[Gtk-sharp-list] Returning Gdk.Events

[Miguel de Icaza]

Hello!

> My suggested solution is to use something like:
> 
>  		public static Gdk.Event CurrrentEvent {
>  			IntPtr handle = gtk_get_current_event ();
> 			GdkEventType type;
> 
> 			type = (GdkEventType)Marshal.Read32 (handle);
> 			switch (type) {
> 			case GdkEventType.Expose:
> 				return (Gdk.Event)Marshal.PtrToStructure (handle, typeof (Gdk.EventExpose));
> 			case GdkEventType.ButtonPress:
> 				return (Gdk.Event)Marshal.PtrToStructure (handle, typeof (Gdk.ButtonPress));
> 			...
> 			}
>  		}
> 
> Modulo some small details, it should work nicely.

There is only one problem here: Gdk.Event is a class, and the various
Gdk.EventXXXX are structures that do not share a common base class.

I could change the signature to return an `object' instead of a
Gdk.Event, and it would be up to the user to do an `is' compare on the
result.

Miguel