PS_Launcher/src/PSLauncher.App/Views/MainWindow.xaml.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;

namespace PSLauncher.App.Views;

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    /// <summary>
    /// Le bouton "..." ouvre son ContextMenu sur clic gauche (par défaut, ContextMenu ne s'ouvre qu'au clic droit).
    /// </summary>
    private void OnMoreMenuClick(object sender, RoutedEventArgs e)
    {
        if (sender is Button btn && btn.ContextMenu is { } menu)
        {
            menu.PlacementTarget = btn;
            menu.Placement = PlacementMode.Bottom;
            menu.IsOpen = true;
        }
    }
}