932c6baca2
Notifying Present about events' states was done prior with the single function present_wnmd_event_notify just like in screen mode. But it is more intelligible if at least in window mode we make use of three different functions with names that directly indicate what their purpose is: * present_wnmd_event_notify only for queued events feedback. * present_wnmd_flip_notify for when a presentation occured (flip). * present_wnmd_idle_notify for when the Pixmap of the event can be reused. This is an API-breaking change in regards to window mode. DDX written against the previous version won't work anymore. It is assumed that there only exists the XWayland DDX at the moment using the window mode such that this is not an issue for the overall ecosystem. Signed-off-by: Roman Gilg <subdiff@gmail.com>
X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
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