A complete programmer's reference for X library functions, which is the lowest level of programming interface to X. Reference pages for each Xlib function A permuted index to the Xlib functions reference pages for each event type Description of macros A listing of the standard color name database Alphabetical index and description of structures Alphabetical index and description of defined symbols A list of keysyms and their meanings, including sample characters A list and illustration of the standard cursor font A list of standard fonts with illustration of each font A function group index, for finding the right routine for a particular task Single-page reference aids for the GC and window attributes This reference manual provides reference pages for each Xlib function, a permuted index to the Xlib functions, reference pages for each event type, description of macros, a listing of the standard color database, an alphabetic index and description of structures and defined symbols, a list of keysyms and their meanings, a list and illustration of the standard cursor font, an illustrated list of the standard fonts, a function group index, for finding the right routine for a particular task, and single-page reference aids for the GC and window attributes.