GTK/ Fenster/ Lösungen

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[Bearbeiten] Ändern der Fenstergröße

Das Beispielprogramm. Die beiden Knöpfe sind dazu da, die Größe des Fensters zu verändern.

#include <gtk/gtk.h>

int groesser_machen(GtkButton *button, gpointer user_data)
{
    gtk_window_resize(GTK_WINDOW(user_data), 300, 300);
}

int kleiner_machen(GtkButton *button, gpointer user_data)
{
    gtk_window_resize(GTK_WINDOW(user_data), 1, 1);
}

int main(int argc, char *argv[])
{
    GtkWidget *window, *box;
    GtkWidget *knopf1, *knopf2;
    
    gtk_init(&argc, &argv);
    
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    box = gtk_hbox_new(true, 10);
    
    g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(gtk_main_quit), NULL);
    
    knopf1 = gtk_button_new_with_label("Größer machen");
    knopf2 = gtk_button_new_with_label("Kleiner machen");
    
    g_signal_connect(G_OBJECT(knopf1), "clicked", G_CALLBACK(groesser_machen), window);
    g_signal_connect(G_OBJECT(knopf2), "clicked", G_CALLBACK(kleiner_machen), window);
    
    gtk_box_pack_start_defaults(GTK_BOX(box), knopf1);
    gtk_box_pack_start_defaults(GTK_BOX(box), knopf2);
    
    gtk_container_add(GTK_CONTAINER(window), box);
    
    gtk_widget_show_all(window);
    
    gtk_main();
}