[Gtk-sharp-list] Userdata in signal handlers?

[Peter Johanson]

On Mon, Feb 19, 2007 at 11:38:34AM +0100, Jesper K. Pedersen wrote:
> I am making a small application where I have a range of "short-cut"
> buttons for opening a window with particular datasets.
> 
> 
> All my shortcut buttons are going to the same event handler but as my
> buttons are created with a label using markup language I cant seem to
> read the label value of it.
> 
> Is it possible to attach a piece of userdata to each button with a
> value that makes it easy to check which button was calling the event
> handler?
> 
> Any hints are greatly appreciated.

Probably the best way would be to create references to all your buttons
from glade, then use the first "object o" parameter cast as a button to
compare against them. Roughly:

class MyWindow
{
	public MyWindow ()
	{
		Glade.XML gxml = new Glade.XML (null, "gui.glade", "MyWindow", null);
		gxml.Autoconnect (this);
	}

	[Glade.Widget]
	private Button Button1;

	[Glade.Widget]
	private Button Button2;

	private void OnClicked (object o, EventArgs e)
	{
		Button b = o as Button;
		if (b == null) {
			return;
		}

		if (b == Button1) {
			// Do some button1 logic here
		} else if (b == Butto2) {
			// Do some button2 logic here
		}
	}
}

HTH,

-pete


-- 
Peter Johanson
<latexer at gentoo.org>