MappingGetServices

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

HRESULT MappingGetServices(
    MAPPING_ENUM_OPTIONS* pOptions,   // optional
    MAPPING_SERVICE_INFO** prgServices,
    DWORD* pdwServicesCount
);

<DllImport("elscore.dll", ExactSpelling:=True)>
Public Shared Function MappingGetServices(
    pOptions As IntPtr,   ' MAPPING_ENUM_OPTIONS* optional
    prgServices As IntPtr,   ' MAPPING_SERVICE_INFO** out
    <Out> ByRef pdwServicesCount As UInteger   ' DWORD* out
) As Integer
End Function

' pOptions : MAPPING_ENUM_OPTIONS* optional
' prgServices : MAPPING_SERVICE_INFO** out
' pdwServicesCount : DWORD* out
Declare PtrSafe Function MappingGetServices Lib "elscore" ( _
    ByVal pOptions As LongPtr, _
    ByVal prgServices As LongPtr, _
    ByRef pdwServicesCount 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

MappingGetServices = ctypes.windll.elscore.MappingGetServices
MappingGetServices.restype = ctypes.c_int
MappingGetServices.argtypes = [
    ctypes.c_void_p,  # pOptions : MAPPING_ENUM_OPTIONS* optional
    ctypes.c_void_p,  # prgServices : MAPPING_SERVICE_INFO** out
    ctypes.POINTER(wintypes.DWORD),  # pdwServicesCount : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('elscore.dll')
MappingGetServices = Fiddle::Function.new(
  lib['MappingGetServices'],
  [
    Fiddle::TYPE_VOIDP,  # pOptions : MAPPING_ENUM_OPTIONS* optional
    Fiddle::TYPE_VOIDP,  # prgServices : MAPPING_SERVICE_INFO** out
    Fiddle::TYPE_VOIDP,  # pdwServicesCount : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "elscore")]
extern "system" {
    fn MappingGetServices(
        pOptions: *mut MAPPING_ENUM_OPTIONS,  // MAPPING_ENUM_OPTIONS* optional
        prgServices: *mut *mut MAPPING_SERVICE_INFO,  // MAPPING_SERVICE_INFO** out
        pdwServicesCount: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("elscore.dll")]
public static extern int MappingGetServices(IntPtr pOptions, IntPtr prgServices, out uint pdwServicesCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'elscore_MappingGetServices' -Namespace Win32 -PassThru
# $api::MappingGetServices(pOptions, prgServices, pdwServicesCount)

#uselib "elscore.dll"
#func global MappingGetServices "MappingGetServices" sptr, sptr, sptr
; MappingGetServices varptr(pOptions), varptr(prgServices), varptr(pdwServicesCount)   ; 戻り値は stat
; pOptions : MAPPING_ENUM_OPTIONS* optional -> "sptr"
; prgServices : MAPPING_SERVICE_INFO** out -> "sptr"
; pdwServicesCount : DWORD* 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 "elscore.dll"
#cfunc global MappingGetServices "MappingGetServices" var, var, var
; res = MappingGetServices(pOptions, prgServices, pdwServicesCount)
; pOptions : MAPPING_ENUM_OPTIONS* optional -> "var"
; prgServices : MAPPING_SERVICE_INFO** out -> "var"
; pdwServicesCount : DWORD* 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 MappingGetServices(MAPPING_ENUM_OPTIONS* pOptions, MAPPING_SERVICE_INFO** prgServices, DWORD* pdwServicesCount)
#uselib "elscore.dll"
#cfunc global MappingGetServices "MappingGetServices" var, var, var
; res = MappingGetServices(pOptions, prgServices, pdwServicesCount)
; pOptions : MAPPING_ENUM_OPTIONS* optional -> "var"
; prgServices : MAPPING_SERVICE_INFO** out -> "var"
; pdwServicesCount : DWORD* 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 (
	elscore = windows.NewLazySystemDLL("elscore.dll")
	procMappingGetServices = elscore.NewProc("MappingGetServices")
)

// pOptions (MAPPING_ENUM_OPTIONS* optional), prgServices (MAPPING_SERVICE_INFO** out), pdwServicesCount (DWORD* out)
r1, _, err := procMappingGetServices.Call(
	uintptr(pOptions),
	uintptr(prgServices),
	uintptr(pdwServicesCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MappingGetServices(
  pOptions: Pointer;   // MAPPING_ENUM_OPTIONS* optional
  prgServices: Pointer;   // MAPPING_SERVICE_INFO** out
  pdwServicesCount: Pointer   // DWORD* out
): Integer; stdcall;
  external 'elscore.dll' name 'MappingGetServices';

result := DllCall("elscore\MappingGetServices"
    , "Ptr", pOptions   ; MAPPING_ENUM_OPTIONS* optional
    , "Ptr", prgServices   ; MAPPING_SERVICE_INFO** out
    , "Ptr", pdwServicesCount   ; DWORD* out
    , "Int")   ; return: HRESULT

●MappingGetServices(pOptions, prgServices, pdwServicesCount) = DLL("elscore.dll", "int MappingGetServices(void*, void*, void*)")
# 呼び出し: MappingGetServices(pOptions, prgServices, pdwServicesCount)
# pOptions : MAPPING_ENUM_OPTIONS* optional -> "void*"
# prgServices : MAPPING_SERVICE_INFO** out -> "void*"
# pdwServicesCount : DWORD* 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)。