Fenstermodus

Fenstermodus describes a display method in graphical user interfaces where an application renders its content inside a resizable window on the desktop, rather than occupying the entire screen. It contrasts with Vollbildmodus (fullscreen mode), in which the application takes over the display and typically interacts less with other windows or the desktop.

In Fenstermodus, windows usually have borders and a title bar with controls such as minimize, maximize, and close. The user can move and resize the window, overlap other windows, and switch between applications using the taskbar, dock, or keyboard shortcuts. Most modern operating systems support fenstermodus for applications, including Windows, macOS, and Linux. In gaming and professional software, explicit options for Fenstermodus may be available, as well as borderless windowed modes that emulate fullscreen while remaining a window.

Practically, fenstermodus enables multitasking, easier task switching, screenshotting, and drag-and-drop between applications. However, it can introduce slightly higher input latency or lower rendering performance on some setups due to the window compositor, and some games may not support it as smoothly as fullscreen.

Technically, Fenstermodus relies on the system's window manager or compositor to render the window alongside other content. On Linux, differences exist between X11 and Wayland; on Windows, fullscreen exclusive modes are a separate option. The term is commonly used in German-language contexts to describe windowed operation of applications.