UrlHashW

// SHLWAPI.dll  (Unicode / -W)
#include <windows.h>

HRESULT UrlHashW(
    LPCWSTR pszUrl,
    BYTE* pbHash,
    DWORD cbHash
);

<DllImport("SHLWAPI.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function UrlHashW(
    <MarshalAs(UnmanagedType.LPWStr)> pszUrl As String,   ' LPCWSTR
    pbHash As IntPtr,   ' BYTE* out
    cbHash As UInteger   ' DWORD
) As Integer
End Function

' pszUrl : LPCWSTR
' pbHash : BYTE* out
' cbHash : DWORD
Declare PtrSafe Function UrlHashW Lib "shlwapi" ( _
    ByVal pszUrl As LongPtr, _
    ByVal pbHash As LongPtr, _
    ByVal cbHash As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

UrlHashW = ctypes.windll.shlwapi.UrlHashW
UrlHashW.restype = ctypes.c_int
UrlHashW.argtypes = [
    wintypes.LPCWSTR,  # pszUrl : LPCWSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pbHash : BYTE* out
    wintypes.DWORD,  # cbHash : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
UrlHashW = Fiddle::Function.new(
  lib['UrlHashW'],
  [
    Fiddle::TYPE_VOIDP,  # pszUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pbHash : BYTE* out
    -Fiddle::TYPE_INT,  # cbHash : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "shlwapi")]
extern "system" {
    fn UrlHashW(
        pszUrl: *const u16,  // LPCWSTR
        pbHash: *mut u8,  // BYTE* out
        cbHash: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll", CharSet = CharSet.Unicode)]
public static extern int UrlHashW([MarshalAs(UnmanagedType.LPWStr)] string pszUrl, IntPtr pbHash, uint cbHash);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_UrlHashW' -Namespace Win32 -PassThru
# $api::UrlHashW(pszUrl, pbHash, cbHash)

#uselib "SHLWAPI.dll"
#func global UrlHashW "UrlHashW" wptr, wptr, wptr
; UrlHashW pszUrl, varptr(pbHash), cbHash   ; 戻り値は stat
; pszUrl : LPCWSTR -> "wptr"
; pbHash : BYTE* out -> "wptr"
; cbHash : DWORD -> "wptr"
; ※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 UrlHashW "UrlHashW" wstr, var, int
; res = UrlHashW(pszUrl, pbHash, cbHash)
; pszUrl : LPCWSTR -> "wstr"
; pbHash : BYTE* out -> "var"
; cbHash : DWORD -> "int"
; ※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。

; HRESULT UrlHashW(LPCWSTR pszUrl, BYTE* pbHash, DWORD cbHash)
#uselib "SHLWAPI.dll"
#cfunc global UrlHashW "UrlHashW" wstr, var, int
; res = UrlHashW(pszUrl, pbHash, cbHash)
; pszUrl : LPCWSTR -> "wstr"
; pbHash : BYTE* out -> "var"
; cbHash : DWORD -> "int"
; ※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")
	procUrlHashW = shlwapi.NewProc("UrlHashW")
)

// pszUrl (LPCWSTR), pbHash (BYTE* out), cbHash (DWORD)
r1, _, err := procUrlHashW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszUrl))),
	uintptr(pbHash),
	uintptr(cbHash),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function UrlHashW(
  pszUrl: PWideChar;   // LPCWSTR
  pbHash: Pointer;   // BYTE* out
  cbHash: DWORD   // DWORD
): Integer; stdcall;
  external 'SHLWAPI.dll' name 'UrlHashW';

result := DllCall("SHLWAPI\UrlHashW"
    , "WStr", pszUrl   ; LPCWSTR
    , "Ptr", pbHash   ; BYTE* out
    , "UInt", cbHash   ; DWORD
    , "Int")   ; return: HRESULT

●UrlHashW(pszUrl, pbHash, cbHash) = DLL("SHLWAPI.dll", "int UrlHashW(char*, void*, dword)")
# 呼び出し: UrlHashW(pszUrl, pbHash, cbHash)
# pszUrl : LPCWSTR -> "char*"
# pbHash : BYTE* out -> "void*"
# cbHash : DWORD -> "dword"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。