[Gtk-sharp-list] accelgroup.Connect problem

Matthew Pirocchi matthew.pirocchi at gmail.com
Sun Apr 11 16:56:59 EDT 2010

Hi Davide,

The "IntPtr" parameter refers to a C function pointer, not a C# method
group. It's generally just used internally, for interop with Gtk+.

Generally, setting up accelerators looks something like this:

// Initialize the AccelGroup
AccelGroup accelGroup = new AccelGroup ();
AddAccelGroup (accelGroup);


// Create the create the menu item you want to set up the accelerator for
MenuItem menuItem = new MenuItem ();
// Hook up the event handler to the Activated event
menuItem.Activated += HandleMenuItemActivated;


// Add the accelerator for the menu item
("activate", accelGroup,
 new AccelKey (Gdk.Key.Left,
Gdk.ModifierType.MetaMask, AccelFlags.Visible));

Hope this helps,
- Matthew

On Sun, Apr 11, 2010 at 2:57 PM, Davide Lasagna <lasagnadavide at gmail.com>wrote:

> Hi all,
> I'm new to mono although i've had some previous experience with pygtk. I
> have  a problem with an accelgroup. What i want to do is to bind Alt+left to
> a calback.
> Here is the code:
> AccelGroup accelgroup = new AccelGroup();
> this.AddAccelGroup(accelgroup);
>  accelgroup.Connect(Gdk.Key.Left, Gdk.ModifierType.MetaMask,
> AccelFlags.Visible, HandleGobackClicked );
> Compiling this gives:
> ./MainWindow.cs(62,36): error CS1502: The best overloaded method match for
> `Gtk.AccelGroup.Connect(uint, Gdk.ModifierType, Gtk.AccelFlags,
> System.IntPtr)' has some invalid arguments
> /usr/lib/cli/gtk-sharp-2.0/gtk-sharp.dll (Location of the symbol related to
> previous error)
> ./MainWindow.cs(62,36): error CS1503: Argument `#1' cannot convert
> `Gdk.Key' expression to type `uint'
> How can i solve it? The docs are not very complete on this, and i can't
> find tutorials or examples.
> Thanks for pointing me in the right direction.
> Davide
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