GtkSharp/gtk/Widget.cs

69 lines
1.3 KiB
C#
Raw Normal View History

// GTK.Widget.cs - GTK Widget class implementation
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// (c) 2001 Mike Kestner
namespace GTK {
using System;
using System.Runtime.InteropServices;
public abstract class Widget : Object {
/// <summary>
/// Delete Event
/// </summary>
///
/// <remarks>
/// Occurs when the Widget is deleted by the window
/// manager.
/// </remarks>
private static readonly object DeleteEvent = new object ();
public event EventHandler Delete
{
add
{
if (Events[DeleteEvent] == null)
{
ConnectSignal ("delete-event", new SimpleCallback (EmitDeleteEvent));
}
Events.AddHandler (DeleteEvent, value);
}
remove
{
Events.RemoveHandler (DeleteEvent, value);
}
}
private void EmitDeleteEvent (IntPtr obj)
{
EventHandler eh = (EventHandler)(_events[DeleteEvent]);
if (eh != null)
{
EventArgs args = new EventArgs ();
eh(this, args);
}
}
/// <summary>
/// Show Method
/// </summary>
///
/// <remarks>
/// Makes the Widget visible on the display.
/// </remarks>
[DllImport("gtk-1.3")]
static extern void gtk_widget_show (IntPtr obj);
public void Show ()
{
gtk_widget_show (obj);
}
}
}