ynkdir

# Caliculate Windows Limited Access Feature Token
# https://firefox-source-docs.mozilla.org/widget/windows/LimitedAccessFeature.html
# term:
#   Limited Access Feature (laf)
#   Package Family Name (pfn)

import winreg
from base64 import b64encode
from hashlib import sha256

ynkdir

# https://learn.microsoft.com/en-us/windows/ai/apis/phi-silica
# https://learn.microsoft.com/en-us/windows/ai/
# https://github.com/ynkdir/py-win32more/blob/main/docs/howto-create-packaged-application.md
#
# To use AI Api,
# 1. Unlock Limited Access Feature (fill the following variable).  See url above to request access token.
# 2. Make application (python.exe) packaged with package family name used to request access token.
#    (It seems to available for unpackaged application, but I can not get it work.)
#
# There is a problem in Phi Silica API access through LAF (resolved by KB5067036).

ynkdir

How to create packaged application

Some specific API (e.g. Windows AI API) requires package identity at runtime.

You need to make your application packaged.

See Generating MSIX package components

1. Download standalone python package

ynkdir

// There are multiple versions of msvcp140.dll.
// If C++ program is compiled with newer version, it will not work with older
// version of msvcp140.dll.
//
// You can check file version with PS> (Get-Item msvcp140.dll).VersionInfo
//
// https://learn.microsoft.com/en-us/cpp/porting/binary-compat-2015-2017?view=msvc-170
// ```
// C++ binary compatibility between Visual Studio versions
// ...

ynkdir

# Load and predict with ONNX Runtime and a very simple model
# https://onnxruntime.ai/docs/api/python/auto_examples/plot_load_and_predict.html
#
# Install
# https://learn.microsoft.com/en-us/windows/ai/new-windows-ml/get-started?tabs=python>
# pip install win32more
# pip install --pre --index-url https://aiinfra.pkgs.visualstudio.com/PublicPackages/_packaging/ORT-Nightly/pypi/simple/ --extra-index-url https://pypi.org/simple onnxruntime-winml

import asyncio

ynkdir

# How to get pointer of memoryview (and how to break python object)

from ctypes import *

PyBUF_FULL_RO = 0x0100 | 0x0010 | 0x0008 | 0x0004

class Py_buffer(Structure):
    _fields_ = [
        ("buf", c_void_p),
        ("obj", c_void_p),

ynkdir

# Example to use WebView2 with CoreWebView2Environment.CreateWithOptionsAsync().

import asyncio

from win32more.Microsoft.UI.Xaml import Window
from win32more.Microsoft.UI.Xaml.Controls import WebView2
from win32more.Microsoft.Web.WebView2.Core import CoreWebView2Environment, CoreWebView2EnvironmentOptions
from win32more.Windows.Foundation import Uri

from win32more.appsdk.xaml import XamlApplication

ynkdir

# How to show a PIL image in WinUI

import io

from PIL import Image
from win32more.Microsoft.UI.Xaml.Media.Imaging import BitmapImage, SoftwareBitmapSource
from win32more.Microsoft.Windows.Storage.Pickers import FileOpenPicker
from win32more.Windows.Graphics.Imaging import (
    BitmapAlphaMode,
    BitmapBufferAccessMode,

ynkdir

# WinUI3 example for accessing UI component in subthread.
# UI component cannot be accessed in subthread.
# Use asyncio or DispatcherQueue to execute command in mainthread.

import asyncio
import threading
import time

from win32more.Microsoft.UI.Dispatching import DispatcherQueue
from win32more.Microsoft.UI.Xaml.Media import SolidColorBrush

ynkdir

// https://doc.rust-lang.org/std/alloc/struct.System.html

use std::alloc::{GlobalAlloc, Layout, System};
use std::io::Write;

static HEX: [[u8; 1]; 16] = [
    [0x30],
    [0x31],
    [0x32],
    [0x33],