How can I ensure my game runs in full screen mode on Windows across different versions like Windows 10 and 11?

Ensuring Full Screen Mode for Windows Games Across Versions

Running games in full screen mode requires handling various settings across different Windows versions such as Windows 10 and Windows 11. Here are some steps and best practices to achieve this:

Graphics Settings in Unity

Resolution Settings: Set the default screen resolution in Unity’s Player Settings to match the native resolution of common displays. Enable the option ‘Fullscreen Mode’ and choose ‘FullScreen Window’ for a borderless experience on both Windows 10 and 11.
Aspect Ratio: Ensure your game’s aspect ratio is set to support a variety of screen resolutions. Use the ‘AspectRatio’ options in Unity to prevent distortion.

Platform-Specific Considerations

Windows 10 and UWP

UWP Development: For games being deployed via the Universal Windows Platform, use the ApplicationView API to request full screen mode, ensuring this setting is adaptable to various device types supported by Windows 10.
User Settings: Allow players to toggle between full screen and windowed modes via in-game settings or configuration files.

Compatibility with Windows 11

Screen Metrics API: Utilize the latest Windows API calls to fetch and adapt to the desktop environment’s current display settings. Windows 11 introduces enhanced support for dynamic display settings which should be leveraged for smooth transitions.
Testing on Platforms: Thoroughly test your game on both Windows 10 and 11 virtual machines or physical setups to catch potential incompatibility issues.

Code Snippet for Full Screen Mode

if (Screen.fullScreen == false) {
    Screen.fullScreenMode = FullScreenMode.FullScreenWindow;
    Screen.fullScreen = true;
}

Ensure you check and adjust the full screen settings at the start of your game to provide an optimal experience immediately.

Play and win now!

Optimization and Performance

Graphics API: Choose a cross-compatible graphics API like DirectX 12 to utilize the full potential of hardware acceleration on both Windows 10 and 11.
Rendering Path: Investigate and optimize your rendering path to prevent performance hitches when handling desktop scaling differences across these Operating Systems.

Implement these strategies to ensure your game runs smoothly and consistently in full screen mode across various Windows versions.