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wpf Hide Window from Alt+Tab

Riz answered on June 30, 2022 Popularity 3/10 Helpfulness 7/10

answer wpf Hide Window from Alt+Tab

wpf Hide Window from Alt+Tab

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using System;
using System.Windows;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Windows.Interop;

namespace DesktopInfo
{
    public partial class MainWindow : Window
    {

        [DllImport("user32.dll", SetLastError = true)]
        static extern int GetWindowLong(IntPtr hWnd, int nIndex);
        [DllImport("user32.dll")]
        static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
        private const int GWL_EX_STYLE = -20;
        private const int WS_EX_APPWINDOW = 0x00040000, WS_EX_TOOLWINDOW = 0x00000080;

        public MainWindow() => InitializeComponent();
        
        //Form loaded event handler
        void FormLoaded(object sender, RoutedEventArgs args)
        {
            //Variable to hold the handle for the form
            var helper = new WindowInteropHelper(this).Handle;
            //Performing some magic to hide the form from Alt+Tab
            SetWindowLong(helper, GWL_EX_STYLE, (GetWindowLong(helper, GWL_EX_STYLE) | WS_EX_TOOLWINDOW) & ~WS_EX_APPWINDOW);
            
        }
    }
}

Popularity 3/10 Helpfulness 7/10 Language whatever

Source: stackoverflow.com

Tags: hide whatever window wpf

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