GTK of {Linux} open-source Gui

GTK + (gimp Toolkit) is a set of graphical toolkit for distribution by lgpl license protocol and cross-platform. Originally written for gimp, gimp has become a powerful and flexible universal graphics library. It is one of the mainstream development tools for developing graphic interfaces in GNU/Linux. GTK + also has Windows and Mac OS X versions. --- Baidu encyclopedia

Ubuntu uses GTK as the foundation for GNOME Desktop (gimp Toolkit)

In Linux, the graphical interface of Java is also known as GTK;

The wireshark packet capture tool also uses GTK as the interface development tool. It supports multiple operating systems, that is, cross platforms. You can download the source code for compilation and learning;

We recommend a development ide> codeblocks. It seems that this development tool is also open-source, but I have never downloaded its source code (and arm-Linux-GCC is also open-source, so you can download and modify it)

Appendix: Let's take a look at the Lua (script language) source code!

-------------- Routine 1 -------------------------------------

# Include <stdlib. h>
# Include <GTK/GTK. h>
Static void helloworld (gtkwidget * WID, gtkwidget * Win)
{
Gtkwidget * dialog = NULL;
Dialog = gtk_message_dialog_new (gtk_window (WIN), gtk_dialog_modal, gtk_message_info, gtk_buttons_close, "Hello world! ");
Gtk_window_set_position (gtk_window (DIALOG), gtk_win_pos_center );
Gtk_dialog_run (gtk_dialog (DIALOG ));
Gtk_widget_destroy (DIALOG );
}
Int main (INT argc, char * argv [])
{
Gtkwidget * button = NULL;
Gtkwidget * win = NULL;
Gtkwidget * vbox = NULL;
/* Initialize GTK + */
G_log_set_handler ("GTK", g_log_level_warning, (glogfunc) gtk_false, null );
Gtk_init (& argc, & argv );
G_log_set_handler ("GTK", g_log_level_warning, g_log_default_handler, null );
/* Create the main window */
Win = gtk_window_new (gtk_window_toplevel );
Gtk_container_set_border_width (gtk_container (WIN), 8 );
Gtk_window_set_title (gtk_window (WIN), "Hello World ");
Gtk_window_set_position (gtk_window (WIN), gtk_win_pos_center );
Gtk_widget_realize (WIN );
G_signal_connect (win, "Destroy", gtk_main_quit, null );
/* Create a vertical box with buttons */
Vbox = gtk_vbox_new (true, 6 );
Gtk_container_add (gtk_container (WIN), vbox );
Button = gtk_button_new_from_stock (gtk_stock_dialog_info );
G_signal_connect (g_object (button), "clicked", g_callback (helloworld), (gpointer) Win );
Gtk_box_pack_start (gtk_box (vbox), button, true, true, 0 );
Button = gtk_button_new_from_stock (gtk_stock_close );
G_signal_connect (button, "clicked", gtk_main_quit, null );
Gtk_box_pack_start (gtk_box (vbox), button, true, true, 0 );
/* Enter the main loop */
Gtk_widget_show_all (WIN );
Gtk_main ();
Return 0;
}

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