BackupClusterDatabase

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

DWORD BackupClusterDatabase(
    HCLUSTER hCluster,
    LPCWSTR lpszPathName
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function BackupClusterDatabase(
    hCluster As IntPtr,   ' HCLUSTER
    <MarshalAs(UnmanagedType.LPWStr)> lpszPathName As String   ' LPCWSTR
) As UInteger
End Function

' hCluster : HCLUSTER
' lpszPathName : LPCWSTR
Declare PtrSafe Function BackupClusterDatabase Lib "clusapi" ( _
    ByVal hCluster As LongPtr, _
    ByVal lpszPathName 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

BackupClusterDatabase = ctypes.windll.clusapi.BackupClusterDatabase
BackupClusterDatabase.restype = wintypes.DWORD
BackupClusterDatabase.argtypes = [
    ctypes.c_ssize_t,  # hCluster : HCLUSTER
    wintypes.LPCWSTR,  # lpszPathName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
BackupClusterDatabase = Fiddle::Function.new(
  lib['BackupClusterDatabase'],
  [
    Fiddle::TYPE_INTPTR_T,  # hCluster : HCLUSTER
    Fiddle::TYPE_VOIDP,  # lpszPathName : LPCWSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn BackupClusterDatabase(
        hCluster: isize,  // HCLUSTER
        lpszPathName: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern uint BackupClusterDatabase(IntPtr hCluster, [MarshalAs(UnmanagedType.LPWStr)] string lpszPathName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_BackupClusterDatabase' -Namespace Win32 -PassThru
# $api::BackupClusterDatabase(hCluster, lpszPathName)

#uselib "CLUSAPI.dll"
#func global BackupClusterDatabase "BackupClusterDatabase" sptr, sptr
; BackupClusterDatabase hCluster, lpszPathName   ; 戻り値は stat
; hCluster : HCLUSTER -> "sptr"
; lpszPathName : 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 "CLUSAPI.dll"
#cfunc global BackupClusterDatabase "BackupClusterDatabase" sptr, wstr
; res = BackupClusterDatabase(hCluster, lpszPathName)
; hCluster : HCLUSTER -> "sptr"
; lpszPathName : LPCWSTR -> "wstr"

; DWORD BackupClusterDatabase(HCLUSTER hCluster, LPCWSTR lpszPathName)
#uselib "CLUSAPI.dll"
#cfunc global BackupClusterDatabase "BackupClusterDatabase" intptr, wstr
; res = BackupClusterDatabase(hCluster, lpszPathName)
; hCluster : HCLUSTER -> "intptr"
; lpszPathName : LPCWSTR -> "wstr"

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procBackupClusterDatabase = clusapi.NewProc("BackupClusterDatabase")
)

// hCluster (HCLUSTER), lpszPathName (LPCWSTR)
r1, _, err := procBackupClusterDatabase.Call(
	uintptr(hCluster),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszPathName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function BackupClusterDatabase(
  hCluster: NativeInt;   // HCLUSTER
  lpszPathName: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'CLUSAPI.dll' name 'BackupClusterDatabase';

result := DllCall("CLUSAPI\BackupClusterDatabase"
    , "Ptr", hCluster   ; HCLUSTER
    , "WStr", lpszPathName   ; LPCWSTR
    , "UInt")   ; return: DWORD

●BackupClusterDatabase(hCluster, lpszPathName) = DLL("CLUSAPI.dll", "dword BackupClusterDatabase(int, char*)")
# 呼び出し: BackupClusterDatabase(hCluster, lpszPathName)
# hCluster : HCLUSTER -> "int"
# lpszPathName : 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)。