Re: [gnomemm] Canvas/Item event handling

[ERDI Gergo <cactus cactus rulez org>]

On Wed, 25 Sep 2002, gao chaowei wrote:

> I am use gnome-- to do a project. I want the Canvas to capture the button 
> click event. Because the Canvas is in a scrolled window and the canvas can 
> zoon in or zoom out. In button_release_event_impl method of my Canvas, the 
> X and Y coordinates is relative to the main window. But i want the value 
> relative to the canvas. Is there any way ?

Yes, there are various coordinate system conversion methods in
Gnome::Canvas. The one you want to use here is
Gnome::Canvas::window_to_world

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