Basic Linux Gtk App

Language: Hydrogene, Platform: Island, Category: GUI
https://github.com/remobjects/ElementsSamples/tree/master/Hydrogene/Island/GUI/Basic Linux Gtk App

• BasicGtkApp
  • References
    • atk
    • cairo
    • gc
    • gdk
    • glib
    • gtk
    • Island
    • pango
    • rtl
    • Swift
  • Source Files
    • Program.cs
  • Other Files

Program.cs

// based on https://developer.gnome.org/gtk3/stable/gtk-getting-started.html

using atk;
using gobject;
using gio;
using gtk;

/*
  !!! Please note: in order to run this sample, you need to manually copy it to a Linux PC or VM with an active GUI, and run it.
  !!!
  !!! GUI applications cannot be run via SSH or CrossBox 2, and they are also not supported on "Bash on Windows".
*/

namespace BasicGtkApp
{

	class Program
	{

		static GtkWindow *window;

		static void clicked(GtkApplication app, Void *userdata)
		{
			var dialog = (GtkDialog *)gtk_message_dialog_new(null,
															 GtkDialogFlags.GTK_DIALOG_DESTROY_WITH_PARENT,
															 GtkMessageType.GTK_MESSAGE_INFO,
															 GtkButtonsType.GTK_BUTTONS_OK,
															 "Hello World!");
			gtk_dialog_run(dialog);
			gtk_widget_destroy(dialog);
		}

		static void activate(GtkApplication *app, Void *userdata)
		{
			window = (GtkWindow *)gtk_application_window_new(app);
			gtk_window_set_title(window, "RemObjects Elements - Island GTK Sample");
			gtk_window_set_default_size(window, 200, 200);

			var button_box = gtk_button_box_new(GtkOrientation.GTK_ORIENTATION_HORIZONTAL);
			gtk_container_add(window, button_box);

			var button = gtk_button_new_with_label("Hello World");
			g_signal_connect_data((glib.gpointer)button, "clicked", (glib.GVoidFunc)((void *)(clicked)), null, null, (GConnectFlags)0);
			gtk_container_add((GtkContainer *)button_box, button);
			gtk_widget_show_all(window);
		}

		static Int32 Main(string[] args)
		{
			var app = gtk_application_new ("org.gtk.example", gio.GApplicationFlags.G_APPLICATION_FLAGS_NONE);
			g_signal_connect_data((glib.gpointer)app, "activate", (glib.GVoidFunc)((void *)(activate)), null, null, (GConnectFlags)0);
			var status = g_application_run (app, ExternalCalls.nargs, ExternalCalls.args);
			g_object_unref((glib.gpointer)app);
			return status;
		}
	}

}