[R] tcltk: use of .Tcl.callback

Dear, How to properly use the function: .Tcl.callback( ) to trigger a single R function with different values? Below is my stupid solution ... The expected behavior is this but I would like to know how to do it right. Thanks in advanced cleber ##

[R] tcltk: use of .Tcl.callback

Dear, How to properly use the function: .Tcl.callback( ) to trigger a single R function with different values? Below is my stupid solution ... The expected behavior is this but I would like to know how to do it right. Thanks in advanced cleber ##