GetLogContainerName

// clfsw32.dll
#include <windows.h>

BOOL GetLogContainerName(
    HANDLE hLog,
    DWORD cidLogicalContainer,
    LPCWSTR pwstrContainerName,
    DWORD cLenContainerName,
    DWORD* pcActualLenContainerName
);

<DllImport("clfsw32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetLogContainerName(
    hLog As IntPtr,   ' HANDLE
    cidLogicalContainer As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> pwstrContainerName As String,   ' LPCWSTR
    cLenContainerName As UInteger,   ' DWORD
    ByRef pcActualLenContainerName As UInteger   ' DWORD* in/out
) As Boolean
End Function

' hLog : HANDLE
' cidLogicalContainer : DWORD
' pwstrContainerName : LPCWSTR
' cLenContainerName : DWORD
' pcActualLenContainerName : DWORD* in/out
Declare PtrSafe Function GetLogContainerName Lib "clfsw32" ( _
    ByVal hLog As LongPtr, _
    ByVal cidLogicalContainer As Long, _
    ByVal pwstrContainerName As LongPtr, _
    ByVal cLenContainerName As Long, _
    ByRef pcActualLenContainerName 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

GetLogContainerName = ctypes.windll.clfsw32.GetLogContainerName
GetLogContainerName.restype = wintypes.BOOL
GetLogContainerName.argtypes = [
    wintypes.HANDLE,  # hLog : HANDLE
    wintypes.DWORD,  # cidLogicalContainer : DWORD
    wintypes.LPCWSTR,  # pwstrContainerName : LPCWSTR
    wintypes.DWORD,  # cLenContainerName : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcActualLenContainerName : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('clfsw32.dll')
GetLogContainerName = Fiddle::Function.new(
  lib['GetLogContainerName'],
  [
    Fiddle::TYPE_VOIDP,  # hLog : HANDLE
    -Fiddle::TYPE_INT,  # cidLogicalContainer : DWORD
    Fiddle::TYPE_VOIDP,  # pwstrContainerName : LPCWSTR
    -Fiddle::TYPE_INT,  # cLenContainerName : DWORD
    Fiddle::TYPE_VOIDP,  # pcActualLenContainerName : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clfsw32")]
extern "system" {
    fn GetLogContainerName(
        hLog: *mut core::ffi::c_void,  // HANDLE
        cidLogicalContainer: u32,  // DWORD
        pwstrContainerName: *const u16,  // LPCWSTR
        cLenContainerName: u32,  // DWORD
        pcActualLenContainerName: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("clfsw32.dll", SetLastError = true)]
public static extern bool GetLogContainerName(IntPtr hLog, uint cidLogicalContainer, [MarshalAs(UnmanagedType.LPWStr)] string pwstrContainerName, uint cLenContainerName, ref uint pcActualLenContainerName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'clfsw32_GetLogContainerName' -Namespace Win32 -PassThru
# $api::GetLogContainerName(hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, pcActualLenContainerName)

#uselib "clfsw32.dll"
#func global GetLogContainerName "GetLogContainerName" sptr, sptr, sptr, sptr, sptr
; GetLogContainerName hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, varptr(pcActualLenContainerName)   ; 戻り値は stat
; hLog : HANDLE -> "sptr"
; cidLogicalContainer : DWORD -> "sptr"
; pwstrContainerName : LPCWSTR -> "sptr"
; cLenContainerName : DWORD -> "sptr"
; pcActualLenContainerName : DWORD* in/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 "clfsw32.dll"
#cfunc global GetLogContainerName "GetLogContainerName" sptr, int, wstr, int, var
; res = GetLogContainerName(hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, pcActualLenContainerName)
; hLog : HANDLE -> "sptr"
; cidLogicalContainer : DWORD -> "int"
; pwstrContainerName : LPCWSTR -> "wstr"
; cLenContainerName : DWORD -> "int"
; pcActualLenContainerName : DWORD* in/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。

; BOOL GetLogContainerName(HANDLE hLog, DWORD cidLogicalContainer, LPCWSTR pwstrContainerName, DWORD cLenContainerName, DWORD* pcActualLenContainerName)
#uselib "clfsw32.dll"
#cfunc global GetLogContainerName "GetLogContainerName" intptr, int, wstr, int, var
; res = GetLogContainerName(hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, pcActualLenContainerName)
; hLog : HANDLE -> "intptr"
; cidLogicalContainer : DWORD -> "int"
; pwstrContainerName : LPCWSTR -> "wstr"
; cLenContainerName : DWORD -> "int"
; pcActualLenContainerName : DWORD* in/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 (
	clfsw32 = windows.NewLazySystemDLL("clfsw32.dll")
	procGetLogContainerName = clfsw32.NewProc("GetLogContainerName")
)

// hLog (HANDLE), cidLogicalContainer (DWORD), pwstrContainerName (LPCWSTR), cLenContainerName (DWORD), pcActualLenContainerName (DWORD* in/out)
r1, _, err := procGetLogContainerName.Call(
	uintptr(hLog),
	uintptr(cidLogicalContainer),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwstrContainerName))),
	uintptr(cLenContainerName),
	uintptr(pcActualLenContainerName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetLogContainerName(
  hLog: THandle;   // HANDLE
  cidLogicalContainer: DWORD;   // DWORD
  pwstrContainerName: PWideChar;   // LPCWSTR
  cLenContainerName: DWORD;   // DWORD
  pcActualLenContainerName: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'clfsw32.dll' name 'GetLogContainerName';

result := DllCall("clfsw32\GetLogContainerName"
    , "Ptr", hLog   ; HANDLE
    , "UInt", cidLogicalContainer   ; DWORD
    , "WStr", pwstrContainerName   ; LPCWSTR
    , "UInt", cLenContainerName   ; DWORD
    , "Ptr", pcActualLenContainerName   ; DWORD* in/out
    , "Int")   ; return: BOOL

●GetLogContainerName(hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, pcActualLenContainerName) = DLL("clfsw32.dll", "bool GetLogContainerName(void*, dword, char*, dword, void*)")
# 呼び出し: GetLogContainerName(hLog, cidLogicalContainer, pwstrContainerName, cLenContainerName, pcActualLenContainerName)
# hLog : HANDLE -> "void*"
# cidLogicalContainer : DWORD -> "dword"
# pwstrContainerName : LPCWSTR -> "char*"
# cLenContainerName : DWORD -> "dword"
# pcActualLenContainerName : DWORD* in/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)。