I am writing a Ruby GUI TK application where the top-most portion of the
screen is a line of static menu buttons. I would like the remaining
portion of the screen to be dynamic - as an example, one of the top
buttons is pressed, in response to that, another window appears in the
dynamic area where someone can press more buttons, someone presses on of
those, which then draws a data window, erasing the window which had the
buttons, then someone closes the data window which brings the user back
the window which was drawn in response to the button press from the
button in the top portion of the screen.
Any references to Ruby TK function names would be greatly appreciated.