StrToInt64ExA

// SHLWAPI.dll  (ANSI / -A)
#include <windows.h>

BOOL StrToInt64ExA(
    LPCSTR pszString,
    INT dwFlags,
    LONGLONG* pllRet
);

<DllImport("SHLWAPI.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function StrToInt64ExA(
    <MarshalAs(UnmanagedType.LPStr)> pszString As String,   ' LPCSTR
    dwFlags As Integer,   ' INT
    <Out> ByRef pllRet As Long   ' LONGLONG* out
) As Boolean
End Function

' pszString : LPCSTR
' dwFlags : INT
' pllRet : LONGLONG* out
Declare PtrSafe Function StrToInt64ExA Lib "shlwapi" ( _
    ByVal pszString As String, _
    ByVal dwFlags As Long, _
    ByRef pllRet 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

StrToInt64ExA = ctypes.windll.shlwapi.StrToInt64ExA
StrToInt64ExA.restype = wintypes.BOOL
StrToInt64ExA.argtypes = [
    wintypes.LPCSTR,  # pszString : LPCSTR
    ctypes.c_int,  # dwFlags : INT
    ctypes.POINTER(ctypes.c_longlong),  # pllRet : LONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
StrToInt64ExA = Fiddle::Function.new(
  lib['StrToInt64ExA'],
  [
    Fiddle::TYPE_VOIDP,  # pszString : LPCSTR
    Fiddle::TYPE_INT,  # dwFlags : INT
    Fiddle::TYPE_VOIDP,  # pllRet : LONGLONG* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "shlwapi")]
extern "system" {
    fn StrToInt64ExA(
        pszString: *const u8,  // LPCSTR
        dwFlags: i32,  // INT
        pllRet: *mut i64  // LONGLONG* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHLWAPI.dll", CharSet = CharSet.Ansi)]
public static extern bool StrToInt64ExA([MarshalAs(UnmanagedType.LPStr)] string pszString, int dwFlags, out long pllRet);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_StrToInt64ExA' -Namespace Win32 -PassThru
# $api::StrToInt64ExA(pszString, dwFlags, pllRet)

#uselib "SHLWAPI.dll"
#func global StrToInt64ExA "StrToInt64ExA" sptr, sptr, sptr
; StrToInt64ExA pszString, dwFlags, varptr(pllRet)   ; 戻り値は stat
; pszString : LPCSTR -> "sptr"
; dwFlags : INT -> "sptr"
; pllRet : LONGLONG* 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 "SHLWAPI.dll"
#cfunc global StrToInt64ExA "StrToInt64ExA" str, int, var
; res = StrToInt64ExA(pszString, dwFlags, pllRet)
; pszString : LPCSTR -> "str"
; dwFlags : INT -> "int"
; pllRet : LONGLONG* 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 StrToInt64ExA(LPCSTR pszString, INT dwFlags, LONGLONG* pllRet)
#uselib "SHLWAPI.dll"
#cfunc global StrToInt64ExA "StrToInt64ExA" str, int, var
; res = StrToInt64ExA(pszString, dwFlags, pllRet)
; pszString : LPCSTR -> "str"
; dwFlags : INT -> "int"
; pllRet : LONGLONG* 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 (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procStrToInt64ExA = shlwapi.NewProc("StrToInt64ExA")
)

// pszString (LPCSTR), dwFlags (INT), pllRet (LONGLONG* out)
r1, _, err := procStrToInt64ExA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszString))),
	uintptr(dwFlags),
	uintptr(pllRet),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function StrToInt64ExA(
  pszString: PAnsiChar;   // LPCSTR
  dwFlags: Integer;   // INT
  pllRet: Pointer   // LONGLONG* out
): BOOL; stdcall;
  external 'SHLWAPI.dll' name 'StrToInt64ExA';

result := DllCall("SHLWAPI\StrToInt64ExA"
    , "AStr", pszString   ; LPCSTR
    , "Int", dwFlags   ; INT
    , "Ptr", pllRet   ; LONGLONG* out
    , "Int")   ; return: BOOL

●StrToInt64ExA(pszString, dwFlags, pllRet) = DLL("SHLWAPI.dll", "bool StrToInt64ExA(char*, int, void*)")
# 呼び出し: StrToInt64ExA(pszString, dwFlags, pllRet)
# pszString : LPCSTR -> "char*"
# dwFlags : INT -> "int"
# pllRet : LONGLONG* 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)。