Page:Xlib - C Language X Interface.pdf/28

 Both return a value indicating whether the screen supports backing stores. The value returned can be one of WhenMapped, NotUseful, or Always (see section 3.2.4).

Both return a Boolean value indicating whether the screen supports save unders. If True, the screen supports save unders. If False, the screen does not support save unders (see section 3.2.5).

Both return the display of the specified screen.

The XScreenNumberOfScreen function returns the screen index number of the specified screen.

Both return the event mask of the root window for the specified screen at connection setup time.