KeyPressEvent in Gtk#

abhijangda · **Joined:** Sun Apr 03, 2011 11:12 am **Posts:** 63

Hello everyone, I am using Gtk# in C#. But I am facing a problem. I have a Gtk.TextBox. Now I am connecting KeyPressEvent of Gtk.TextBox, using the following code.
TextBox is txtinput

Code:

this.txtinput.KeyPressEvent += new KeyPressEventHandler(this.txtinput_key_press_event);

and event handler function is

Code:

[GLib.ConnectBefore]void txtinput_key_press_event(object sender, KeyPressEventArgs args)
{
}

Now, I want to block certain keys. In GTK+ in C, this keypressevent handler function has return type of gboolean. So, it was easy to block certain keys. But, how this can be achieved in Gtk# in C#. Please Answer!!

BadOmen · **Joined:** Sat Feb 04, 2012 12:41 pm **Posts:** 10

Hi,
maybe this can help http://developer.gnome.org/gtk3/3.2/gtk3-Bindings.html It is gtk3.2 and uses CSS. I'm not a c/c# programmer and i don't really get what you are doing :)

Quat from link:

Quote:

GtkBindingSet provides a mechanism for configuring GTK+ key bindings through CSS files. This eases key binding adjustments for application developers as well as users and provides GTK+ users or administrators with high key binding configurability which requires no application or toolkit side changes.

I just read about it and remembered your post. :)

Hope it helps, if not, sorry! :)

errol · **Posted:** Thu Mar 01, 2012 5:52 pm

Hi,

C# does not bind to GTK v3 as of yet. In is only up to GTK v2.12, so is not particularly up to date.

I do not know C# but looking at the documentation KeyPressEventHandler is derived from GLib.SignalArgs. This has a property called RetVal which I presume is what the original poster is after.

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KeyPressEvent in Gtk#

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