Start with the API documentation for a GtkButton: http://library.gnome.org/devel/gtk/stable/GtkButton.html Scroll down to "Signals" to see each signal you can connect a callback to for a GtkButton as well as the prototype for writing such a callback function. That is where "pressed" is coming from... the GtkButton. You can also look at the section called "Object Hierarchy" in the API to see which objects a GtkButton is derived from. You can also use the signals for any of those objects. If you were to click on GtkWidget, you'll find the "button-press-event" signal there with the description: " The ::button-press-event signal will be emitted when a button (typically from a mouse) is pressed." So as you can see, the "pressed" signal from GtkButton is what you want to connect to for a user clicking a button. If you want to capture the mouse clicking on a widget... any widget... you use "button-press-event". Whenever you find a signal that you don't know to which object it belongs, one easy way out is to search for it in Devhelp. - Micah Carrick Developer - http://www.micahcarrick.com GTK+ Forums - http://www.gtkforums.com Charles Packer wrote: > 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 > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list > > _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
