The X.Org Foundation: Documentation: Specification Documents

## 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]