g_signal_connect -- "button-press-event" vs "pressed"

["Charles Packer" <mailbox cpacker org>]

If I code a button widget like this (I'm using the version
of GTK that came with Fedora Core 5)...

	GtkWidget *B = gtk_button_new_with_label (Label);
	g_signal_connect (GTK_OBJECT (B), "button-press-event",
                G_CALLBACK (Happened), "HELLO");

and the callback is this...

	Happened (GtkWidget *W, gpointer Data) {
		g_print ("ButtonHappened...|%s|\n", (char *) Data);
	}

when Happened is executed, it doesn't print the data. That is, I get 
"ButtonHappened...||". But when I replace the parameter 
"button-press-event" in the call to g_signal_connect with "pressed", 
on execution the printout is as desired, "ButtonHappened...|HELLO|". 

Now, "button-press-event" is in lists of event types such as you 
find in the GTK 2.0 tutorial at 
http://www.gtk.org/tutorial/a2769.html

As for "pressed", I don't know where I got it. It must have 
come along with some example I found in a newsgroup or on the Web.
I haven't been able to find an event-type list anywhere that 
contains it, so I can't solve the mystery of why I get what I 
want when I use that parameter, but not with the "legitimate" 
parameter.

--     
Charles Packer
http://cpacker.org/whatnews
mailboxATcpacker.org