GTK+ tutorial 10

//http://www.youtube.com/user/thecplusplusguy
//Thanks for the typed in code to Tapit85
#include <gtk/gtk.h>
#include <cstring>

static float percent = 0.0;

static gboolean inc_progress(gpointer data)
{
    percent += 0.05;
    if(percent > 1.0)
        percent = 0.0;
    gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(data), percent);
    char c[3];
    sprintf(c, "%d%%", static_cast<int>(percent*100));
    gtk_progress_bar_set_text(GTK_PROGRESS_BAR(data), c);
}

int main(int argc, char* argv[])
{
    gtk_init(&argc, &argv);
    GtkWidget *window, *progress;
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(window, "delete-event", G_CALLBACK(gtk_main_quit), NULL);

    progress = gtk_progress_bar_new();

//  gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "50%");

//  gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress), GTK_PROGRESS_TOP_TO_BOTTOM);

    g_timeout_add(200, inc_progress, progress); // 300 ms

    gtk_container_add(GTK_CONTAINER(window), progress);

    gtk_widget_show_all(window);
    gtk_main();
    return 0;
}