SetFileValidData

// KERNEL32.dll
#include <windows.h>

BOOL SetFileValidData(
    HANDLE hFile,
    LONGLONG ValidDataLength
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetFileValidData(
    hFile As IntPtr,   ' HANDLE
    ValidDataLength As Long   ' LONGLONG
) As Boolean
End Function

' hFile : HANDLE
' ValidDataLength : LONGLONG
Declare PtrSafe Function SetFileValidData Lib "kernel32" ( _
    ByVal hFile As LongPtr, _
    ByVal ValidDataLength As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetFileValidData = ctypes.windll.kernel32.SetFileValidData
SetFileValidData.restype = wintypes.BOOL
SetFileValidData.argtypes = [
    wintypes.HANDLE,  # hFile : HANDLE
    ctypes.c_longlong,  # ValidDataLength : LONGLONG
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetFileValidData = Fiddle::Function.new(
  lib['SetFileValidData'],
  [
    Fiddle::TYPE_VOIDP,  # hFile : HANDLE
    Fiddle::TYPE_LONG_LONG,  # ValidDataLength : LONGLONG
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetFileValidData(
        hFile: *mut core::ffi::c_void,  // HANDLE
        ValidDataLength: i64  // LONGLONG
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool SetFileValidData(IntPtr hFile, long ValidDataLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetFileValidData' -Namespace Win32 -PassThru
# $api::SetFileValidData(hFile, ValidDataLength)

#uselib "KERNEL32.dll"
#func global SetFileValidData "SetFileValidData" sptr, sptr
; SetFileValidData hFile, ValidDataLength   ; 戻り値は stat
; hFile : HANDLE -> "sptr"
; ValidDataLength : LONGLONG -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "KERNEL32.dll"
#cfunc global SetFileValidData "SetFileValidData" sptr, int64
; res = SetFileValidData(hFile, ValidDataLength)
; hFile : HANDLE -> "sptr"
; ValidDataLength : LONGLONG -> "int64"
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; BOOL SetFileValidData(HANDLE hFile, LONGLONG ValidDataLength)
#uselib "KERNEL32.dll"
#cfunc global SetFileValidData "SetFileValidData" intptr, int64
; res = SetFileValidData(hFile, ValidDataLength)
; hFile : HANDLE -> "intptr"
; ValidDataLength : LONGLONG -> "int64"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSetFileValidData = kernel32.NewProc("SetFileValidData")
)

// hFile (HANDLE), ValidDataLength (LONGLONG)
r1, _, err := procSetFileValidData.Call(
	uintptr(hFile),
	uintptr(ValidDataLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetFileValidData(
  hFile: THandle;   // HANDLE
  ValidDataLength: Int64   // LONGLONG
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetFileValidData';

result := DllCall("KERNEL32\SetFileValidData"
    , "Ptr", hFile   ; HANDLE
    , "Int64", ValidDataLength   ; LONGLONG
    , "Int")   ; return: BOOL

●SetFileValidData(hFile, ValidDataLength) = DLL("KERNEL32.dll", "bool SetFileValidData(void*, int64)")
# 呼び出し: SetFileValidData(hFile, ValidDataLength)
# hFile : HANDLE -> "void*"
# ValidDataLength : LONGLONG -> "int64"
# 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)。