GtkCheckButton - gtk+ widgets

GtkCheckButton is a widget, that has two states. On and Off. The On state is visualised by a check mark.

#include gtk/gtk.h
void toggle_title(GtkWidget *widget, gpointer window)
{
if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget))) {
gtk_window_set_title(window, "GtkCheckButton");
} else {
gtk_window_set_title(window, "");
}
}

int main(int argc, char** argv) {
GtkWidget *window;
GtkWidget *frame;
GtkWidget *check;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 230, 150);
gtk_window_set_title(GTK_WINDOW(window), "GtkCheckButton");
frame = gtk_fixed_new();
gtk_container_add(GTK_CONTAINER(window), frame);
check = gtk_check_button_new_with_label("Show title");
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), TRUE);
GTK_WIDGET_UNSET_FLAGS(check, GTK_CAN_FOCUS);
gtk_fixed_put(GTK_FIXED(frame), check, 50, 50);
g_signal_connect_swapped(window, "destroy",
G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(check, "clicked",
G_CALLBACK(toggle_title), (gpointer) window);
gtk_widget_show_all(window);
gtk_main();
return 0;
}

We will show a title depending on the state of the GtkCheckButton.

check = gtk_check_button_new_with_label("Show title");
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), TRUE);

The GtkCheckButton is created and is marked by default. Because we show a title by default.

GTK_WIDGET_UNSET_FLAGS(check, GTK_CAN_FOCUS);

This code line disables the focus. I simply didn't like the rectangle over the check button. It does not look good.

if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget))) {
gtk_window_set_title(window, "GtkCheckButton");
} else {
gtk_window_set_title(window, "");
}

We show the title of the window, depending on the state of the GtkCheckButton.


Figure: GtkCheckButton