如何用自定义窗口替换WPF标准窗口？

Question

Right now I'm trying to create a voice recognition assistant (basically a JARVIS program) using c#. I started off writing the code in visual studio, and once the code was working, I moved over to expression blend to work on the UI.

I've successfully imported the images and animated them on a loop. At that point, when I ran the program, everything worked (animations and speech recognition included). My next step was then to try and "replace" the standard window with the images I had just imported by setting the standard window to transparent. Using the panes, I then set all the brushes to "no brush," and I set allowstransparency to "true." When I ran the program, the animations still worked but the program stopped running all of the voice recognition code.

Through the process of elimination, I've isolated the problem to the background brush and the allowstransparency function. If I either set the allowstransparency to true or mess with the background brush in any way, there's no more speech recognition.

I'm new to coding, so the only reason I can think of (and I don't even know if this is the reason) is that the speech recognition directory and functions are mapped to the window.

Is there any reason for why this is happening/is there a fix?

---

EDIT: Code added

    public MainWindow()
    {
        InitializeComponent();
        Loaded += MainWindow_Loaded;
    }

    private void MainWindow_Loaded(object sender, EventArgs e)
    {
        _recognizer.SetInputToDefaultAudioDevice();
        _recognizer.LoadGrammar(new Grammar(new GrammarBuilder(new Choices(File.ReadAllLines(@"C:\users\username\Documents\commands.txt")))));
        _recognizer.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(_recognizer_SpeechRecognized);
        _recognizer.RecognizeAsync(RecognizeMode.Multiple);
    }
    void _recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
    {
        int ranNum = rnd.Next(1, 10);
        string speech = e.Result.Text;
        switch (speech)
        {
            //INTERACTIONS
            case "hello":

...and so on

Answer 1

You need to complete four steps to make your window "Disappear":

1. Window.WindowStyle set equal to "None."
2. Window.Background set equal to "Transparent"
3. Window.BorderThickness set equal to "0"
4. Window.AllowsTransparency set equal to "True"

I see no reason for your speech recognition to be tied to the Window appearance, but you need to post some code; initialization code, and some example usage would probably be very useful in diagnosing the rest of the issue.

If you need the user to click on pieces of the user interface, you may need to set the Background to an "almost transparent" color, instead of a pure transparent brush. The reason for this is; when a background is purely "Transparent," it no longer detects click events - it treats the background as though it is no longer there.

You could try something like this:

Background="#01000000"

You will also probably want to keep a reference to the Task which (I assume) is returned by your RecognizeAsync method call; no telling when that might be inadvertently garbage-collected.