Hi, I just started to learn tcl and TclOO, so i need some help with my class.
I want to run method Print for my object, when i press button, how can i do it?

Here is example

======
package require Tk
oo::class create test {
        constructor {} {
                my gui
        }

        method gui {} {
                pack [frame .main -bg green] -fill both -padx 2 -pady 2 -expand yes -side left -anchor ne
                pack [button .b -text "test" -relief flat -command [??????????]] -side left -padx 2 -pady 2
        }
        method Print {} {
                puts "ola"
        }
}

set c [test new]
======




I can do it like this, but in this case method print is public:


======
package require Tk
oo::class create test {
        constructor {} {
                my gui
        }

        method gui {} {
                pack [frame .main -bg green] -fill both -padx 2 -pady 2 -expand yes -side left -anchor ne
                pack [button .b -text "test" -relief flat -command "[self] print"] -side left -padx 2 -pady 2
        }
        method print {} {
                puts "ola"
        }
}

set c [test new]
======



Thank you