XSplit Broadcaster's Desktop Capture feature allows you to capture different types of application window. Some of these windows/apps may require some tweaking of specific options to be properly captured.
Here are some scenarios and tips when using Desktop Capture.
Since Game Capture only works on OpenGL, Vulkan, and DirectX games, you will need to use Desktop Capture on your browser or web-based game client to add it as a source.
If the browser you are planning to capture is Google Chrome, you will need to disable Use Hardware Acceleration when Available under your browser's Settings > Advanced > System
Some games with web-based clients (such as slither.io) may require Exclusive Window Capture to be disabled to be properly captured.
You can capture other applications such as Adobe Photoshop or Microsoft Word by clicking Add Source > Desktop Capture > and selecting the application that you want to show under Apps.
If you are having issues properly capturing an application with Desktop Capture, right-click on the it and uncheck Exclusive Window Capture.