CODEWITHSUNDEEP
.netwpfwindow
rakete
rakete

Reputation: 3041

Completely hide WPF window on startup?

I want that my window is completely hidden on the startup. No window, no entry in the taskbar. The user doesn't see, the application is started.

How can I realize that?

Thank you!

Upvotes: 41

Views: 48346

Answers (5)

Alex Soloh
Alex Soloh

Reputation: 71

If a window should be created but not displayed, just don't show it. Set '-s' command line argument to run in silent mode.

    protected override void OnStartup(StartupEventArgs e)
    {
        // Get the command line arguments
        string[] args = Environment.GetCommandLineArgs();
        var silentMode = args.Count() > 1 && args[1].ToLower().Equals("-s");

        // If silent mode is enabled, the window is not displayed
        var mainWindow = new MainWindow();
        if (!silentMode) mainWindow.Show();
    }

Upvotes: 0

Jerry Jian
Jerry Jian

Reputation: 26

My requirement: Start a process to show a window, and embed it into a wpf control. The window must be loaded normally, trigger initialized/loaded events, then run as child window in control.

My solution: Set the window width and height to 1, after loaded, resize it to normal size. The window will be shown in short time, almost 1 second. User will not notice it.

Upvotes: 0

Leonard Brünings
Leonard Brünings

Reputation: 13222

Simply don't create a window, just delete the StartupUri from App.xaml.

It might be helpful to set the Application to ShutDownMode="OnExplicitShutdown" this will prevent that your application shuts down if your last window was closed.

Upvotes: 21

LukeN
LukeN

Reputation: 1738

An alternative to H.B.'s method is just to set the Visibility to hidden and set ShowInTaskbar to false. This still creates the window and lets it do its thing.

<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" ShowInTaskbar="False" Visibility="Hidden">
    <Grid>

    </Grid>
</Window>

Upvotes: 50

brunnerh
brunnerh

Reputation: 184441

Don't show the window. By default there is a StartupUri defined in the App.xaml, remove it and override the OnStartup method in the code-behind to create a window, just Show and Hide it as you wish.

Upvotes: 45

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