ShellAboutW

// SHELL32.dll  (Unicode / -W)
#include <windows.h>

INT ShellAboutW(
    HWND hWnd,   // optional
    LPCWSTR szApp,
    LPCWSTR szOtherStuff,   // optional
    HICON hIcon   // optional
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ShellAboutW(
    hWnd As IntPtr,   ' HWND optional
    <MarshalAs(UnmanagedType.LPWStr)> szApp As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> szOtherStuff As String,   ' LPCWSTR optional
    hIcon As IntPtr   ' HICON optional
) As Integer
End Function

' hWnd : HWND optional
' szApp : LPCWSTR
' szOtherStuff : LPCWSTR optional
' hIcon : HICON optional
Declare PtrSafe Function ShellAboutW Lib "shell32" ( _
    ByVal hWnd As LongPtr, _
    ByVal szApp As LongPtr, _
    ByVal szOtherStuff As LongPtr, _
    ByVal hIcon As LongPtr) 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

ShellAboutW = ctypes.windll.shell32.ShellAboutW
ShellAboutW.restype = ctypes.c_int
ShellAboutW.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND optional
    wintypes.LPCWSTR,  # szApp : LPCWSTR
    wintypes.LPCWSTR,  # szOtherStuff : LPCWSTR optional
    wintypes.HANDLE,  # hIcon : HICON optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
ShellAboutW = Fiddle::Function.new(
  lib['ShellAboutW'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND optional
    Fiddle::TYPE_VOIDP,  # szApp : LPCWSTR
    Fiddle::TYPE_VOIDP,  # szOtherStuff : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # hIcon : HICON optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "shell32")]
extern "system" {
    fn ShellAboutW(
        hWnd: *mut core::ffi::c_void,  // HWND optional
        szApp: *const u16,  // LPCWSTR
        szOtherStuff: *const u16,  // LPCWSTR optional
        hIcon: *mut core::ffi::c_void  // HICON optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll", CharSet = CharSet.Unicode)]
public static extern int ShellAboutW(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)] string szApp, [MarshalAs(UnmanagedType.LPWStr)] string szOtherStuff, IntPtr hIcon);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_ShellAboutW' -Namespace Win32 -PassThru
# $api::ShellAboutW(hWnd, szApp, szOtherStuff, hIcon)

#uselib "SHELL32.dll"
#func global ShellAboutW "ShellAboutW" wptr, wptr, wptr, wptr
; ShellAboutW hWnd, szApp, szOtherStuff, hIcon   ; 戻り値は stat
; hWnd : HWND optional -> "wptr"
; szApp : LPCWSTR -> "wptr"
; szOtherStuff : LPCWSTR optional -> "wptr"
; hIcon : HICON optional -> "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 "SHELL32.dll"
#cfunc global ShellAboutW "ShellAboutW" sptr, wstr, wstr, sptr
; res = ShellAboutW(hWnd, szApp, szOtherStuff, hIcon)
; hWnd : HWND optional -> "sptr"
; szApp : LPCWSTR -> "wstr"
; szOtherStuff : LPCWSTR optional -> "wstr"
; hIcon : HICON optional -> "sptr"

; INT ShellAboutW(HWND hWnd, LPCWSTR szApp, LPCWSTR szOtherStuff, HICON hIcon)
#uselib "SHELL32.dll"
#cfunc global ShellAboutW "ShellAboutW" intptr, wstr, wstr, intptr
; res = ShellAboutW(hWnd, szApp, szOtherStuff, hIcon)
; hWnd : HWND optional -> "intptr"
; szApp : LPCWSTR -> "wstr"
; szOtherStuff : LPCWSTR optional -> "wstr"
; hIcon : HICON optional -> "intptr"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procShellAboutW = shell32.NewProc("ShellAboutW")
)

// hWnd (HWND optional), szApp (LPCWSTR), szOtherStuff (LPCWSTR optional), hIcon (HICON optional)
r1, _, err := procShellAboutW.Call(
	uintptr(hWnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szApp))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szOtherStuff))),
	uintptr(hIcon),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ShellAboutW(
  hWnd: THandle;   // HWND optional
  szApp: PWideChar;   // LPCWSTR
  szOtherStuff: PWideChar;   // LPCWSTR optional
  hIcon: THandle   // HICON optional
): Integer; stdcall;
  external 'SHELL32.dll' name 'ShellAboutW';

result := DllCall("SHELL32\ShellAboutW"
    , "Ptr", hWnd   ; HWND optional
    , "WStr", szApp   ; LPCWSTR
    , "WStr", szOtherStuff   ; LPCWSTR optional
    , "Ptr", hIcon   ; HICON optional
    , "Int")   ; return: INT

●ShellAboutW(hWnd, szApp, szOtherStuff, hIcon) = DLL("SHELL32.dll", "int ShellAboutW(void*, char*, char*, void*)")
# 呼び出し: ShellAboutW(hWnd, szApp, szOtherStuff, hIcon)
# hWnd : HWND optional -> "void*"
# szApp : LPCWSTR -> "char*"
# szOtherStuff : LPCWSTR optional -> "char*"
# hIcon : HICON optional -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。