public void HelloWorldTest() { IProcess process = Driver.Applications.Run("notepad.exe"); // Get the top-level window of Notepad. // You can get object identification code from the TestLeft UI Spy panel: // From the main menu, select View -> TestLeft UI Spy. ITopLevelWindow window = process.Find <ITopLevelWindow>(new WindowPattern() { WndClass = "Notepad" }); window.Keys("Hello world!!"); // Simulate text input }