HlinkNavigateString

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

HRESULT HlinkNavigateString(
    IUnknown* pUnk,   // optional
    LPCWSTR szTarget   // optional
);

<DllImport("urlmon.dll", ExactSpelling:=True)>
Public Shared Function HlinkNavigateString(
    pUnk As IntPtr,   ' IUnknown* optional
    <MarshalAs(UnmanagedType.LPWStr)> szTarget As String   ' LPCWSTR optional
) As Integer
End Function

' pUnk : IUnknown* optional
' szTarget : LPCWSTR optional
Declare PtrSafe Function HlinkNavigateString Lib "urlmon" ( _
    ByVal pUnk As LongPtr, _
    ByVal szTarget 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

HlinkNavigateString = ctypes.windll.urlmon.HlinkNavigateString
HlinkNavigateString.restype = ctypes.c_int
HlinkNavigateString.argtypes = [
    ctypes.c_void_p,  # pUnk : IUnknown* optional
    wintypes.LPCWSTR,  # szTarget : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('urlmon.dll')
HlinkNavigateString = Fiddle::Function.new(
  lib['HlinkNavigateString'],
  [
    Fiddle::TYPE_VOIDP,  # pUnk : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # szTarget : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "urlmon")]
extern "system" {
    fn HlinkNavigateString(
        pUnk: *mut core::ffi::c_void,  // IUnknown* optional
        szTarget: *const u16  // LPCWSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("urlmon.dll")]
public static extern int HlinkNavigateString(IntPtr pUnk, [MarshalAs(UnmanagedType.LPWStr)] string szTarget);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_HlinkNavigateString' -Namespace Win32 -PassThru
# $api::HlinkNavigateString(pUnk, szTarget)

#uselib "urlmon.dll"
#func global HlinkNavigateString "HlinkNavigateString" sptr, sptr
; HlinkNavigateString pUnk, szTarget   ; 戻り値は stat
; pUnk : IUnknown* optional -> "sptr"
; szTarget : LPCWSTR optional -> "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 "urlmon.dll"
#cfunc global HlinkNavigateString "HlinkNavigateString" sptr, wstr
; res = HlinkNavigateString(pUnk, szTarget)
; pUnk : IUnknown* optional -> "sptr"
; szTarget : LPCWSTR optional -> "wstr"

; HRESULT HlinkNavigateString(IUnknown* pUnk, LPCWSTR szTarget)
#uselib "urlmon.dll"
#cfunc global HlinkNavigateString "HlinkNavigateString" intptr, wstr
; res = HlinkNavigateString(pUnk, szTarget)
; pUnk : IUnknown* optional -> "intptr"
; szTarget : LPCWSTR optional -> "wstr"

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

var (
	urlmon = windows.NewLazySystemDLL("urlmon.dll")
	procHlinkNavigateString = urlmon.NewProc("HlinkNavigateString")
)

// pUnk (IUnknown* optional), szTarget (LPCWSTR optional)
r1, _, err := procHlinkNavigateString.Call(
	uintptr(pUnk),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szTarget))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HlinkNavigateString(
  pUnk: Pointer;   // IUnknown* optional
  szTarget: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'urlmon.dll' name 'HlinkNavigateString';

result := DllCall("urlmon\HlinkNavigateString"
    , "Ptr", pUnk   ; IUnknown* optional
    , "WStr", szTarget   ; LPCWSTR optional
    , "Int")   ; return: HRESULT

●HlinkNavigateString(pUnk, szTarget) = DLL("urlmon.dll", "int HlinkNavigateString(void*, char*)")
# 呼び出し: HlinkNavigateString(pUnk, szTarget)
# pUnk : IUnknown* optional -> "void*"
# szTarget : LPCWSTR optional -> "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)。