the start-up process of gtk+ app

[周龙 <cc_subhero 163 com>]

Dear Everyone:

 Recently I want to know how the gtk+ 3 choice the x11 backend. But i don't know anything about the process. For example ,here is a "hello world" program:

#include <gtk/gtk.h>

void on_button_clicked(GtkWidget* button, gpointer userdata)

{

 GtkWidget *dialog;

 dialog = gtk_message_dialog_new(NULL, 

   GTK_DIALOG_MODAL |GTK_DIALOG_DESTROY_WITH_PARENT,

   GTK_MESSAGE_INFO,

   GTK_BUTTONS_OK,

   (gchar*)userdata);

 gtk_dialog_run(GTK_DIALOG(dialog));

 gtk_widget_destroy(dialog);

}

int main(int argc, char* argv[])

{

 GtkWidget *window, *button;

 gtk_init(&argc, &argv);

 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

 g_signal_connect(G_OBJECT(window),"delete_event",

   G_CALLBACK(gtk_main_quit),NULL);

 gtk_window_set_title(GTK_WINDOW(window),"Hello World!");

 gtk_container_set_border_width(GTK_CONTAINER(window),10);

 button=gtk_button_new_with_label("Hello World!");

 g_signal_connect(G_OBJECT(button),"clicked",

   G_CALLBACK(on_button_clicked),(gpointer)"hello ,everyone");

 gtk_container_add(GTK_CONTAINER(window),button);

 gtk_widget_show_all(window);

 gtk_main();

 return FALSE;

}

I konw we first need to initialize via gtk_init(),then create a window via gtk_window_new.

But now,I want to know the process of the initialization ,the create of window ,etc. And eventually ,to understanding the gtk+ 3 how to call the x11 backend and display the gtk+ 3 application.

thanks.

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