CertSrvBackupGetDatabaseNamesW

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

HRESULT CertSrvBackupGetDatabaseNamesW(
    void* hbc,
    LPWSTR* ppwszzAttachmentInformation,
    DWORD* pcbSize
);

<DllImport("certadm.dll", ExactSpelling:=True)>
Public Shared Function CertSrvBackupGetDatabaseNamesW(
    hbc As IntPtr,   ' void*
    ppwszzAttachmentInformation As IntPtr,   ' LPWSTR* out
    <Out> ByRef pcbSize As UInteger   ' DWORD* out
) As Integer
End Function

' hbc : void*
' ppwszzAttachmentInformation : LPWSTR* out
' pcbSize : DWORD* out
Declare PtrSafe Function CertSrvBackupGetDatabaseNamesW Lib "certadm" ( _
    ByVal hbc As LongPtr, _
    ByVal ppwszzAttachmentInformation As LongPtr, _
    ByRef pcbSize 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

CertSrvBackupGetDatabaseNamesW = ctypes.windll.certadm.CertSrvBackupGetDatabaseNamesW
CertSrvBackupGetDatabaseNamesW.restype = ctypes.c_int
CertSrvBackupGetDatabaseNamesW.argtypes = [
    ctypes.POINTER(None),  # hbc : void*
    ctypes.c_void_p,  # ppwszzAttachmentInformation : LPWSTR* out
    ctypes.POINTER(wintypes.DWORD),  # pcbSize : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('certadm.dll')
CertSrvBackupGetDatabaseNamesW = Fiddle::Function.new(
  lib['CertSrvBackupGetDatabaseNamesW'],
  [
    Fiddle::TYPE_VOIDP,  # hbc : void*
    Fiddle::TYPE_VOIDP,  # ppwszzAttachmentInformation : LPWSTR* out
    Fiddle::TYPE_VOIDP,  # pcbSize : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "certadm")]
extern "system" {
    fn CertSrvBackupGetDatabaseNamesW(
        hbc: *mut (),  // void*
        ppwszzAttachmentInformation: *mut *mut u16,  // LPWSTR* out
        pcbSize: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("certadm.dll")]
public static extern int CertSrvBackupGetDatabaseNamesW(IntPtr hbc, IntPtr ppwszzAttachmentInformation, out uint pcbSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'certadm_CertSrvBackupGetDatabaseNamesW' -Namespace Win32 -PassThru
# $api::CertSrvBackupGetDatabaseNamesW(hbc, ppwszzAttachmentInformation, pcbSize)

#uselib "certadm.dll"
#func global CertSrvBackupGetDatabaseNamesW "CertSrvBackupGetDatabaseNamesW" sptr, sptr, sptr
; CertSrvBackupGetDatabaseNamesW hbc, varptr(ppwszzAttachmentInformation), varptr(pcbSize)   ; 戻り値は stat
; hbc : void* -> "sptr"
; ppwszzAttachmentInformation : LPWSTR* out -> "sptr"
; pcbSize : 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 "certadm.dll"
#cfunc global CertSrvBackupGetDatabaseNamesW "CertSrvBackupGetDatabaseNamesW" sptr, var, var
; res = CertSrvBackupGetDatabaseNamesW(hbc, ppwszzAttachmentInformation, pcbSize)
; hbc : void* -> "sptr"
; ppwszzAttachmentInformation : LPWSTR* out -> "var"
; pcbSize : 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 CertSrvBackupGetDatabaseNamesW(void* hbc, LPWSTR* ppwszzAttachmentInformation, DWORD* pcbSize)
#uselib "certadm.dll"
#cfunc global CertSrvBackupGetDatabaseNamesW "CertSrvBackupGetDatabaseNamesW" intptr, var, var
; res = CertSrvBackupGetDatabaseNamesW(hbc, ppwszzAttachmentInformation, pcbSize)
; hbc : void* -> "intptr"
; ppwszzAttachmentInformation : LPWSTR* out -> "var"
; pcbSize : 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 (
	certadm = windows.NewLazySystemDLL("certadm.dll")
	procCertSrvBackupGetDatabaseNamesW = certadm.NewProc("CertSrvBackupGetDatabaseNamesW")
)

// hbc (void*), ppwszzAttachmentInformation (LPWSTR* out), pcbSize (DWORD* out)
r1, _, err := procCertSrvBackupGetDatabaseNamesW.Call(
	uintptr(hbc),
	uintptr(ppwszzAttachmentInformation),
	uintptr(pcbSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CertSrvBackupGetDatabaseNamesW(
  hbc: Pointer;   // void*
  ppwszzAttachmentInformation: PPWideChar;   // LPWSTR* out
  pcbSize: Pointer   // DWORD* out
): Integer; stdcall;
  external 'certadm.dll' name 'CertSrvBackupGetDatabaseNamesW';

result := DllCall("certadm\CertSrvBackupGetDatabaseNamesW"
    , "Ptr", hbc   ; void*
    , "Ptr", ppwszzAttachmentInformation   ; LPWSTR* out
    , "Ptr", pcbSize   ; DWORD* out
    , "Int")   ; return: HRESULT

●CertSrvBackupGetDatabaseNamesW(hbc, ppwszzAttachmentInformation, pcbSize) = DLL("certadm.dll", "int CertSrvBackupGetDatabaseNamesW(void*, void*, void*)")
# 呼び出し: CertSrvBackupGetDatabaseNamesW(hbc, ppwszzAttachmentInformation, pcbSize)
# hbc : void* -> "void*"
# ppwszzAttachmentInformation : LPWSTR* out -> "void*"
# pcbSize : 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)。