Configuring the Maximum Resolution of Guests When Using the Graphical Frontend

When guest systems with the Guest Additions installed are started using the graphical frontend, the normal application, they will not be allowed to use screen resolutions greater than the host's screen size unless the user manually resizes them by dragging the window, switching to full screen or seamless mode or sending a video mode hint using VBoxManage. This behavior is what most users will want, but if you have different needs, you can change it by issuing one of the following commands from the command line: