JetBeginExternalBackup

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

INT JetBeginExternalBackup(
    DWORD grbit
);

<DllImport("ESENT.dll", ExactSpelling:=True)>
Public Shared Function JetBeginExternalBackup(
    grbit As UInteger   ' DWORD
) As Integer
End Function

' grbit : DWORD
Declare PtrSafe Function JetBeginExternalBackup Lib "esent" ( _
    ByVal grbit 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

JetBeginExternalBackup = ctypes.windll.esent.JetBeginExternalBackup
JetBeginExternalBackup.restype = ctypes.c_int
JetBeginExternalBackup.argtypes = [
    wintypes.DWORD,  # grbit : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetBeginExternalBackup = Fiddle::Function.new(
  lib['JetBeginExternalBackup'],
  [
    -Fiddle::TYPE_INT,  # grbit : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetBeginExternalBackup(
        grbit: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll")]
public static extern int JetBeginExternalBackup(uint grbit);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetBeginExternalBackup' -Namespace Win32 -PassThru
# $api::JetBeginExternalBackup(grbit)

#uselib "ESENT.dll"
#func global JetBeginExternalBackup "JetBeginExternalBackup" sptr
; JetBeginExternalBackup grbit   ; 戻り値は stat
; grbit : 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 "ESENT.dll"
#cfunc global JetBeginExternalBackup "JetBeginExternalBackup" int
; res = JetBeginExternalBackup(grbit)
; grbit : DWORD -> "int"

; INT JetBeginExternalBackup(DWORD grbit)
#uselib "ESENT.dll"
#cfunc global JetBeginExternalBackup "JetBeginExternalBackup" int
; res = JetBeginExternalBackup(grbit)
; grbit : DWORD -> "int"

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

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetBeginExternalBackup = esent.NewProc("JetBeginExternalBackup")
)

// grbit (DWORD)
r1, _, err := procJetBeginExternalBackup.Call(
	uintptr(grbit),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetBeginExternalBackup(
  grbit: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetBeginExternalBackup';

result := DllCall("ESENT\JetBeginExternalBackup"
    , "UInt", grbit   ; DWORD
    , "Int")   ; return: INT

●JetBeginExternalBackup(grbit) = DLL("ESENT.dll", "int JetBeginExternalBackup(dword)")
# 呼び出し: JetBeginExternalBackup(grbit)
# grbit : 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)。