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POGtk3 window background image
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  1. POGtk3 window background image
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    copied!<p>I'm using C language in gtk+-3.0.12 (latest stable version as of 9/10/2011) How can I create a png background image on a top window and still place other widgets like buttons on the window? I tried the following but the image is drawn over the button.</p> <pre><code>/* * Compile with: * gcc -Wextra -o cairo6 `pkg-config --cflags --libs gtk+-3.0` cairo6.c */ #include &lt;gtk/gtk.h&gt; static cairo_surface_t *surface = NULL; cairo_surface_t *image; static gboolean on_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer data) { cairo_t *cr; surface = gdk_window_create_similar_surface (gtk_widget_get_window (widget), CAIRO_CONTENT_COLOR, gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget)); cr = gdk_cairo_create ( gtk_widget_get_window (GTK_WIDGET(widget)) ); cairo_set_source_surface (cr, image, 0, 0); cairo_paint (cr); cairo_destroy (cr); return TRUE; } int main(int argc, char *argv[]) { GtkWidget *window; gtk_init(&amp;argc, &amp;argv); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); image = cairo_image_surface_create_from_png("bdrop.png"); //Supply your own image here g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL); gtk_widget_set_app_paintable(window, FALSE); gtk_window_set_position (GTK_WINDOW(window), GTK_WIN_POS_CENTER); gtk_window_set_default_size (GTK_WINDOW(window), 800, 480); GtkWidget *ebox = gtk_event_box_new (); GtkWidget *button; button = gtk_button_new_with_label("QUIT"); gtk_widget_set_halign (GTK_WIDGET(button),GTK_ALIGN_CENTER); gtk_widget_set_valign (GTK_WIDGET(button),GTK_ALIGN_CENTER); gtk_container_add (GTK_CONTAINER(ebox), button); g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL); gtk_container_add (GTK_CONTAINER(window), ebox); g_signal_connect(ebox,"draw", G_CALLBACK (on_expose_event),NULL); gtk_widget_show_all (window); gtk_main(); cairo_surface_destroy (image); return 0; } </code></pre>
 

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