VARIABLE(9) VARIABLE(9) NAME variable - interrogate a radiobutton variable SYNOPSIS variable var DESCRIPTION Variable returns the value of a Tk radiobutton variable. An error diagnostic will be returned if the variable is of the wrong type (if for instance it is the name of a named chan- nel). The special variable lasterror gives the text of the last Tk error encountered. It resets when queried. SEE ALSO radiobutton(9)