A button widget connected to a progress bar.
#include <gtk/gtk.h>
/*Signal handler for the "clicked" signal of the Button. Each
click generates a progress bar pulse*/
static void
on_button_click (GtkButton *button,
gpointer user_data)
{
GtkProgressBar *progress_bar = user_data;
gtk_progress_bar_pulse (progress_bar);
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *grid;
GtkWidget *window;
GtkWidget *button;
GtkWidget *progress_bar;
/*Create the window and set a title*/
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "Grid Example");
/*Create a button with a label*/
button = gtk_button_new_with_label ("Button");
/*Create the progress bar*/
progress_bar = gtk_progress_bar_new ();
/*Create a grid and attach the button and progress bar
accordingly*/
grid = gtk_grid_new ();
gtk_grid_attach (GTK_GRID (grid), button, 1, 1, 1, 1);
gtk_grid_attach_next_to (GTK_GRID (grid),
progress_bar,
button,
GTK_POS_BOTTOM, 1, 1);
/*Connecting the clicked signal to the callback function*/
g_signal_connect (GTK_BUTTON (button), "clicked",
G_CALLBACK (on_button_click), progress_bar);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (grid));
gtk_widget_show_all (window);
}
int
main (int argc, char **argv)
{
GtkApplication *app;
int status;
app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
In this sample we used the following:
GtkApplication
GtkWindow
GtkProgressBar
GtkButton
GtkGrid