Remove a tcl variable
OK=TCL_UnsetVar(varname [,interp])
: :ok boolean. %T if varname was deleted. :
This routine allows to unset a tcl variable.
More information about Tcl/Tk: http://www.tcl.tk/doc/
`TCL_SetVar`_("Scilab","OK")
`TCL_GetVar`_("Scilab")
TCL_UnsetVar("Scilab")
`TCL_ExistVar`_("Scilab")
`TCL_CreateSlave`_('InterpSlave');
`TCL_SetVar`_("Scilab","Good",'InterpSlave')
`TCL_GetVar`_("Scilab",'InterpSlave')
TCL_UnsetVar("Scilab",'InterpSlave')
`TCL_ExistVar`_("Scilab",'InterpSlave')
`TCL_DeleteInterp`_('InterpSlave')