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How to Create a .NET Windows Forms Application that Runs Exclusively in the System Tray?
How to Create a .NET Windows Forms Application that Runs Exclusively in the System Tray?
Jan 14, 2025 pm 06:22 PM
Building a .NET Windows Forms App for the System Tray Only
This guide details how to develop a .NET Windows Forms application that resides exclusively in the system tray, eliminating the main application window.
1. Creating a Custom ApplicationContext:
Begin by modifying your Program.cs file. Instead of launching a standard form, instantiate a class derived from ApplicationContext. This class manages the system tray icon.
static class Program
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new MyTrayApp());
}
}
public class MyTrayApp : ApplicationContext
{
// ...
}
2. System Tray Icon Initialization:
Within the MyTrayApp constructor, create and configure a NotifyIcon object. This icon represents your application in the system tray. Define its icon, tooltip text, and context menu.
public MyTrayApp()
{
trayIcon = new NotifyIcon()
{
Icon = Properties.Resources.AppIcon, // Replace with your icon resource
ContextMenuStrip = new ContextMenuStrip(), // Use ContextMenuStrip for better UI
Text = "My Tray App",
Visible = true
};
// Add menu items to the ContextMenuStrip
ToolStripMenuItem exitItem = new ToolStripMenuItem("Exit");
exitItem.Click += Exit;
trayIcon.ContextMenuStrip.Items.Add(exitItem);
}
3. Implementing the Exit Handler:
Create an Exit method to handle the context menu's "Exit" option. This method hides the tray icon and gracefully terminates the application.
private void Exit(object sender, EventArgs e)
{
trayIcon.Visible = false;
Application.Exit();
}
Following these steps ensures your .NET Windows Forms application runs solely within the system tray, providing a minimal user interface consisting of an icon, tooltip, and context menu. Remember to replace Properties.Resources.AppIcon with the actual path to your application's icon resource.
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