Get Window Handles

The Get Window Handles command of the WebDriver API returns a list of all WebWindows. Each tab or window, depending on whether you are using a tabbed browser, is associated by a window handle that is used as a reference when switching to the window.

In order to determine whether or not a particular interaction with the browser opens a new window, one can obtain the set of window handles before the interaction is performed and compare it with the set after the action is performed.

session id

Identifier of the session.

Invalid session ID

Session does not exist.

C#:

using System.Collections.ObjectModel;
using OpenQA.Selenium.Firefox;

namespace MDNWebDriverExamples
{
    class Example
    {
        public static void Main(string[] args)
        {
            FirefoxDriver session = new FirefoxDriver();

            session.ExecuteScript("window.open()");

            ReadOnlyCollection<string> currentWindowHandles = session.WindowHandles;
        }
    }
}

• Switch To Window command
• Get Window Handle command
• Close Window command