How to capture Alt + Tab

Question

I want change ItemSource or something when pressing the Alt + Tab so how to do this. I have tried below the code but its not work in WPF:

void MainWindow_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Tab && (Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt)
    {
        MessageBox.Show("CTRL + TAB trapped");
    }    
}

Answer 1

You need to hook into the Windows API to get access to the keyboard and intercept these calls. Check out the guidance given here