i have some code that wont compile because it has too many args.

Code:

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static void
spa_on_export_movie(GtkWidget *widget, gpointer user_data) {
          GtkWidget *file_selector = (GtkWidget *)user_data;
          const gchar *selected_filename;
        SWFMovie *movie = NULL;
       
gpointer ptr = g_object_get_data(G_OBJECT( user_data ), "view");
        SpaView *view = SPA_VIEW(ptr);
          selected_filename = gtk_file_selection_get_filename (GTK_FILE_SELECTION (file_selector));
        //movie = spa_swf_movie_new( );
       
        movie = spa_swf_movie_new( SPA_CANVAS(view->canvas) );
        SWFMovie_save(*movie,  selected_filename, 9);
       
}

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1) that's not enough information we need to see both the function and how you're calling it.
2) don't revive 3 year old threads... start your own.