Change desktop screen resolution with Selenium

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

ChromeOptions options = new ChromeOptions();
options.setCapability("platformName", "WIN11");
options.setCapability("browserVersion", "latest");
options.setCapability("screen-resolution", "1920x1080");

HashMap<String, Object> tbOptions = new HashMap<>();
tbOptions.put("key", "API_KEY");
tbOptions.put("secret", "API_SECRET");
options.setCapability("tb:options", tbOptions);

from selenium.webdriver.chrome.options import Options as ChromeOptions

options = ChromeOptions()
options.set_capability('platformName', 'WIN11')
options.set_capability('browserVersion', 'latest')
options.set_capability('screen-resolution', '1920x1080')
options.set_capability('tb:options', {
    'key': 'API_KEY',
    'secret': 'API_SECRET'
})

const capabilities = {
  platformName: 'WIN11',
  browserName: 'chrome',
  browserVersion: 'latest',
  'screen-resolution': '1920x1080',
  'tb:options': {
    key: 'API_KEY',
    secret: 'API_SECRET'
  }
};

options = Selenium::WebDriver::Chrome::Options.new
options.add_option('platformName', 'WIN11')
options.add_option('browserVersion', 'latest')
options.add_option('screen-resolution', '1920x1080')
options.add_option('tb:options', {
  'key' => 'API_KEY',
  'secret' => 'API_SECRET'
})

$capabilities = [
    'platformName' => 'WIN11',
    'browserName' => 'chrome',
    'browserVersion' => 'latest',
    'screen-resolution' => '1920x1080',
    'tb:options' => [
        'key' => 'API_KEY',
        'secret' => 'API_SECRET'
    ]
];

ChromeOptions options = new ChromeOptions();
options.PlatformName = "WIN11";
options.BrowserVersion = "latest";
options.AddAdditionalOption("screen-resolution", "1920x1080");

var tbOptions = new Dictionary<string, object>
{
    ["key"] = "API_KEY",
    ["secret"] = "API_SECRET"
};
options.AddAdditionalOption("tb:options", tbOptions);

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