From: Phlip <phlip_cpp@...>
Date: 2004-08-18T00:10:58+09:00
Subject: Re: Fake Tk events

Mike Hall wrote:

> Two Tcl-ish thoughts come to mind:
> - some Tk widgets have an 'invoke' method (not text, I guess)

Neither TkCanvas nor TkcText have them.

> - use the 'event' command to create your own virtual events
>    that can trigger the binding

They only work if the window displays. I think.

If I relent and let the window display, a little bit, I get this:

 require 'tk'
 top = TkRoot.new()
 canvas = TkCanvas.new(top) {width(400);height(300) }
 canvas.grid()
 tx = TkcText.new(canvas, 100, 200) { text 'hello world' }

 tx.bind('Button-1') { |e|
  puts 'event generated'
  p e.x
  p e.y
  }

tx.after_idle {
 puts 'generating event'
 tx.event_generate('Button-1')
 }
Tk.mainloop()

Its major problem is it does not work. The event_generate does not trigger
an event.

So, what's the most accurate way to trigger a bound callback?

-- 
  Phlip
  http://industrialxp.org/community/bin/view/Main/TestFirstUserInterfaces