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84 lines
2.5 KiB
C#
84 lines
2.5 KiB
C#
// helloworld.cs - Gtk# Tutorial example
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//
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// Author: Johannes Roith <johannes@jroith.de>
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//
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// (c) 2002 Johannes Roith
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namespace GtkSharpTutorial {
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using Gtk;
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using GtkSharp;
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using System;
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using System.Drawing;
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public class helloworld {
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/* This is a callback function. The data arguments are ignored
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* in this example. More on callbacks below. */
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static void hello (object obj, EventArgs args)
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{
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Console.WriteLine("Hello World");
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Application.Quit ();
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}
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static void delete_event (object obj, DeleteEventArgs args)
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{
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/* If you return FALSE in the "delete_event" signal handler,
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* GTK will emit the "destroy" signal. Returning TRUE means
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* you don't want the window to be destroyed.
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* This is useful for popping up 'are you sure you want to quit?'
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* type dialogs. */
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Console.WriteLine ("delete event occurred\n");
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Application.Quit ();
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}
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public static void Main(string[] args)
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{
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/* This is called in all GTK applications. Arguments are parsed
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* from the command line and are returned to the application. */
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Application.Init ();
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/* create a new window */
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Window window = new Window ("helloworld");
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/* When the window is given the "delete_event" signal (this is given
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* by the window manager, usually by the "close" option, or on the
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* titlebar), we ask it to call the delete_event () function
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* as defined above. The data passed to the callback
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* function is NULL and is ignored in the callback function. */
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window.DeleteEvent += new DeleteEventHandler (delete_event);
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/* Sets the border width of the window. */
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window.BorderWidth = 10;
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/* gtk_container_set_border_width (GTK_CONTAINER (window), 10);*/
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/* Creates a new button with the label "Hello World". */
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Button btn = new Button ("Hello World");
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/* When the button receives the "clicked" signal, it will call the
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* function hello() passing it NULL as its argument. The hello()
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* function is defined above. */
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btn.Clicked += new EventHandler (hello);
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/* This packs the button into the window (a gtk container). */
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window.Add (btn);
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/* The final step is to display this newly created widget. */
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window.ShowAll ();
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/* All GTK applications must have a gtk_main(). Control ends here
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* and waits for an event to occur (like a key press or
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* mouse event).
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* In C#, we use Application.Run(), as used in Windows.Forms*/
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Application.Run ();
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}
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}
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}
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