FhServiceStartBackup

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

HRESULT FhServiceStartBackup(
    FH_SERVICE_PIPE_HANDLE Pipe,
    BOOL LowPriorityIo
);

<DllImport("fhsvcctl.dll", ExactSpelling:=True)>
Public Shared Function FhServiceStartBackup(
    Pipe As IntPtr,   ' FH_SERVICE_PIPE_HANDLE
    LowPriorityIo As Boolean   ' BOOL
) As Integer
End Function

' Pipe : FH_SERVICE_PIPE_HANDLE
' LowPriorityIo : BOOL
Declare PtrSafe Function FhServiceStartBackup Lib "fhsvcctl" ( _
    ByVal Pipe As LongPtr, _
    ByVal LowPriorityIo 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

FhServiceStartBackup = ctypes.windll.fhsvcctl.FhServiceStartBackup
FhServiceStartBackup.restype = ctypes.c_int
FhServiceStartBackup.argtypes = [
    wintypes.HANDLE,  # Pipe : FH_SERVICE_PIPE_HANDLE
    wintypes.BOOL,  # LowPriorityIo : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fhsvcctl.dll')
FhServiceStartBackup = Fiddle::Function.new(
  lib['FhServiceStartBackup'],
  [
    Fiddle::TYPE_VOIDP,  # Pipe : FH_SERVICE_PIPE_HANDLE
    Fiddle::TYPE_INT,  # LowPriorityIo : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "fhsvcctl")]
extern "system" {
    fn FhServiceStartBackup(
        Pipe: *mut core::ffi::c_void,  // FH_SERVICE_PIPE_HANDLE
        LowPriorityIo: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fhsvcctl.dll")]
public static extern int FhServiceStartBackup(IntPtr Pipe, bool LowPriorityIo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fhsvcctl_FhServiceStartBackup' -Namespace Win32 -PassThru
# $api::FhServiceStartBackup(Pipe, LowPriorityIo)

#uselib "fhsvcctl.dll"
#func global FhServiceStartBackup "FhServiceStartBackup" sptr, sptr
; FhServiceStartBackup Pipe, LowPriorityIo   ; 戻り値は stat
; Pipe : FH_SERVICE_PIPE_HANDLE -> "sptr"
; LowPriorityIo : BOOL -> "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 "fhsvcctl.dll"
#cfunc global FhServiceStartBackup "FhServiceStartBackup" sptr, int
; res = FhServiceStartBackup(Pipe, LowPriorityIo)
; Pipe : FH_SERVICE_PIPE_HANDLE -> "sptr"
; LowPriorityIo : BOOL -> "int"

; HRESULT FhServiceStartBackup(FH_SERVICE_PIPE_HANDLE Pipe, BOOL LowPriorityIo)
#uselib "fhsvcctl.dll"
#cfunc global FhServiceStartBackup "FhServiceStartBackup" intptr, int
; res = FhServiceStartBackup(Pipe, LowPriorityIo)
; Pipe : FH_SERVICE_PIPE_HANDLE -> "intptr"
; LowPriorityIo : BOOL -> "int"

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

var (
	fhsvcctl = windows.NewLazySystemDLL("fhsvcctl.dll")
	procFhServiceStartBackup = fhsvcctl.NewProc("FhServiceStartBackup")
)

// Pipe (FH_SERVICE_PIPE_HANDLE), LowPriorityIo (BOOL)
r1, _, err := procFhServiceStartBackup.Call(
	uintptr(Pipe),
	uintptr(LowPriorityIo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function FhServiceStartBackup(
  Pipe: THandle;   // FH_SERVICE_PIPE_HANDLE
  LowPriorityIo: BOOL   // BOOL
): Integer; stdcall;
  external 'fhsvcctl.dll' name 'FhServiceStartBackup';

result := DllCall("fhsvcctl\FhServiceStartBackup"
    , "Ptr", Pipe   ; FH_SERVICE_PIPE_HANDLE
    , "Int", LowPriorityIo   ; BOOL
    , "Int")   ; return: HRESULT

●FhServiceStartBackup(Pipe, LowPriorityIo) = DLL("fhsvcctl.dll", "int FhServiceStartBackup(void*, bool)")
# 呼び出し: FhServiceStartBackup(Pipe, LowPriorityIo)
# Pipe : FH_SERVICE_PIPE_HANDLE -> "void*"
# LowPriorityIo : BOOL -> "bool"
# 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)。