miext/rootless/README.txt

12 on top of another window server in a cooperative manner. This allows the
13 X11 windows and native windows of the underlying window server to
15 window of the X server is generally not drawn. Instead, each top-level
16 child of the root window is represented as a separate on-screen window by
17 the underlying window server. The layer is referred to as "generic"
18 because it abstracts away the details of the underlying window system and
23 layer to interact with the underlying window system.
28         In the context of a rootless X server the term window is used to
29 mean many fundamentally different things. For X11 a window is a DDX
31 screen. A top-level window is a direct child of the root window. To avoid
32 confusion, an on-screen native window of the underlying window system
34 mapped top-level X11 window with a frame. An X11 window may be said
39 If the underlying window system does not provide a backing buffer for
52 the entire window contents, not just the obscured portions. The price paid
59         The specifics of the underlying window system are provided to the
88         the underlying window server. Most operations will be buffered until
91       o ROOTLESS_RESIZE_GRAVITY: If the underlying window system supports it,
116 the API of the underlying window system. This underlying API may not
120 primitives and some window functions. Typically calling through to the
121 underlying window systems API will not speed up these operations for
130 of the extra bits are undefined by the X11 protocol. Some window systems
137 channel in an attempt to optimize drawing. In addition, the window
147 independence of the underlying window system. Torrey T. Lyons
210  *  gravity     Gravity for window contents (rl_gravity_enum). This is always
277  *              coordinates. This is clipped to the window's clip.
296  * Switch the window associated with a frame. (Optional)
297  *  When a framed window is reparented, the frame is resized and set to
301  *  pFrame      Frame whose window has switched
302  *  oldWin      Previous window wrapped by this frame