Change desktop screen resolution

The TestingBot Desktop VMs (Windows, macOS and Linux) all support changing the screen-resolution before a test starts.

We currently support the following screen resolutions:

Value Type

Default Value

string

"1280x1024"

Platform	Resolutions
Windows/Linux	800x600 1024x768 1152x864 1280x768 1280x800 1280x960 1280x1024 1400x1050 1600x1200 1680x1050 1920x1080 1920x1200 2560x1440
macOS	800x600 1024x768 1280x768 1280x800 1280x960 1280x1024 1366x768 1440x900 1600x900 1600x1200 1680x1050 1920x1080 1920x1200 2048x1536

caps = Selenium::WebDriver::Remote::Capabilities.new
caps["screen-resolution"] = "1280x1024"

DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("screen-resolution", "1280x1024");

$caps = array(
  "screen-resolution" => "1280x1024"
);

capabilities = {
  "screen-resolution" : "1280x1024"
}

const capabilities = {
  "screen-resolution" : "1280x1024"
}

// For Chrome browser
OpenQA.Selenium.Chrome.ChromeOptions chromeCapability = new OpenQA.Selenium.Chrome.ChromeOptions();
capability.AddAdditionalCapability("resolution", "1280x1024", true);

// For Edge browser
OpenQA.Selenium.Edge.EdgeOptions edgecapability = new OpenQA.Selenium.Edge.EdgeOptions();
capability.AddAdditionalCapability("resolution", "1280x1024");

// For IE browser
OpenQA.Selenium.IE.InternetExplorerOptions ieCapability = new OpenQA.Selenium.IE.InternetExplorerOptions();
capability.AddAdditionalCapability("resolution", "1280x1024", true);

// For Firefox browser
OpenQA.Selenium.Firefox.FirefoxOptions firefoxCapability = new OpenQA.Selenium.Firefox.FirefoxOptions();
capability.AddAdditionalCapability("resolution", "1280x1024", true);

// For Safari browser
OpenQA.Selenium.Safari.SafariOptions safariCapability = new OpenQA.Selenium.Safari.SafariOptions();
safariCapability.AddAdditionalCapability("resolution", "1280x1024");

// For Opera browser
OpenQA.Selenium.Opera.OperaOptions operaCapability = new OpenQA.Selenium.Opera.OperaOptions();
operaCapability.AddAdditionalCapability("resolution", "1280x1024");

The browser window is not maximized when starting a Selenium test. Changing the screen resolution does not maximize browser.
See how to maximize and resize the browser window.