRoutes(INT_PTR RtmRegHandle, INT_PTR EnumHandle, DWORD* NumRoutes, INT_PTR* RouteHandles)
#uselib "rtm.dll"
#cfunc global RtmGetEnumRoutes "RtmGetEnumRoutes" intptr, intptr, var, var
; res = RtmGetEnumRoutes(RtmRegHandle, EnumHandle, NumRoutes, RouteHandles)
; RtmRegHandle : INT_PTR -> "intptr"
; EnumHandle : INT_PTR -> "intptr"
; NumRoutes : DWORD* in/out -> "var"
; RouteHandles : INT_PTR* in/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 (
	rtm = windows.NewLazySystemDLL("rtm.dll")
	procRtmGetEnumRoutes = rtm.NewProc("RtmGetEnumRoutes")
)

// RtmRegHandle (INT_PTR), EnumHandle (INT_PTR), NumRoutes (DWORD* in/out), RouteHandles (INT_PTR* in/out)
r1, _, err := procRtmGetEnumRoutes.Call(
	uintptr(RtmRegHandle),
	uintptr(EnumHandle),
	uintptr(NumRoutes),
	uintptr(RouteHandles),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RtmGetEnumRoutes(
  RtmRegHandle: NativeInt;   // INT_PTR
  EnumHandle: NativeInt;   // INT_PTR
  NumRoutes: Pointer;   // DWORD* in/out
  RouteHandles: Pointer   // INT_PTR* in/out
): DWORD; stdcall;
  external 'rtm.dll' name 'RtmGetEnumRoutes';

result := DllCall("rtm\RtmGetEnumRoutes"
    , "Ptr", RtmRegHandle   ; INT_PTR
    , "Ptr", EnumHandle   ; INT_PTR
    , "Ptr", NumRoutes   ; DWORD* in/out
    , "Ptr", RouteHandles   ; INT_PTR* in/out
    , "UInt")   ; return: DWORD

●RtmGetEnumRoutes(RtmRegHandle, EnumHandle, NumRoutes, RouteHandles) = DLL("rtm.dll", "dword RtmGetEnumRoutes(int, int, void*, void*)")
# 呼び出し: RtmGetEnumRoutes(RtmRegHandle, EnumHandle, NumRoutes, RouteHandles)
# RtmRegHandle : INT_PTR -> "int"
# EnumHandle : INT_PTR -> "int"
# NumRoutes : DWORD* in/out -> "void*"
# RouteHandles : INT_PTR* in/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)。