Tkinter Context Menus select their first item even if you don't want them to

[Phlip]

Proclaimed Phlip from the mountaintops:

> Hyp Ton:
> 
> Try this code... You can right-click on the canvas to make the menu
> pop up.
> 
> http://mail.python.org/pipermail/python-list/1999-November/015485.html
> 
> However, if you make the first menu item call a command that calls
> 'sys.exit(0)', merely summoning the menu with <Button-3> croaks the
> program.
> 
> Real Context Menus display and then await a further input. This means you
> can back out of an action instead of comiting it. Platform is LinuxPpc.
> 
> My current work-around is to make the first item do nothing, but I'd
> obviously prefer a real fix.

Thanks to someone for the request that I provide the offending source, but 
I'm on another project right now.

I suspect the issue boils down to with my code the geometry math puts the 
menu such that the mouse is over the first item when the tip appears. Then 
mouse-up selects the item.

The fix is to get the geometry right, putting the menu a pixel southwest of 
the mouse, and maybe to trigger the context menu on mouse-up instead of 
mouse-down.

-- 
  Phlip                          phlip_cpp at my-deja.com
============== http://phlip.webjump.com ==============
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