tcllib is a Tcl-only library of standard routines for Tcl (no compiling required). This project also houses the CVS modules for BWidgets, tclbench, mclistbox, tclapps, and tklib. All of these are deprecated in favor of the fossil repositories found at the sites listed below.
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Follow code development at the same sites.
I am not able to see the video of these tutorials. If I could it is really a good job