using System; using System.Text; using System.Linq; using System.Drawing; using System.Diagnostics; using System.Windows.Forms; using System.Threading; using System.Threading.Tasks; using System.Collections.Generic; using Tango.PMR.Stubs; using Tango.Stubs; public void OnExecute(StubManager stubManager) { DialogResult d; d=MessageBox.Show("Is it what you need?","Example for Mati", MessageBoxButtons.YesNo, MessageBoxIcon.Information); if(d==DialogResult.Yes) { stubManager.WriteLine("Yes"); } else { stubManager.WriteLine("No"); } /* see https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.messagebox.show?view=netcore-3.1 */ }