X.Org Documentation: Specification and Related Documents

The formatting of some of the HTML versions of these documents may have some problems. In such cases refer to the PDF versions.

Core and Extension Protocols

• Core X Protocol [PDF]
• Core X Protocol Library API [PDF]
• MIT-SHM (shared memory) Extension [PDF]
• XC-MISC Extension [PDF]
• BIGREQ (Big Requests) Extension [PDF]
• Shape (non-rectangular window) Extension Protocol [PDF]
• Shape (non-rectangular window) Extension Library API [PDF]
• XC-APPGROUP (Application Group) Extension [PDF]
• Security Extension [PDF]
• TOG CUP (Colormap Utilization Policy) Extension [PDF]
• DPMS (Display Power Management Signaling) extension protocol [PDF]
• DPMS (Display Power Management Signaling) Extension Client Library API [PDF]
• EVI (Extended Visual Information) Extension [PDF]
• Xi (X Input) Extension Protocol [PDF]
• Xi (X Input) Extension Library API [PDF]
• Xi (X Input) Porting Information [PDF]
• Multi-buffer Extension (obsolete) [PDF]
• Double Buffer Extension Protocol [PDF]
• Double Buffer Extension Library API [PDF]
• Record Extension Protocol [PDF]
• Record Extension Library API [PDF]
• XTEST Extension Protocol [PDF]
• XTEST Extension Library API [PDF]
• Synchronization Extension Protocol [PDF]
• Synchronization Extension Library API [PDF]
• XPrint Extension Protocol [PDF]
• XPrint Extension Library API [PDF]
• XKEYBOARD Extension Protocol [PDF]
• XKEYBOARD Extension Library API [PDF]

Other Protocols and Interfaces

• X Transport Interface [PDF]
• XDMCP (X Display Manager Control Protocol) [PDF]
• Font Server Protocol [PDF]
• XIM (X Input Method) Protocol [PDF]
• XIM Transport [PDF]
• ICE (Inter-Client Exchange) Protocol [PDF]
• ICE (Inter-Client Exchange) Library API [PDF]
• ICCCM (Inter-Client Communcations Conventions Manual) [PDF]
• SM (X Session Management) Protocol [PDF]
• SM (X Session Management) Library API [PDF]

Internationalization

• I18N Framework [PDF]

Client Libraries

• Athena Widgets (Xaw) [PDF]
• X Font Library (fontlib) [PDF]
• Xmu Library [PDF]
• X Toolkit Intrinsics (Xt) [PDF]

Formats and Encodings

• BDF (Bitmap Distribution Format) Font Format [PDF]
• CTEXT (Compound Text) Encoding [PDF]
• X Locale Database Definition [PDF]
• XLFD (X Logical Font Description) Conventions [PDF]
• The RX Document (describes the RX MIME type) [PDF]

Implementation and Design

• XServer DDX [PDF]
• Security Extension Server Design [PDF]
• Analysis of the X Protocol for Security Concerns [PDF]
• Font Server Design [PDF]

Miscellaneous

• rstart [PDF]
• Xterm control sequences [PDF]