Tcl and the Tk toolkit
Real time groupware as a distributed system: concurrency control and its effect on the interface
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Building real-time groupware with GroupKit, a groupware toolkit
ACM Transactions on Computer-Human Interaction (TOCHI)
Extending traces with OAT: an object attribute trace package for Tcl/Tk
TCLTK'97 Proceedings of the 5th conference on Annual Tcl/Tk Workshop 1997 - Volume 5
Managing complexity in TeamRooms, a Tcl-based internet groupware application
TCLTK'96 Proceedings of the 4th conference on USENIX Tcl/Tk Workshop, 1996 - Volume 4
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This paper describes an approach to designing and building Tcl extensions that can be flexibly and dynamically changed using either Tcl or C. In particular, extensions having an object-based interface are considered. This extension approach seeks to avoid the "chasm" found in migrating code from Tcl to C as it matures by freely mixing Tcl and C to create an object's subcommands. The approach differs from traditional Tcl object frameworks in that it retains familiar mechanisms used to create new toplevel Tcl commands, and emphasizes extensions holding much of their data at the C level. A secondary goal is to illustrate how extension authors can encourage rich customization, by exposing object internals to change. To illustrate the technique, a simple data structure is extended to support sharing between multiple Tcl processes.