[Mono-list] Gdk.Keyval.Name - problem (and running GNOME-apps problem as well)

[Fredrick Nilsson]

On Thu, 2004-01-01 at 18:59, Todd Berman wrote:
> I believe a Console.WriteLine (args.Event.Key); will give you exactly
> what you are looking for.
> 

Yeah, that worked fine, thanks!

Now, I just wonder why it didn't work in my example :)

.b

> --Todd
> 
> On Thu, 2004-01-01 at 12:24, Fredrick Nilsson wrote:
> > Hey!
> > 
> > I'm trying to retrieve the name for a key that is pressed. I'm using a
> > method that looks something like this (a rough example):
> > 
> > 	void ButtonsPressed (object o, GtkSharp.KeyPressEventArgs args) 
> > 	{
> > 		Gdk.EventKey key = args.Event;
> > 		string keyname = "bah";
> > 		keyname = Gdk.Keyval.Name ((uint) key.keyval); 
> > 		Console.WriteLine ("keyname: " + keyname);
> > 	}
> > 
> > Unfortunately, it fails with the following error message:
> > 
> > Unhandled Exception: System.Reflection.TargetInvocationException:
> > Exception has been thrown by the target of an invocation. --->
> > System.NullReferenceException: A null value was found where an object
> > instance was required
> > in (unmanaged) (wrapper managed-to-native) GLibSharp.Marshaller:g_free
> > (intptr)
> > in <0x00004> (wrapper managed-to-native) GLibSharp.Marshaller:g_free
> > (intptr)
> > in <0x00025> GLibSharp.Marshaller:PtrToStringGFree (intptr)
> > in <0x0002a> Gdk.Keyval:Name (uint)
> > in <0x00047> .MainWindow:ButtonsPressed
> > (object,GtkSharp.KeyPressEventArgs)
> > in (unmanaged) /usr/lib/libmono.so.0 [0x40054ae1]
> > in (unmanaged) /usr/lib/libmono.so.0(mono_runtime_invoke+0x35)
> > [0x400a6e12]
> > in (unmanaged) /usr/lib/libmono.so.0(mono_runtime_invoke_array+0x21b)
> > [0x400a7d93]
> > in (unmanaged) /usr/lib/libmono.so.0 [0x400ae2c1]
> > in <0x0009c> System.Reflection.MonoMethod:Invoke
> > (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
> > --- End of inner exception stack trace ---
> >  
> > in <0x000e4> System.Reflection.MonoMethod:Invoke
> > (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
> > in <0x00026> System.Reflection.MethodBase:Invoke (object,object[])
> > in <0x00105> System.Delegate:DynamicInvokeImpl (object[])
> > in <0x00048> System.MulticastDelegate:DynamicInvokeImpl (object[])
> > in <0x00011> System.Delegate:DynamicInvoke (object[])
> > in <0x001e0>
> > GtkSharp.boolObjectEventKeySignal:boolObjectEventKeyCallback
> > (intptr,Gdk.EventKey&,int)
> > in <0x00166> (wrapper native-to-managed)
> > GtkSharp.boolObjectEventKeySignal:boolObjectEventKeyCallback
> > (intptr,Gdk.EventKey&,int)
> > in (unmanaged) (wrapper managed-to-native) Gtk.Application:gtk_main ()
> > in <0x00004> (wrapper managed-to-native) Gtk.Application:gtk_main ()
> > in <0x00007> Gtk.Application:Run ()
> > in <0x00007> Gnome.Program:Run ()
> > in <0x000b7> .Hello:Main (string[])
> > 
> > And I just can't see the error I'm making here. 
> > 
> > The other problem I have, Is that when I'm making a GNOME application, I
> > always get these warnings:
> > 
> > (Command Key Edit:19114): GConf-CRITICAL **: file gconf-client.c: line
> > 546 (gconf_client_add_dir): assertion `gconf_valid_key (dirname, NULL)'
> > failed
> >  
> > ** (Command Key Edit:19114): WARNING **: byref boolean marshalling not
> > inplemented
> >  
> > ** (Command Key Edit:19114): WARNING **: byref boolean marshalling not
> > inplemented
> > 
> > This even happens when I implement a simple Hello World-application (for
> > instance:
> > http://go-mono.com/tutorial/gnome/bindings/gnome/hello_world.html). If I
> > implement a GNOME application that uses Gnome.Program.Quit, It crashes
> > and i receive the error: ** ERROR **: Must shutdown ORB from main thread
> > aborting...
> > 
> > Anyone that has some input on the problems i experience?
> > 
> > BR
> > .f
> > 
> > _______________________________________________
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> > http://lists.ximian.com/mailman/listinfo/mono-list
> 
>