WinHttpTimeFromSystemTime

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

BOOL WinHttpTimeFromSystemTime(
    const SYSTEMTIME* pst,
    LPWSTR pwszTime
);

<DllImport("WINHTTP.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WinHttpTimeFromSystemTime(
    pst As IntPtr,   ' SYSTEMTIME*
    <MarshalAs(UnmanagedType.LPWStr)> pwszTime As System.Text.StringBuilder   ' LPWSTR out
) As Boolean
End Function

' pst : SYSTEMTIME*
' pwszTime : LPWSTR out
Declare PtrSafe Function WinHttpTimeFromSystemTime Lib "winhttp" ( _
    ByVal pst As LongPtr, _
    ByVal pwszTime 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

WinHttpTimeFromSystemTime = ctypes.windll.winhttp.WinHttpTimeFromSystemTime
WinHttpTimeFromSystemTime.restype = wintypes.BOOL
WinHttpTimeFromSystemTime.argtypes = [
    ctypes.c_void_p,  # pst : SYSTEMTIME*
    wintypes.LPWSTR,  # pwszTime : LPWSTR out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpTimeFromSystemTime = Fiddle::Function.new(
  lib['WinHttpTimeFromSystemTime'],
  [
    Fiddle::TYPE_VOIDP,  # pst : SYSTEMTIME*
    Fiddle::TYPE_VOIDP,  # pwszTime : LPWSTR out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpTimeFromSystemTime(
        pst: *const SYSTEMTIME,  // SYSTEMTIME*
        pwszTime: *mut u16  // LPWSTR out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINHTTP.dll", SetLastError = true)]
public static extern bool WinHttpTimeFromSystemTime(IntPtr pst, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pwszTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpTimeFromSystemTime' -Namespace Win32 -PassThru
# $api::WinHttpTimeFromSystemTime(pst, pwszTime)

#uselib "WINHTTP.dll"
#func global WinHttpTimeFromSystemTime "WinHttpTimeFromSystemTime" sptr, sptr
; WinHttpTimeFromSystemTime varptr(pst), varptr(pwszTime)   ; 戻り値は stat
; pst : SYSTEMTIME* -> "sptr"
; pwszTime : LPWSTR 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 "WINHTTP.dll"
#cfunc global WinHttpTimeFromSystemTime "WinHttpTimeFromSystemTime" var, var
; res = WinHttpTimeFromSystemTime(pst, pwszTime)
; pst : SYSTEMTIME* -> "var"
; pwszTime : LPWSTR 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 WinHttpTimeFromSystemTime(SYSTEMTIME* pst, LPWSTR pwszTime)
#uselib "WINHTTP.dll"
#cfunc global WinHttpTimeFromSystemTime "WinHttpTimeFromSystemTime" var, var
; res = WinHttpTimeFromSystemTime(pst, pwszTime)
; pst : SYSTEMTIME* -> "var"
; pwszTime : LPWSTR 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 (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpTimeFromSystemTime = winhttp.NewProc("WinHttpTimeFromSystemTime")
)

// pst (SYSTEMTIME*), pwszTime (LPWSTR out)
r1, _, err := procWinHttpTimeFromSystemTime.Call(
	uintptr(pst),
	uintptr(pwszTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WinHttpTimeFromSystemTime(
  pst: Pointer;   // SYSTEMTIME*
  pwszTime: PWideChar   // LPWSTR out
): BOOL; stdcall;
  external 'WINHTTP.dll' name 'WinHttpTimeFromSystemTime';

result := DllCall("WINHTTP\WinHttpTimeFromSystemTime"
    , "Ptr", pst   ; SYSTEMTIME*
    , "Ptr", pwszTime   ; LPWSTR out
    , "Int")   ; return: BOOL

●WinHttpTimeFromSystemTime(pst, pwszTime) = DLL("WINHTTP.dll", "bool WinHttpTimeFromSystemTime(void*, char*)")
# 呼び出し: WinHttpTimeFromSystemTime(pst, pwszTime)
# pst : SYSTEMTIME* -> "void*"
# pwszTime : LPWSTR out -> "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)。