Classe « Variable » Python 3.11.3

Méthode tkinter.Variable.trace_add

Signature de la méthode trace_add

def trace_add(self, mode, callback) 

Description

help(Variable.trace_add)

Define a trace callback for the variable.

        Mode is one of "read", "write", "unset", or a list or tuple of
        such strings.
        Callback must be a function which is called when the variable is
        read, written or unset.

        Return the name of the callback.