Tcl, the tool command language, is a simple generic scripting language designed to be embedded in applications and for easy extensibility. Extended Tcl, or TclX, is an extension to Tcl which adds commands for system access. SCO Visual Tcl makes use of Tcl and TclX, and extends them both with commands for generating graphical user interfaces (GUIs) and GUI components.
Tcl commands are described in manual page section (TCL), Extended Tcl commands in (TCLX), and SCO Visual Tcl commands in (VTCL). Complete command summaries for graphical and non-graphical commands are found in chpaters 4 and 5 of this guide.
You will find the information you need more quickly if you are familiar with:
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