This describes the functions used to operate on widgets. These can be used to set style, padding, size, etc.
(Maybe I should make a whole section on accelerators.)
void gtk_widget_install_accelerator( GtkWidget *widget,
GtkAcceleratorTable *table,
gchar *signal_name,
gchar key,
guint8 modifiers );
void gtk_widget_remove_accelerator ( GtkWidget *widget,
GtkAcceleratorTable *table,
gchar *signal_name);
void gtk_widget_activate( GtkWidget *widget );
void gtk_widget_set_name( GtkWidget *widget,
gchar *name );
gchar *gtk_widget_get_name( GtkWidget *widget );
void gtk_widget_set_sensitive( GtkWidget *widget,
gint sensitive );
void gtk_widget_set_style( GtkWidget *widget,
GtkStyle *style );
GtkStyle *gtk_widget_get_style( GtkWidget *widget );
GtkStyle *gtk_widget_get_default_style( void );
void gtk_widget_set_uposition( GtkWidget *widget,
gint x,
gint y );
void gtk_widget_set_usize( GtkWidget *widget,
gint width,
gint height );
void gtk_widget_grab_focus( GtkWidget *widget );
void gtk_widget_show( GtkWidget *widget );
void gtk_widget_hide( GtkWidget *widget );