[ruby-talk:7625] Re: Adding text to a canvas on the fly

>Have you looked at the Tk widget demos on RAA? It's been a while since I 
>looked at them, but I wouldn't be surprised if pieces of what you wanted 
>were already there.

Yes.  The problem is, of course, that apart from grep-ing for things
it's hard to find code that gives a clue to how to handle a specific
problem.

I was able to get something happening using the following code ...

	g  = "+#{x + 5}+#{y + 5}"
	tl = TkToplevel.new() { geometry g }       
                                           
	tl.overrideredirect(1)                     
                                           
	t1 = TkVariable.new('Hello')
	t2 = TkLabel.new(tl, 'textvariable' => t1) 
	t2.pack

where the variable names were not chosen for documentation purposes,
because I'm just playing, trying to get something going :-).

This works, but because tl is a separate window, it's hard to control
it to keep it in the right place relative to the canvas.  The problem
is I can't work out how to get the TkLabel into a specific position
within the canvas without putting it in a separate frame.

The reason I ended up using a TkToplevel was that I obviously don't
want the frame border and I found that trick about overrideredirect
somewhere, and it doesn't apply to frames :-(.

If someone can tell me how to use just a frame, which I then should be
able to bind to the canvas, but get rid of the decorations, that would
be great.

Sorry, I realise I'm trying to do things after a week that maybe
people normally would know how to do if they'd taken some time to
learn Tk.  The problem is I have an actual application that I want
working in about another 10 days!