I am trying to pass a window object to a callback function, delete everything in that window, and put new stuff in. No matter what I seem to do, when I pass the window into the callback, I get a segfault. Here is the current iteration of my code that now passes a struct to the callback.
Code:
#include <gtk/gtk.h>
typedef struct start_dialog_type {
GtkWidget *window;
GtkWidget *button;
GtkWidget *logo;
} StartDialog;
static void enter_main(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
GtkWidget *box;
GtkWidget *button;
GtkWidget *window;
gtk_widget_destroy(widget);
box = gtk_hbox_new(FALSE, 10);
button = gtk_button_new_with_label("Button1");
gtk_box_pack_start(GTK_BOX(box), button, TRUE, TRUE, 0);
gtk_widget_show(button);
button = gtk_button_new_with_label("Button2");
gtk_box_pack_start(GTK_BOX(box), button, TRUE, TRUE, 0);
gtk_widget_show(button);
button = gtk_button_new_with_label("Button3");
gtk_box_pack_start(GTK_BOX(box), button, TRUE, TRUE, 0);
gtk_widget_show(button);
gtk_widget_show(box);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_container_set_border_width(GTK_CONTAINER(window),0);
gtk_window_set_default_size(GTK_WINDOW(window), 480, 270);
gtk_window_set_type_hint(GTK_WINDOW(window),GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
//gtk_container_add(GTK_CONTAINER(((StartDialog *) data)->window), box); //Doesn't work, throws a seg fault
gtk_container_add(GTK_CONTAINER(window), box);
gtk_widget_show(GTK_WINDOW(window));
}
int main (int argc, char *argv[])
{
GdkCursor *cur;
StartDialog start;
gtk_init (&argc, &argv);
/**********
* start.window
* *******/
start.window = gtk_window_new(GTK_WINDOW_POPUP);
gtk_container_set_border_width(GTK_CONTAINER(start.window),0);
gtk_window_set_default_size(GTK_WINDOW(start.window), 480, 270);
gtk_window_set_type_hint(GTK_WINDOW(start.window),GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
start.logo = gtk_image_new_from_file("./logo.png");
gtk_widget_show(start.logo);
/**********
* start.button
* *******/
start.button = gtk_button_new();
g_signal_connect(start.button, "clicked", G_CALLBACK(enter_main), &start);
gtk_container_add(GTK_CONTAINER(start.button), start.logo);
gtk_widget_show(start.button);
gtk_container_add(GTK_CONTAINER(start.window),start.button);
/**********
* Display and start event loop
* *******/
gtk_widget_show (start.window);
cur = gdk_cursor_new(GDK_BLANK_CURSOR);
gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(start.window)), cur); //Must be placed after the main window gets shown.
gdk_cursor_unref(cur); //Removes cursor object from memory once it has been set
gtk_main ();
return 0;
}
I am currently cross-compiling this for an ARM board. Thank you for any help you can provide!
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